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
Alan S. Berkeley, MD
Professor, Department of Obstetrics and Gynecology; Director at NYU Langone Fertility Center
Dr. Alan S. Berkeley is a Professor of Obstetrics and Gynecology at NYU Grossman School of Medicine and a Director at NYU Langone Fertility Center. He completed his fellowship in Reproductive Endocrinology and Infertility at Yale-New Haven Medical Center, where he also did his OB-GYN residency. He has more than 50 published articles, has been named to NY Magazine Best Doctors many times, and specializes in female and male infertility, IVF, PGD, egg freezing, PCOS, recurrent miscarriage, and gestational surrogacy.
Alan Penzias, MD
Reproductive Endocrinologist
Dr. Alan Penzias co-founded Boston IVF in 1986 and still serves as its Regional Medical Director. Double board-certified in OB/GYN and REI, he chaired the ASRM Practice Committee for six years and has published more than 100 papers.
Alex Robles, MD
Reproductive Endocrinologist
Dr. Alex Robles, a Spanish-speaking reproductive endocrinologist trained at Weill Cornell and Columbia, pairs standard IVF and egg freezing with nutrition, lifestyle and integrative care at Columbia University Fertility Center.
Alexandra Huttler, MD
Reproductive Endocrinology and Infertility (REI) Fellow
Dr. Alexandra Huttler is a reproductive endocrinology and infertility fellow at Boston IVF, seeing patients at the Downtown Boston and South Portland, Maine centers. She trained as Chief Resident in obstetrics and gynecology at Pennsylvania Hospital and publishes on the ethics of genetic testing in IVF, ART outcomes and disparities in reproductive care.
Alexis P. Melnick, M.D.
Reproductive Endocrinologist
Alexis Melnick covers the full reproductive lifespan at Weill Cornell's CRM — ovulation induction through IVF, egg freezing, donor eggs, PGT and menopause — and cares for patients in English and Spanish, including by video visit.
Ali Guerami, M.D.
Reproductive Endocrinology & Infertility Specialist
Dr. Ali Guerami is a double board-certified reproductive endocrinologist at Fertility Specialists of Texas with more than 30 years in practice. He earned his medical degree at Tehran University Medical Center, trained at Georgetown and UT Southwestern, and is a Texas Monthly Super Doctor. Fluent in English and Farsi.
Ali J. Ainsworth, M.D.
Reproductive Endocrinologist
Dr. Ali Ainsworth directs the in vitro fertilization program for Mayo Clinic's Division of Reproductive Endocrinology and Infertility in Rochester, Minnesota. She is double board-certified by the American Board of Obstetrics and Gynecology in ob/gyn (2021) and REI (2023), with clinical focus on infertility, fertility preservation and premature ovarian insufficiency.
Alice Park
Reproductive Endocrinologist
Dr. Alice Park is a board-certified reproductive endocrinologist listed at INCINTA Fertility Center in Torrance for 2022 to 2024; she is not on the clinic's current team page. She trained at UT Southwestern, Mount Sinai and UC San Diego and focuses on PCOS, diminished ovarian reserve and fertility preservation before cancer treatment.
Alisa
Reproductive Medicine Team Specialist
Alisa is a reproductive medicine team specialist at iBaby Fertility & Genetic Center in Bangkok, supporting IVF care, cycle nursing and international patient coordination.
Alisia (Lisa) Ortiz, WHNP-BC
Women's Health Nurse Practitioner
Alisia (Lisa) Ortiz, WHNP-BC spent years as a women's health nurse practitioner in the Air Force Academy gynecology clinic before coming to CCRM. She handles the nursing side of fertility care at Lone Tree: IUIs, endometrial biopsies, cycle monitoring and the examinations that open an IVF workup.
Alison C. Peck, MD, FACOG
Reproductive Endocrinologist and Infertility Specialist
Alison C. Peck, MD, FACOG is a double board-certified reproductive endocrinologist practicing at HRC Fertility's Encino, Westlake Village and Los Angeles offices. She has treated infertility patients in Los Angeles since 2006, co-founded the group's recurrent pregnancy loss and implantation failure program, and co-authored Everything Egg Freezing.
Allison Abbey, PA-C
Physician Assistant (PA-C)
Allison Abbey, PA-C is a physician assistant — not a physician — on the Pinnacle Fertility Arizona team. She started inside the practice as a clinical assistant before earning her Master of Science in Physician Assistant Studies at A.T. Still University, and the site profiles her around patience, empathy and explaining every step. She took the network's 2025 Best-in-Class Care recognition.
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