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Leading Specialists in United States
Reproductive specialists in United States
Dr. Gary Hubert
Reproductive Endocrinology and Infertility (REI) Specialist
Dr. Gary Hubert is a double board-certified reproductive endocrinologist who leads Fertility and Surgical Associates of California as co-director, and who is named medical director on the practice's SART 2023 report. A UCLA Medical School graduate with more than 20 years in reproductive medicine, he is recognized by ASRM for work on endometriosis and ovulation dysfunction.
United States 
Gayane Ambartsumyan, MD, PhD
Reproductive Endocrinologist
Dr. Gayane Ambartsumyan is the medical director named on Reproductive Partners Medical Group's SART clinic report and practices at the South Bay campus in Torrance. She holds an MD and a PhD in molecular biology from UCLA, is board-certified in both OB/GYN and REI, and sees patients in English, Armenian and Spanish.
United States 
George Roshdy Attia, MD
Associate Professor, Department of Obstetrics, Gynecology and Reproductive Sciences
George Roshdy Attia is Associate Professor in the University of Miami Miller School of Medicine's Department of Obstetrics, Gynecology and Reproductive Sciences and one of two physicians named on the faculty list of its Division of Reproductive Endocrinology and Infertility, which runs the UHealth Center for Reproductive Medicine in Doral. American Board of Obstetrics and Gynecology certification covers both Obstetrics and Gynecology and Reproductive Endocrinology and Infertility; residency training was at University of Miami/Jackson Memorial Hospital.
United States 
Dr. Gerard Celia, MBA, PhD, HCLD, CC
Laboratory Director, Pacific Fertility Center Los Angeles
Gerard Celia is a PhD laboratory scientist, not a physician: he directs the embryology and high-complexity laboratory at Pacific Fertility Center Los Angeles. He holds high-complexity laboratory director and clinical consultant credentials from the American Association of Bioanalysts, has led two reproductive science societies, and sits on the board of the American Society for Reproductive Medicine.
United States 
Gianpiero D. Palermo, M.D.
Professor of Embryology in Obstetrics and Gynecology
Gianpiero Palermo first described ICSI in 1992, the technique that became the most used assisted reproductive technology in the world. He has directed Assisted Fertilization and Andrology at Weill Cornell's CRM since 1993.
United States 
Glenn L. Schattman, M.D.
Reproductive Endocrinologist
Glenn Schattman chaired the SART Practice Committee from 2004 to 2009, writing much of the guideline framework US infertility physicians practice under, and served as SART President in 2011-2012. He focuses on fertility preservation and reproductive surgery.
United States 
Grace W. Graham, D.O.
Reproductive Endocrinologist
Grace Graham, D.O. is a board-certified reproductive endocrinologist at Shady Grove Fertility - Richmond, seeing patients at the Stony Point and Roanoke locations. She trained in OB/GYN at Vanderbilt University Medical Center and completed her REI fellowship at the National Institutes of Health (NIH) in Bethesda, Maryland. Her special interests include egg freezing and oncofertility.
United States 
Grant Schmidt, M.D., Ph.D.
Reproductive Endocrinology & Infertility Specialist
Dr. Grant Schmidt founded Ohio Reproductive Medicine in 1987. He holds both M.D. and Ph.D. (Biochemistry) degrees and is dual board-certified in Reproductive Endocrinology and OB-GYN. He serves as Clinical Assistant Professor at Ohio State University and directs the Division of REI at Riverside Methodist Hospitals.
United States 
Gregory S. Neal, M.D., FACOG
Reproductive Endocrinologist
Dr. Gregory S. Neal is a senior reproductive endocrinologist at Fertility Center of San Antonio, joining the practice in 1999. Trained at Texas A&M University and New York Hospital-Cornell Medical Center, he served as Chief of Reproductive Endocrinology at Wilford Hall Medical Center and brings 30+ years of clinical experience in IVF and infertility care.
United States 
Hadi Ramadan, MD
Reproductive Endocrinologist
Dr. Hadi Ramadan trained at the Jones Institute, birthplace of the first US IVF baby, and was inducted into Alpha Omega Alpha. He researches PCOS, fertility preservation and embryo transfer technique, and consults in Arabic.
United States 
Hajoon Chun, MD
Maternal-Fetal Medicine Specialist
Dr. Hajoon Chun is a maternal-fetal medicine specialist who has directed the maternal-fetal medicine division at Flushing Hospital Medical Center since 2001, seeing more than 10,000 patients a year and performing over 600 amniocenteses. GFG lists him as its collaborating perinatal physician: ABOG-certified in obstetrics and gynecology with a maternal-fetal medicine subspecialty, and a Fellow of ACOG.
United States 
Dr. Hal C. Danzer
Reproductive Endocrinologist
Dr. Hal C. Danzer co-founded Southern California Reproductive Center in 2000. A board- certified reproductive endocrinologist, he focuses on IVF protocol design, egg freezing, and third-party reproduction, and has been recognized among Southern California Super Doctors.
United States Showing 277-287 of 612
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