Melvin Thornton, MD, is listed here as an affiliated physician who is not accepting new patients.
Fertility clinics
New York, NY · New York City · (212) 810-2828
Doctors
Medical director
8.8/10 · 58 reviews · Oct 2026
Physician
10.0/10 · 3 reviews · Oct 2026
Reproductive Endocrinologist
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80 excerpts on this page143 Google reviews
I had a horrible experience and only go 6 oocytes even thought they kept communicating that I would have at least 15 from from my AMH and other levels. The Anesthesiologist…I had a horrible experience and only go 6 oocytes even thought they kept communicating that I would have at least 15 from from my AMH and other levels. The Anesthesiologist literally asked me about the hysterectomy when I was doing the OPPOSITE. This terrified me and and I would not recommendExtend Fertility is hands-down one of the best fertility clinics I’ve ever experienced. From the moment you walk in, the entire staff makes you feel comfortable, supported, and…Extend Fertility is hands-down one of the best fertility clinics I’ve ever experienced. From the moment you walk in, the entire staff makes you feel comfortable, supported, and truly cared for. The office is clean, modern, and welcoming, and the atmosphere feels calming. Everyone was extremely knowledgeable, professional, and patient. They take the time to explain every step in detail, answer all questions thoroughly, and make sure you never feel rushed. I also appreciated how organized and efficient everything was—from scheduling appointments to lab work and follow-ups. Communication was excellent, and they were always quick to respond whenever I needed something. What really stands out about Extend Fertility is how compassionate and understanding they are. They genuinely care about your goals and make you feel supported every step of the way. I highly recommend Extend Fertility. Their professionalism, kindness, and expertise are truly unmatched.Very disappointing experience. The appointment felt rushed, impersonal, and focused on upselling rather than providing clear, personalized guidance. My partner and I left feeling…Very disappointing experience. The appointment felt rushed, impersonal, and focused on upselling rather than providing clear, personalized guidance. My partner and I left feeling confused and unsupported after receiving concerning results. Communication afterward was poor. We had to chase down test results, timelines were unclear, and we never received proper follow-up from a doctor. Meanwhile, we were contacted quickly about payment, which felt inappropriate given the lack of care. Overall, we did not feel supported or prioritized as a patient and would not recommend this clinic.I unfortunately cannot recommend this practice. The entire website focuses on fertility and preservation benefits however upon contacting the office, single men are ineligible to…I unfortunately cannot recommend this practice. The entire website focuses on fertility and preservation benefits however upon contacting the office, single men are ineligible to utilize cryopreservation which is inherently inaccessible and exclusive for a medical practice.I would not recommend Dr. Klein or this facility. We paid over $400 for a consultation and were left waiting over an hour past our scheduled time. When we were finally seen, Dr.…I would not recommend Dr. Klein or this facility. We paid over $400 for a consultation and were left waiting over an hour past our scheduled time. When we were finally seen, Dr. Klein was unapologetic, even though it was obvious we were upset. He came across as distracted, avoided eye contact, and was not personable. After the appointment, I sent my medical records along with a follow-up email and never received a response. When I called the office, I was told to forward everything again because “Dr. Klein is not good with email.” For the price and importance of fertility treatment, this level of care and professionalism is unacceptable. Dr. Klein is not listed on any reputable “best doctors” lists, and based on my experience, it’s easy to see why. I would strongly suggest seeking care elsewhere.
I hesitate writing this review, but would want other women to have full knowledge before making a financial and medical commitment to this provider. My priority going into this…I hesitate writing this review, but would want other women to have full knowledge before making a financial and medical commitment to this provider. My priority going into this process was to find a doctor & team who were able to communicate with me (i.e. help me understand each step of the journey) and treat me with humanity. Initially, Dr. Klein seemed like he would be able to provide both of these asks, as he spent an hour with me walking through my specific case and educating me on what I needed to know. I was assigned a patient coordinator, Avigayil, to whom I could ask questions. When I was ready to start, nearly 5 months after the initial meeting, I called Avigayil and got help through a nuanced situation. I appreciated that there was a class for injections, especially as someone who was anxious about needles. However, as the process commenced, I became less enamored with my experience. Through my first 8 days of monitoring, I saw no one except the phlebotomist and the ultrasound technician. A different nurse would call me with instructions every few days after my bloodwork and ultrasound - a quick minute conversation - and any question I had would require follow-up, which didn’t bolster any confidence. Avigayil did not check in. I wanted to know more about why certain decisions were being made, and understand my progress relative to initial expectations. I did not get this. On my ninth day, I was told two different sets of instructions involving the trigger shot, and had to call multiple times (and email Dr. Klein) for clarification. At this point, I hadn’t spoken to or communicated with Dr. Klein directly in over 5 months. A nurse shared that she had asked Dr. Klein to call me, as he should have seen me at least once during my numerous monitoring visits, but I did not get a call, only an email response hours later. Morning of my retrieval, Dr. Klein arrived nearly an hour late to my procedure (I was the first retrieval of the day) and spoke to me for about 30 seconds before heading back to the OR. I’ve had a handful of surgery/procedures through my life, and this was the first time I felt like I was treated like a box to check or a number on a page. A little humanity goes a long way, especially in a field wrapped up in many emotions, but I found little to no humanity here. It’s clear from other reviews that there have been some positive experiences here. However, if I were speaking to a friend, peer or colleague, I would caution them against using Extend Fertility as they risk the experience I had. In NYC, I’m certain you could find a capable practice able to provide you with the humanity and communication you deserve through a process as intimate as this one.Exceptional Service and Support! I had a fantastic experience with Extend Fertility. From the initial consultation to the follow-up, their team was incredibly knowledgeable and…Exceptional Service and Support! I had a fantastic experience with Extend Fertility. From the initial consultation to the follow-up, their team was incredibly knowledgeable and supportive. The clinic's state-of-the-art facilities and personalized care made me feel confident and well-informed throughout the entire process. The staff took the time to explain each step, answer all my questions, and provide emotional support, which made a significant difference. Their expertise in fertility preservation is truly top-notch, and I highly recommend them to anyone considering this important decision. Extend Fertility exceeded all my expectations!I worked with Dr. Klein. He and the clinic staff, phlebotomists, and sonographers were knowledgeable and kind. I did a retrieval previously at Genesis Fertility and the level of…I worked with Dr. Klein. He and the clinic staff, phlebotomists, and sonographers were knowledgeable and kind. I did a retrieval previously at Genesis Fertility and the level of care was considerably lower. I also got much better results at …I had such an amazing experience with Extend for egg freezing. I had completed a round previously at a different clinic, and the experiences were night and day! My practitioner,…I had such an amazing experience with Extend for egg freezing. I had completed a round previously at a different clinic, and the experiences were night and day! My practitioner, Valerie Shafran, was incredible - my treatment plan felt incredibly personalized and she made me feel like an actual patient and not just another number. Dr Abittan did my retrieval procedure, he was also so great! The whole team put me at ease and I was able to get really positive results. I would definitely recommend this clinic and the entire team.2 stars (should be less) for the lack of organization and attention from the administrative staff pre, during, and post visit. I’ve have many issues with the…2 stars (should be less) for the lack of organization and attention from the administrative staff pre, during, and post visit. I’ve have many issues with the receptionist/coordinator/nurse not communicating with each other in terms of next …While my interactions with the staff wasn’t bad at this clinic (friendly, responsive), I did want to share my experience for women considering this clinic. I went through with the…While my interactions with the staff wasn’t bad at this clinic (friendly, responsive), I did want to share my experience for women considering this clinic. I went through with the egg retrieval procedure with Dr Klein and had to go to the ER for internal bleeding only a few hours later. I had vomiting and nausea and fainted post opp when I arrived home. My hemoglobin levels dropped to 8 and stayed in the ER for monitoring. Took 3 weeks to fully recover and feel back to normal. The staff was available for a phone call and did one monitoring appointment afterward but they were a bit dismissive in what could have happened or explaining what went wrong in the procedure. Not sure how often this happens at this clinic as there can always be complications with this process, but wanted to share with people considering the clinic.This is a wonderful place that I will always hold dear to my heart. I went to extend on a referral from a friend 5 years ago and had two rounds of egg freezing. I also recently…This is a wonderful place that I will always hold dear to my heart. I went to extend on a referral from a friend 5 years ago and had two rounds of egg freezing. I also recently had a successful embryo transfer a couple of months ago so I have a long history with this clinic. I have nothing but amazing things to say about the process from start to finish. Their prices are incredible, the entire staff is professional, compassionate, and efficent (coordinators, front desk, doctors and nurses). I had the pleasure of working with Dr. Abittan and Dr. Klein. Both phenomenal doctors. They made me feel safe and heard. Dr. Abittan has this special confidence about him that’s infectious. Both doctors along with their staff made this whole process feel peaceful and easy. Since I had moved out of state after my egg freezing I had to do outside monitoring with a clinic in my state during this process. I tried two different clinics, one was outright terrible and the other one was just okay. They were both almost triple the price of extend for subpar service. You could never get a human on the phone and they treated you like a number. Extend Fertility is the opposite of this. They made me feel like I was their only client. I got very lucky and had a successful transfer on my first try but even if I didn’t I would still feel the same about Extend. They are truly an amazing company that I will continue referring to everyone I know to.I had a really nice experience with Extend. From the start, the process felt smooth and supportive. After my consult, I was paired with an advisor who walked me through the next…I had a really nice experience with Extend. From the start, the process felt smooth and supportive. After my consult, I was paired with an advisor who walked me through the next steps and made sure I knew what to expect .The nurses were amazing, so friendly and always ready to answer my questions. Most of my scans were done with the sonographer, who was professional and kind, but my provider always reviewed the results. Overall, I’m really happy with my decision to freeze my eggs here. The whole process felt manageable, and I felt really cared for every step of the way.Words can’t express how grateful we are to the entire team at Extend Fertility. We were with another clinic for 4+ years with zero answers and the finish line constantly being…Words can’t express how grateful we are to the entire team at Extend Fertility. We were with another clinic for 4+ years with zero answers and the finish line constantly being pushed out. We were treated as a customer at the previous clinic and not patients. The drastic difference we experienced from our very first consultation with Extend, we felt supported, informed, and genuinely cared for. The doctors took the time to explain every step of the process, and the nurses were compassionate and encouraging throughout every appointment. As we know, it is very expensive to undergo these treatments and the billing staff goes over and beyond to ensure your insurance is covering what they are supposed to and/or out of pockets are communicated beforehand. If you're looking for a fertility clinic that combines professionalism with empathy, this is the place. We couldn't recommend them more highly!DO NOT come to this clinic. They are not professional in many many ways. Did all my tests told me I could get around 20 eggs. Then two days before my surgery, They said my number…DO NOT come to this clinic. They are not professional in many many ways. Did all my tests told me I could get around 20 eggs. Then two days before my surgery, They said my number was not good. Turned out to be the doctor didn't give me enough dose of medicine. I was like WHAT ?! They didn't even say sorry and try to blame me maybe I didn't follow the instructions to take the shots ?! It was a total horrible experience!!!! They are not friendly, not responsible, most importantly not making me feel comfortable as a woman who is at the most vulnerable situations.I recently completed another egg retrieval cycle with Extend and am beyond pleased with my experience. Unlike other fertility clinics where calls often go to voicemail or require…I recently completed another egg retrieval cycle with Extend and am beyond pleased with my experience. Unlike other fertility clinics where calls often go to voicemail or require navigating through multiple lines, Extend was different. I could reach someone at all times, which was incredibly reassuring throughout the process. Despite the challenges of traveling for the procedure, including being late for my final retrieval due to traffic, the warmth and professionalism of the Extend team made a significant difference. Their understanding and kindness significantly lessened my stress during a moment when I needed it most. The expertise and compassionate approach of the staff at Extend set them apart. I felt supported and valued from start to finish, ensuring a smooth and stress-free experience. I cannot recommend Extend enough to anyone considering egg freezing. The peace of mind and confidence I felt throughout my journey with them are invaluable. A special shoutout to the staff for their unwavering support and kindness. Thank you, Extend, for making such a significant part of my life's journey a positive and memorable one!Extend helped me through 3 rounds of egg freezing over 6 months due to my low AMH levels/age. From start to finish, it was a great experience. My consultation with my provider…Extend helped me through 3 rounds of egg freezing over 6 months due to my low AMH levels/age. From start to finish, it was a great experience. My consultation with my provider (Valerie) and fertility advisor (Cynthia) was great. They were both very knowledgable, patient, and empathetic even though they knew my projected egg count would be low. I decided to do 1 cycle and see if it would be worth trying for more. The nurses and staff are all amazing, and the facilities are bright, calm, and inviting. It's not easy to be happy at 7am but somehow the Extend staff always is, and that made me look forward to the blood draw/ ultrasound visits! I wasn't even nervous at the first retrieval bc the surgical team was so calm and talked through every step. Plus the nurse the day before sat me down and explained it as well during pre-op paperwork signing. It was exactly as they said 15-20 min and you're up, no pain. Slight discomfort day of and after. Dr Abbitan is amazing, I ended up having him as my surgeon all 3 rounds. The hiccups? I wasn't given my patient portal sign in on the first night of injections...make sure you have this bc it's a lot of information to take in over the phone and the nurses write them out onto your portal everyday. And there was some miscommunication during my 2nd cycle and my trigger shot wasn't sent to the pharmacy. But I called the after hours line and one of the nurses was able to resend it. Hey I work in healthcare too, I forget things like sending a prescription so I totally get it. My experience at Extend was top notch. I recommend them unconditionally. I am so glad I did egg freezing. And I'm so glad I got to do it with Extend.Dr. Klein is the best doctor. He is extremely patient and understanding. He really cares about his patients and is always so kind. My husband and I can’t thank him enough for…Dr. Klein is the best doctor. He is extremely patient and understanding. He really cares about his patients and is always so kind. My husband and I can’t thank him enough for everything he’s done for us. Besides Dr. Klein, the other doctors like Dr. Abittan, the nurses and all the staff that works there are the sweetest people. We are very thankful for the doctors and everyone who works there.
I froze my eggs at this clinic 7 years ago when I was 35. At the time, I was very happy with the attention and care I received. The clinic was warm and welcoming, and I Felt that…I froze my eggs at this clinic 7 years ago when I was 35. At the time, I was very happy with the attention and care I received. The clinic was warm and welcoming, and I Felt that all my questions were answered. The cost was very competitive and I felt secure in my reproductive future when I was able to freeze 12 eggs. However, this feeling of positivity changed when I decided to use the eggs 6 years later. By this time I had moved to Arizona, so the eggs were shipped to a new fertility clinic in the Phoenix area. Once that clinic received the eggs (and knowing my intent to fertilize them), they informed me that the eggs are all "granular" (all 12 of them) and that they therefore had lowered likelihood of yielding viable embryos. They said this as if I already knew it, because the embryologist at Extend Fertility had written "granular" in the notes section next to each egg. However, no one at Extend told ME this; it was just quietly written on my report. Had I known this at the time, I likely would have undergone a second egg retrieval. I contacted someone from Extend to voice my frustration about this; these eggs had been my insurance policy, so to speak, and now at 41 years old I was learning someone at Extend knew they looked like poor quality, wrote this on my report, but did not tell me. The doctor at Extend said that there is no evidence granular eggs is a significant factor to note; however, as my fertility doctor in Phoenix pointed out - if that is the case, why was it, in fact, noted? My fertility doctor in Phoenix said if he had a patient with granular eggs, he would let that patient know. I wish Extend had done that for me. Ultimately, I was left with the decision of if I did or did not want to spend thousands of dollars to fertilize eggs that had a lowered likelihood of success. My fertility clinic in Phoenix offered me an experimental procedure that was half the cost of fertilizing these questionable eggs, so I went that route, and my beautiful baby boy is beside me as I type this. So I don't type out of anger or animosity - thankfully, my story ended well. But I write this as a warning to to others that your experience at Extend might be great in the moment, but years from now when you want to actually use the eggs you froze, you might discover bad news.This was an extremely intricate process. I have a demanding job and barely have time for laundry, let alone anything fertility related. When I finally made time for it, Extend…This was an extremely intricate process. I have a demanding job and barely have time for laundry, let alone anything fertility related. When I finally made time for it, Extend made the process easy. The communication and guidance were incredible. They make it very easy for a person to follow instructions. Highly recommend!The facility itself is immaculate and very well organized. All the staff is warm, friendly and compassionate. Dr. Klein took his time to answer all our questions and concerns, he…The facility itself is immaculate and very well organized. All the staff is warm, friendly and compassionate. Dr. Klein took his time to answer all our questions and concerns, he didn't rush us out of his office. He is also very realistic and doesn't set one up with false hopes. I feel extremely confident in the services I will be receiving with Extend fertility and highly recommend!They were extremely helpful and organized, since I retrieved and stored my eggs in 2017 at their facility. When I went back to use my eggs five years later, I was delighted to…They were extremely helpful and organized, since I retrieved and stored my eggs in 2017 at their facility. When I went back to use my eggs five years later, I was delighted to find out they now offer a full range of IVF services and went …Extremely professional, yet personal experience. We were warmly greeted at each visit. Reception staff were always sensitive and respectful, and made sure we had a comfortable and…Extremely professional, yet personal experience. We were warmly greeted at each visit. Reception staff were always sensitive and respectful, and made sure we had a comfortable and private place to sit. Whenever needed they would give us our own little waiting area, to maintain utmost privacy. The place is beautifully designed creating a professional and serene vibe. Dr. Abittan went above and beyond to help us through the unknown. He was always available to answer any questions or concerns that would arise, and explained things in a way that was easy to understand. The nurses were courteous and knowledgeable. Results and instructions were always timely and super clear. This was an exceptional experience!I had an incredible experience throughout my Egg Freezing cycle with the Extend Fertility team. Everyone was kind, attentive and caring, and created an environment where I felt…I had an incredible experience throughout my Egg Freezing cycle with the Extend Fertility team. Everyone was kind, attentive and caring, and created an environment where I felt open to ask questions, express concerns, and share excitement. The facility was modern, clean, welcoming -- a space I did not mind spending so much time at. Special shoutout to my fertility advisor, Cynthia, who made this entire process seamless! I would highly recommend Extend Fertility to anyone looking into freezing their eggs.Extend Fertility is amazing! As someone who underwent egg freezing in their NYC-based clinic, I couldn't be more impressed with the whole experience. The team's professionalism,…Extend Fertility is amazing! As someone who underwent egg freezing in their NYC-based clinic, I couldn't be more impressed with the whole experience. The team's professionalism, compassion & knowledge is very reassuring. I got great results thanks to them. I highly recommend Extend Fertility to anyone considering egg freezing!Fabulous experience here!! All doctors, nurses and staff are super nice, knowledgeable and courteous, they deserve 10 stars! The prices are cheaper than anywhere else in the city…Fabulous experience here!! All doctors, nurses and staff are super nice, knowledgeable and courteous, they deserve 10 stars! The prices are cheaper than anywhere else in the city and we had great results. I can't say enough good things about Dr. Klein and the whole team at Extend. HIGHLY HIGHLY recommend!I was fortunate enough to have the means at age 35 to freeze my eggs with Extend; at that time I truly saw it as an 'insurance' policy just in case I needed them later on, when I…I was fortunate enough to have the means at age 35 to freeze my eggs with Extend; at that time I truly saw it as an 'insurance' policy just in case I needed them later on, when I found the right person to start a family with. Fast forward 6 years and turns out I did struggle with infertility and needed to use my frozen eggs. I had a very successful transfer in 2021 and gave birth to my first baby boy in 2022. The team at Extend was great to work with and very communicative; they were flexible and worked with me since at the time I was living out of the NYC area so I had to do monitoring appts elsewhere and have my results sent over. I traveled to the clinic for the transfer, and they were able to work with me and my crazy travel schedule to find a time that worked. Overall I would highly recommend!I did 1 round at Extend and had a very positive result. The nurses were always available to answer questions. The appointments, which happen every other day when you are in the…I did 1 round at Extend and had a very positive result. The nurses were always available to answer questions. The appointments, which happen every other day when you are in the middle of a cycle, were very quick and easy so I was on my way to work very quickly. My final appointment went very smoothly, on time, and I had minimal downtime afterwards. I felt totally fine within a couple hours.I used Extend Fertility (Dr. Olcha) in the fall 2023 for egg freezing. I had a wonderful experience. My care team, nurses, and front desk staff were always timely and good w/…I used Extend Fertility (Dr. Olcha) in the fall 2023 for egg freezing. I had a wonderful experience. My care team, nurses, and front desk staff were always timely and good w/ communication . Dr. Olcha took his time to answer all my …I had a great recent experience at Extend. The nurses were friendly, supportive and caring. They were sensitive to my personal and needs. The appointments ran perfectly on time.…I had a great recent experience at Extend. The nurses were friendly, supportive and caring. They were sensitive to my personal and needs. The appointments ran perfectly on time. They called everyday to followup and change protocol based on results that Dr. Klein checked. I felt prepared physically and emotionally for the actual procedure. I was very satisfied with my results.Dr. Klein is really truly knowledgeable in his field and has really been amazing, calm and gave me the proper attention I needed during my appointments as well as with any follow…Dr. Klein is really truly knowledgeable in his field and has really been amazing, calm and gave me the proper attention I needed during my appointments as well as with any follow up questions. He explained everything clearly in a way I could understand and felt reassured that I was in good hands. The facility is beautiful and immaculate! The team is very sensitive and accommodating to your needs and really do try to be at your beck and call when you need it. Overall, I highly recommend Extend Fertility!Extend fertility was a great clinic. The office staff were kind and caring. Office is beautifuly done with a nice area with snacks while you wait. Nurses called me in a timely…Extend fertility was a great clinic. The office staff were kind and caring. Office is beautifuly done with a nice area with snacks while you wait. Nurses called me in a timely manner to let me know my medication regimen. Dr Klein was kind and caring and follow up was great too! In addition, I was treated with patience and kindness throughout my experience and felt adequately educated during my procedure to feel confident and good. Would definitely recommendWhile his reputation for skill and compassion are true to form, it wasn't just Dr. Klein who made me feel confident and comfortable in having chosen to entrust Extend Fertility…While his reputation for skill and compassion are true to form, it wasn't just Dr. Klein who made me feel confident and comfortable in having chosen to entrust Extend Fertility with my family's future. The staff - be it the administrative staff, to those who monitored me, to the nurses who cared for me before, during and after the procedure, to the lab staff - were all so considerate, sensitive and attentive to my needs and requests. When natural conception simply isn't enough, Extend makes an otherwise challenging process that much sweeter.I can’t say enough good things about my experience at Extend. From the very beginning I felt that people genuinely cared about me and every single person that worked there knew…I can’t say enough good things about my experience at Extend. From the very beginning I felt that people genuinely cared about me and every single person that worked there knew exactly where I was during every step of the process. I felt …I really enjoyed working with Extend Fertility for my recent egg freezing. All of the staff are kind and professional, and every office visit was quick and efficient. I felt…I really enjoyed working with Extend Fertility for my recent egg freezing. All of the staff are kind and professional, and every office visit was quick and efficient. I felt informed every step of the way and all my (many!) questions were answered with patience and care. The partnership with Metro pharmacy on the UES was also great, made it very easy for me. Great experience overall! Special shoutout of thanks to Chelsea, my fertility advisor, and Liza, the nurse I worked with most often. :)I had a Consultation in February this year based on reviewing awesome testimonies about EF. Prior to the consult, I received confirmation via email about my appointment details…I had a Consultation in February this year based on reviewing awesome testimonies about EF. Prior to the consult, I received confirmation via email about my appointment details and that this facility would send any lab work to my insurance’s in network provider and charge at the In-Network rate. The appointment scheduling and my time there was seamless. I have no complaints about the staff as they were all very professional. In fact, after my lab work and examination, I met with a young lady before I left the office who confirmed that the lab work would be sent to my in network provider, which is common practice there. Thus, I left well pleased with my experience and looking forward to starting the process of freezing my eggs, but for COVID-19. However, a month later I received a bill for over one hundred and fifty dollars for out of network lab work. I had email conversations with staff who acknowledged their policy of billing at in network rate but no one honored my request to reduce the bill amount given it was human error, which happens (no one is perfect). I was referred to billing who referred me to the lab company, yet no one honored my request. It has been a frustrating experience because rectifying this error is based on principle and as a business owner myself, I would have gladly reduced the bill for one of my customers. I am disappointed that I am stuck having to pay this much higher bill due to error from staff who did not honor what was presented in writing prior to my consultation and confirmed by others several times afterwards. Unfortunately, I will not use their services going forward because of how this situation was mishandled.I'm very surprised by the low star reviews. My experience with Extend was very positive. Like any clinic I've been to, you're mostly with nurses, phlabotomists, ultrasound techs,…I'm very surprised by the low star reviews. My experience with Extend was very positive. Like any clinic I've been to, you're mostly with nurses, phlabotomists, ultrasound techs, and coordinators and you see the Dr.s only when necessary. To me that is to be expected. The office is very well run and organized, they always call you back in a timely manner, they stay on top of you and make sure you're doing everything correctly with check ins. They are all so caring and warm and genuine. I just loved everyone there. I think their HR person does a very good job hiring! I felt very taken care of and felt they were very sensitive to my situation. Dr. Klein is a gem of a human, the first fertility Dr. I ever felt that I could trust. He never over promised he was always sensible and spoke in terms of science and statistics and always had an optimistic view. He's very kind and gentle and I loved his approach. I got pregnant from my first IVF cycle with them but my body didn't take and I ended up having a miscarriage. I told them I wanted a little break and I ended up getting pregnant right after. I truly believe the miscarriage got my body ready. That was my first time pregnant and I was trying for over 3 years so I cannot imagine it being coincidental. Overall they were so supportive and so happy for me and offered me early pregnancy monitoring which was wonderful. I highly recommend them for sincerity and professionalism. Special shout out to Anna my ultrasound technician who I simply adored. She always gave me positive encouragement and it really helped me on some very difficult days. Thank you Extend!I had the best experience from start to finish working with Extend Fertility. Everyone was so kind, professional, friendly, knowledgable and respectful and made the entire process…I had the best experience from start to finish working with Extend Fertility. Everyone was so kind, professional, friendly, knowledgable and respectful and made the entire process extremely easy! Working with Extend to complete an egg …I froze my eggs in June 2019 and was extremely happy with my experience at Extend Fertility. From the beginning of the process with my consultation, to the end with follow up…I froze my eggs in June 2019 and was extremely happy with my experience at Extend Fertility. From the beginning of the process with my consultation, to the end with follow up calls after my retrieval, the staff at Extend were extremely …I cannot recommend this facility to anyone I care for. I kept a close journal of my experience but it is too long to write here, so I have attached the literature as images. I…I cannot recommend this facility to anyone I care for. I kept a close journal of my experience but it is too long to write here, so I have attached the literature as images. I will provide my introduction and conclusion statements. …What I love about my experience with Dr. Brown was that she was always explaining with scenarios and possible outcomes. IVF is an emotional roller coaster so having those…What I love about my experience with Dr. Brown was that she was always explaining with scenarios and possible outcomes. IVF is an emotional roller coaster so having those scenarios coming from a doctor reduced the anxiety. She did emphasize on possible infertility issues that I was facing but was neither optimistic nor pessimistic. She was very neutral and encouraging to do something.. A weakness that I can identify and I did struggle with at the beginning was her tone when she was explaining something.. It could be seen that she’s not engaging with you but now after an egg retrieval and seeing other doctors in the process and it makes sense more her attitude and she was always right with her dx or approaches. I think as an IVF patient sometimes you want to find answers but unfortunately there are not so many all the time. The best thing you can do is move forward and do something.Dr. Abittan is quick, comprehensive, relatable, and warm when responding to emailed questions. He also makes sure to check in and conduct office exams himself when in a difficult…Dr. Abittan is quick, comprehensive, relatable, and warm when responding to emailed questions. He also makes sure to check in and conduct office exams himself when in a difficult part of the cycle...I was concerned that he was not taking the difficulty of my personal medical situation seriously enough -- he seemed a little flippant. However, I found him to be a dedicated and caring clinician. I think he just has a .more upbeat attitudeI felt that Dr. Maslow was definitely educated and intelligent and when I did get to speak with her, she was very willing to explain everything. However, after the initial…I felt that Dr. Maslow was definitely educated and intelligent and when I did get to speak with her, she was very willing to explain everything. However, after the initial consultation, I did not see her once. She was not at any of my monitoring appointments and did not perform my egg retrieval. After the retrieval, she did call me with the results, even though they were worse than we hopedDr. Klein truly cares about the patient. Optimal results is an individualized thing and it cannot be compared to others...Not only did he take the time to explain it in the way I…Dr. Klein truly cares about the patient. Optimal results is an individualized thing and it cannot be compared to others...Not only did he take the time to explain it in the way I would understand it but also in a very compassionate way which I appreciated and realized was necessary for me to get through the process...Dr. G has a good bedside manner--straightforward but warm. He is decisive about the treatments he pursues but makes sure you feel on board with each stage of treatment. He…Dr. G has a good bedside manner--straightforward but warm. He is decisive about the treatments he pursues but makes sure you feel on board with each stage of treatment. He definitely seems like he knows his stuff and answers questions thoroughly and explains the science behind his decisions without being dismissive.I met with [Dr. Bat-Sheva Maslow] when I first was thinking about starting the process and she was very clear about what I should expect and answered all my questions, she also…I met with [Dr. Bat-Sheva Maslow] when I first was thinking about starting the process and she was very clear about what I should expect and answered all my questions, she also called in a few days after my retrieval to check in and answer any other questions, which really made me feel like I was in great, caring hands...It was nice to start and end with Dr. Maslow, because of the familiarity. Also, she was very clear about expectations and had no problem answering all of my questions...He [Dr. Klein] is honest and straightforward so as not to get your hopes up, but communicates information in a kind and empathetic way...He made himself available every time I…He [Dr. Klein] is honest and straightforward so as not to get your hopes up, but communicates information in a kind and empathetic way...He made himself available every time I asked him to speak again to ask more questions about what went wrong and made suggestions on what changes he would make to the protocol for the next round (while also letting me know we may not get better results the next time). He never gave me false hope, but I felt confident in his planDr Klein always made me feel like a person because he constantly responded to my questions and validated my concerns...Although Dr Klein doesn't see patients often, he came…Dr Klein always made me feel like a person because he constantly responded to my questions and validated my concerns...Although Dr Klein doesn't see patients often, he came whenever I asked. He answered my emails promptly and thoroughly. I felt that worked really hard in getting all my eggs, eventhough my anatomy made it difficult...Email the doctor if you want to know something. He always gets back to you.Dr Klein is extremely knowledgeable with years of experience in the field. He took the time to walk us through expectations, addressing our fears and concerns. He is very data…Dr Klein is extremely knowledgeable with years of experience in the field. He took the time to walk us through expectations, addressing our fears and concerns. He is very data driven, which as a data nerd I loved. He was very straight forward and gave us realistic expectations for our particular case. He was always available by email for questions & made us feel really confident throughout the entire process...Dr. Maslow was realistic and optimistic at the same time. She explained the stats but was willing to go for it. She was concerned about my financial obligations and therefore took…Dr. Maslow was realistic and optimistic at the same time. She explained the stats but was willing to go for it. She was concerned about my financial obligations and therefore took her recommendations seriously. She understood my wants and was excited to try... I saw [her] in person at all critical points...put me on a full stim course to try for IVF. I only produced 1 follicle so we moved to IUI because of COVID-19Dr. Klein not only provided the utmost medical care, regarding all treatments performed, but he always made sure to address the psychological aspect of all that I was going…Dr. Klein not only provided the utmost medical care, regarding all treatments performed, but he always made sure to address the psychological aspect of all that I was going through, and always suggested ways to help me cope and to not feel alone...Dr. Klein strongly recommended transferring only 1 embryo, especially since my embryo's had PGT-A testing and only genetically normal embryo's were being transferred...Dr. Guarnaccia used a chart to determine the correct dosage for my egg retrieval medications based on my blood test and ultra sound results. He assured me that I was in the 95…Dr. Guarnaccia used a chart to determine the correct dosage for my egg retrieval medications based on my blood test and ultra sound results. He assured me that I was in the 95 percentile for my age so I am getting the lowest dose of hormones, which I appreciate.... He was very straightforward and informative. Easy to talk to, willing and able to answer all my questions.He [Dr. Klein] was very knowledgeable and intelligent, and inspired confidence in his decisions. While this approach may not be comforting to everyone, I appreciated his…He [Dr. Klein] was very knowledgeable and intelligent, and inspired confidence in his decisions. While this approach may not be comforting to everyone, I appreciated his analytical perspective and focus on the data and statistics. I like information and expertise, and I never felt as if I was lacking in either of those during the course of my treatment.... I only have one embryo to transfer, but he said he did not like to risk losing multiple embryos in one shot, along with the risk of multiples.[Dr. Joshua Klein] is very knowledgeable and patiently explains the process and everything about it...does lean towards single embryo transfer since there is always the chance it…[Dr. Joshua Klein] is very knowledgeable and patiently explains the process and everything about it...does lean towards single embryo transfer since there is always the chance it may split and result in twins he rather not take the chance of then possibly having triplets or more...he chose to change his schedule so he can be the one to do my retrieval...is fully present by each appointment and really listens to his patients and their concerns. He takes the time to explain all the information and answer any questions to make his patients as comfortable with the process as possibleI only met her [Dr. Bat-Sheva Maslow] once during a consultation and was once seen by a different doctor during the routine visits. She did not do my retrieval. She was really…I only met her [Dr. Bat-Sheva Maslow] once during a consultation and was once seen by a different doctor during the routine visits. She did not do my retrieval. She was really nice and knowledgeable and patiently answered my questions...It was a standard egg retrieval process. They told me to add more hormones based on the growth of my follicles...it feels more like you are a patient of the clinic then any patient of a specific doctor.Dr. Guarnaccia was incredibly knowledgeable and friendly. I would recommend him absolutely as for REI services including egg freezing, which is what I had with him. I appreciated…Dr. Guarnaccia was incredibly knowledgeable and friendly. I would recommend him absolutely as for REI services including egg freezing, which is what I had with him. I appreciated both his candor and his efficiency - working with him as my doctor was all I could ask for during the process...He is very quick - prepare any questions you might have beforehand..My experience with Dr. Guarnaccia wasn't negative--he was nice and friendly, but the treatment felt rote, and his medication recommendations were very standard combinations of…My experience with Dr. Guarnaccia wasn't negative--he was nice and friendly, but the treatment felt rote, and his medication recommendations were very standard combinations of medications for me that had also been recommended to other women at the follow-up experience where you're taught how to inject yourself[Dr. Guarnaccia] was always kind and honest during my scans and egg retrieval procedures. As a 40 year old woman with only 1 ovary I had to be realistic about my situation. I…[Dr. Guarnaccia] was always kind and honest during my scans and egg retrieval procedures. As a 40 year old woman with only 1 ovary I had to be realistic about my situation. I really appreciated that though it would be a longer road I was always told that there was still hope...There were many times where my body was not responding to the course of treatment and instead of pressing me to go forward he would always give me the choice of wether I wanted to continue going forward knowing that the chances of an optimal result were low or to stop for this cycle and then try again next cycle. It made me feel good knowing he was more concerned with the result as opposed to just completing the cycle.I am especially appreciative for a specific out-of-the-box decision he [Dr. Joshua Klein] made during my treatment that I believe contributed to the success of my first IVF cycle…I am especially appreciative for a specific out-of-the-box decision he [Dr. Joshua Klein] made during my treatment that I believe contributed to the success of my first IVF cycle with him. I didn't feel like there were cookie-cutter protocols, but rather that each patient's success was given adequate thought...cares genuinely about each patient and it shows in his communication, responsiveness and throughout every step of the journey. I have never been disappointed.I am seeing Dr. Maslow for egg freezing.... Dr. Maslow was extremely helpful in explaining the complicated elements of a pleasing to me. She was easy to talk to you even when my…I am seeing Dr. Maslow for egg freezing.... Dr. Maslow was extremely helpful in explaining the complicated elements of a pleasing to me. She was easy to talk to you even when my results were not so great in the beginning stages. She was encouraging but honest throughout the process, which I really appreciated.... She also went through other hypothetical AMH blood levels with me and how that might impact my anticipated results.[Dr. Guarnaccia] was very straightforward and detailed, which is an approach I really appreciated. I felt that he was able to express care and concern while also being direct…[Dr. Guarnaccia] was very straightforward and detailed, which is an approach I really appreciated. I felt that he was able to express care and concern while also being direct (warmth in a doctor is not a requirement for me in treatment). I would definitely recommend Dr. G to my friends who are interested in egg freezing... explained my bloodwork and ultrasound results, and showed me data comparing my results to others my age. He was specific about his recommendations regarding getting genetic testing done for my family's history of breast cancer.Dr. Klein is very knowledgeable, has a great bedside manner. He is responsible, professional, and kind. I had a great experience with Dr Klein and his team. My treatment and…Dr. Klein is very knowledgeable, has a great bedside manner. He is responsible, professional, and kind. I had a great experience with Dr Klein and his team. My treatment and procedure were handled professionally, worry- and pain-free...Dr Klein and his team make all the important information easily accessible but if you are unsure about something, just shoot them a quick email or give them a call...I have never ever experienced that type of stellar service with any other doctor...When I shared with my friends how I can email him [Dr. Guarnaccia] and get a reply back in less…I have never ever experienced that type of stellar service with any other doctor...When I shared with my friends how I can email him [Dr. Guarnaccia] and get a reply back in less than 10mins they were shocked...Every Dr. visit I would come in with a list of questions I found on forums or the internet. Dr. G patiently listened and provided detailed answers to my questions, never brushing it off or telling me to stay off the internet... anytime something would happen, i.e., unexpected spotting I would email him and get a response back immediately.He [Dr. Guarnaccia] clearly had not looked at my file before he came in to perform surgery on me. ... . He asked me if I had any medical concerns. This was the first bad sign.…He [Dr. Guarnaccia] clearly had not looked at my file before he came in to perform surgery on me. ... . He asked me if I had any medical concerns. This was the first bad sign. When I said heart disease, history of fibroids, cysts and a clotting disorder, he started scrolling through his stack of papers. ... All I know is that this was an unexpected result and that I got infected under his care. ... He proceeded to go to the computer to get acquainted with my record as this was not necessarily going to be a walk in the parkHE [Dr. Klein] took the time to explain everything very well in our intro meeting, while i did not see him a lot during the cycle, he was available if I needed to speak with him…HE [Dr. Klein] took the time to explain everything very well in our intro meeting, while i did not see him a lot during the cycle, he was available if I needed to speak with him and was very nice...He was knowledgable, kind, and was willing to explain every detail and possible outcome. I appreciated his candor and felt very comfortable speaking with him. And that I was in good care. My procedure went as expected and I felt like he was honest about my odds of retrieving healthy eggs. Which turned out even better than i expected. I was very comfortable in his care.I only did egg freezing [with Dr. Michael Guarnaccia]...always answered questions with patience and understanding. He's been doing this for a long time and he has empathy for his…I only did egg freezing [with Dr. Michael Guarnaccia]...always answered questions with patience and understanding. He's been doing this for a long time and he has empathy for his patients...is a knowledgeable and experienced doctor who is more old fashioned in the way he acts with his patients. He answered every question with patience and understanding, and I think he gets what his patients are going through because he's done this for so many years.I had a short agonist protocol which was closely monitored and had frequent dose adaptions [by Dr. Maslow] and an lupron trigger. The retrieval date was determined based on the…I had a short agonist protocol which was closely monitored and had frequent dose adaptions [by Dr. Maslow] and an lupron trigger. The retrieval date was determined based on the monitoring. She did everything to ensure a good numebr and quality of eggs and the results with her were excellent and a lot better than in my previous treatments. She was able to retrieve a large number of eggs, almost all of them were mature.If I can only can sum up my experience with Dr. Klein with one word, it would be "positive." When the cup was half full, it was half full, not half empty. That was the most…If I can only can sum up my experience with Dr. Klein with one word, it would be "positive." When the cup was half full, it was half full, not half empty. That was the most important to me. As a bonus he was also kind, compassionate and sensitive. Going through this can never be easy, and I faced some challenges. I so appreciated his mild manners and easy touch...[Nurses at Extend were] Awesome! They seriously were my support team. From training to phone calls they were patient and caring. Alla held my hand until i was able to do it on my own, i really felt that they were rooting for me to succeed. During the egg retrieval i was treated like royalty...They were very professional, yet they didn't treat me like a number. Everyone was always friendly and smiling. I believe that freezing my eggs is probably the most important thing I have done for myself and would recommend anyone considering it to just do it and not wait. The biological clock is a real thing.I only saw him [Dr. Klein] once or twice for each of my two cycles but always made me feel comfortable and told me everything I needed to know- answering all questions. He did my…I only saw him [Dr. Klein] once or twice for each of my two cycles but always made me feel comfortable and told me everything I needed to know- answering all questions. He did my second retrieval and made me feel at ease...Follistim 375 iu Menopur 2-3 vials/day cetrotide 4-5 shots, and ovidril trigger shot.... The only thing I didn’t love was that everyday you saw different people- basically whoever was on call that day. I never had a doctor or nurse assigned to me....he [Dr Joshua Klein] absolutely treats each patient as a human being. Every appointment when he's in the room you feel you have his undivided attention - and he's not just…...he [Dr Joshua Klein] absolutely treats each patient as a human being. Every appointment when he's in the room you feel you have his undivided attention - and he's not just being courteous. He actually is giving you his attention, and thinks about what you're saying or asking. Eventhough when I would email him I would try to be brief and matter of fact so as not to take his time, he always responded very kindly. He goes out of his way for his patients, with a no-big-deal kind of attitude, really special doctor to have.Dr. Klein has been extremely patient with my numerous questions. He has the best bedside manners and always thoughtful as he explains everything that he's doing. I'm a very detail…Dr. Klein has been extremely patient with my numerous questions. He has the best bedside manners and always thoughtful as he explains everything that he's doing. I'm a very detail oriented person and he was great with providing information without my having to ask. He's also very open minded to hear about my findings on the internet and discuss the subject matter. I never felt like he was condescending and he never scoffed at what I had to say. He truly listens to his patients. And he always had hope.I had an excellent experience with [Dr.Joshua Klein] ...treated me like a person throughout the 3-years it took me to bank 22 eggs. I am 35 and have low ovarian reserve and am a…I had an excellent experience with [Dr.Joshua Klein] ...treated me like a person throughout the 3-years it took me to bank 22 eggs. I am 35 and have low ovarian reserve and am a poor performer...actually there for me...available to talk details, new strategies or just empathize (plenty of tears shed). I was an out-of-state patient, so this was especially important...I traveled from the west coast 5 times to freeze eggsDr. Klein was very knowledgable. He explained information thoroughly but always in a way that was understandable. He was kind and compassionate when giving difficult news. He…Dr. Klein was very knowledgable. He explained information thoroughly but always in a way that was understandable. He was kind and compassionate when giving difficult news. He answered all my questions (and I had many) and he addressed all my concerns without judgement. ... Dr. Klein listened to my concerns, answered all my questions, and understood my feelings while delivering both good and bad news.Take advantage of the free consultation! Ask him [Dr. Joshua Klein] every question that crosses your mind...Our consultation lasted over an hour. It never felt rushed, and I…Take advantage of the free consultation! Ask him [Dr. Joshua Klein] every question that crosses your mind...Our consultation lasted over an hour. It never felt rushed, and I received much more information and guidance than I expected...Dr. Klein participated in every single office visit... He made it personal and applicable to me, my age, my current situation... No complaints. He had a very high level of engagement which I couldn't be happier about.Dr. Klein is a very sought after dr. which makes getting a consultation with him quite difficult. However it was worth the wait as we got quite good results with him. With a…Dr. Klein is a very sought after dr. which makes getting a consultation with him quite difficult. However it was worth the wait as we got quite good results with him. With a diagnoses of unexplained infertility he told us our best bet was IVF which although expensive and hard to hear saved us a lot of pain and heartache. We did get the results we wanted with IVF....With unexplained infertility we took our chances with clomid and iui. We were told not to continue past 3-4 cycles as that would be expensive and we’d not likely see results. We continued with ivfOne thing I feel kind of unsure about is that when I told him [Dr. Joshua Klein] that I knew that the success rate of freezing and thawing eggs was not as high as freezing and…One thing I feel kind of unsure about is that when I told him [Dr. Joshua Klein] that I knew that the success rate of freezing and thawing eggs was not as high as freezing and thawing embryos, he disagreed with me and said otherwise. I am pretty sure that it is a known fact, but since his entire clinics business model is freezing eggs, I'm sure he feels that he has to believe this.When I had my miscarriage after my first iui cycle that morning I was rushed into his [Dr. Joshua Klein's] office and he sat with us as the clots passed and made sure we were able…When I had my miscarriage after my first iui cycle that morning I was rushed into his [Dr. Joshua Klein's] office and he sat with us as the clots passed and made sure we were able to understand what was going on. Although this process is taking way longer then expected I believe he's doing everything cautiously. The last cycle he's been more aggressive, and he makes sure we have a plan if this iui cycle doesn't work ivf is our next tryThe thing I liked most about him [Dr. Joshua Klein], was his friendly, easy demeanor and the fact that he was so easy to talk to. He was very honest, and didn't sugar coat…The thing I liked most about him [Dr. Joshua Klein], was his friendly, easy demeanor and the fact that he was so easy to talk to. He was very honest, and didn't sugar coat anything, but did so with so much sensitivity, and warmth, which made all the difference for me. The few other times that I saw his partner, Dr.Cort, he was also really patient and warm. Both doctors were very knowledgable and didn't try to pressure me in any way. They very much included me in the decisions, and after giving me the facts about each stage, let me make decisions if I wanted to. My impression is that both Dr. Klein and Dr. Cort really know their field, and are really smart, and I definitely felt like I was in good hands while they treated me.His [Dr. Klein's] knowledge, patience, kindness and empathy are unsurpassed. After having multiple miscarriages and an unexplained infertility diagnosis, Dr. Klein gave me hope…His [Dr. Klein's] knowledge, patience, kindness and empathy are unsurpassed. After having multiple miscarriages and an unexplained infertility diagnosis, Dr. Klein gave me hope that I could still conceive a healthy child someday. He and the Extend Fertility team made this stressful process easier with their personalized care, organizational procedures and clear communication. During every step of the process, I was in contact with either a nurse or Dr. Klein, who reassured me of my progress. Dr. Klein, as busy as he was, never failed to answer my questions in great detail and in a manner that I could easily understand. He is a gem of a doctor and one in whom I have great confidence...I wish every physician in every field of medicine was as good as dr klein was as a Dr, both medically as well as emotionally for the patient going through a tough time. He was…I wish every physician in every field of medicine was as good as dr klein was as a Dr, both medically as well as emotionally for the patient going through a tough time. He was outstanding. He spent a tremendous amount of time from my very first consult until we had a successful pregnancy and I was discharged, explaining every scenario and walking me and my husband through the process and what to expect. As well as what our options would be moving forward.Clinic route
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Provider
Extend Fertility
Role
Fertility clinics
State
New York
Nearby
5 Columbus Cir Suite PH Suite PH, New York, NY 10019 · (646) 756-8282
810 7th Ave 21st Floor, New York, NY 10019 · (212) 290-8100
315 West 57th Street, Suite 208, New York, NY 10019 · (203) 557-9696
693 5th Ave 7th Floor, New York, NY 10022 · (800) 853-7595
