Leading IVF Doctors & Specialists
Find the right reproductive specialist
Leading IVF Doctors & Specialists · Inclusion criteria: listed specialists practice at credential-verified, accredited fertility centers. Education, board certification (e.g., ABOG, reproductive endocrinology & infertility fellowship) and years of experience are verified against official hospital records and public licensure registries; patient reviews are manually verified before publication. How we verify doctors
Mitchell Scott Rein, MD
Reproductive Endocrinologist
Dr. Mitchell Scott Rein is a reproductive endocrinologist at Mass General Fertility Center practicing in Danvers, and the former chief medical officer of Salem Hospital for nineteen years. He treats uterine fibroids, abnormal uterine bleeding, infertility and menopause, and publishes on fibroid genetics.
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United States 
Dr. Mitsuyoshi Amita
Doctor of Medicine
Dr. Mitsuyoshi Amita is an adjunct physician at Kato Ladies Clinic in Shinjuku, Tokyo, combining reproductive medicine with clinical genetics. He trained at Yamagata University, completed research training at the University of Missouri, served in the infertility department of the National Center for Child Health and Development, and is a certified clinical genetic specialist.
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Japan 
Mohamad Irani, M.D., H.C.L.D.
Reproductive Endocrinologist
Mohamad Irani holds triple board certification — OB/GYN, reproductive endocrinology and infertility, and high-complexity clinical laboratory direction — and has taken ASRM's Star Award in 2022, 2023 and 2025. His research anchors on fertility preservation, PCOS and recurrent pregnancy loss.
United States 
Assoc. Prof. Dr. Mohd Faizal Ahmad
Reproductive Endocrinology & Oncofertility Specialist
Assoc. Prof. Dr. Mohd Faizal Ahmad is a reproductive endocrinologist and oncofertility specialist at IVcare Fertility with over 15 years of experience. He holds a fellowship in Oncofertility from Japan and a Doctorate in Obstetrics and Gynaecology from UKM, with assisted reproductive success rates exceeding 80%.
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Malaysia 
Molly Quinn, MD, FACOG
Reproductive Endocrinologist
Molly Quinn is a board-certified reproductive endocrinologist at HRC Fertility Pasadena. Stanford-trained through UCSF, she researches what happens after retrieval — the embryology lab's role in IVF outcomes and the long-term safety of assisted reproduction.
United States 
Monica A. Mainigi, MD
Reproductive Endocrinologist
Monica Mainigi directs the REI fellowship program that trains Penn's next reproductive endocrinologists and runs laboratory work on endometrial tissue grown on a chip, aimed at how the lining accepts an embryo. NIH-funded, board-certified since 2007, she focuses clinically on implantation failure, fertility preservation and Turner syndrome, and sees patients in Hindi.
United States 
Dr. Monica Chung, MD
Reproductive Endocrinologist
Dr. Monica Chung is the physician Dallas-Fort Worth Fertility Associates assigned to its newest site, the Baylor Medical Pavilion office on Gaston Avenue. She came out of Baylor College of Medicine's reproductive endocrinology fellowship carrying a concurrent master's degree in clinical research, and her published work on endometriosis and on obstetric outcomes after IVF has won awards at national meetings.
United States 
Dr. Monica Pasternak
Reproductive Endocrinologist
Spring Fertility's SART-listed medical director: Yale-trained, Cornell fellowship-trained reproductive endocrinologist practicing in Pacific Heights.
United States 
Dr. Mousa Shamonki
Reproductive Endocrinology and Infertility (REI) Specialist
Dr. Mousa Shamonki ran UCLA's in vitro fertilization and assisted reproduction program as its director from 2006 before joining FSAC as a partner physician. He trained at Vermont, Cornell and Reproductive Medicine Associates of New Jersey, where his profile puts his procedural volume in the thousands, and is double board-certified.
United States 
Dr. Hiroki Nakabayashi
Doctor of Medicine
Dr. Hiroki Nakabayashi is an adjunct physician at Kato Ladies Clinic in Shinjuku, Tokyo, on its minimal-stimulation and natural-cycle IVF team. He is a Showa University obstetrics and gynecology trainee with experience spanning university hospitals and a dedicated ART clinic in Hokkaido, and joined KLC in 2023.
Japan 
Dr. Nam D. Tran
Reproductive Endocrinologist
Board-certified MD/PhD reproductive endocrinologist; former UCSF assistant professor and regenerative medicine PI for ovarian failure and azoospermia.
United States 
Natalia C. Llarena, MD, FACOG
Reproductive Endocrinologist
Natalia Llarena is a board-certified reproductive endocrinologist at HRC Fertility Pasadena. She trained end to end at the Cleveland Clinic, where she won the Tommaso Falcone Award for excellence in REI, and focuses on endometriosis, reproductive surgery and ovarian aging.
United States Showing 721-731 of 963
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