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Leading Specialists in United States
Reproductive specialists in United States
Ingrid Rodi, MD
Reproductive Endocrinologist
Dr. Ingrid Rodi is a Harbor-UCLA-trained reproductive endocrinologist with three decades of Los Angeles practice, a volunteer faculty appointment at UCLA, and past leadership of the Pacific Coast Reproductive Society. Her practice spans IVF, reproductive surgery, and complex female infertility.
United States 
Irene C. Souter, MD
Reproductive Endocrinologist
Dr. Irene C. Souter directs the preimplantation genetic diagnosis program at the Mass General Fertility Center in Boston and serves as associate director of its reproductive endocrinology fellowship. She treats infertility with IVF, PGT, egg freezing, donor gametes and recurrent pregnancy loss evaluation, and sees patients in English, French, Greek and Spanish.
United States 
Irene Dimitriadis, MD
Reproductive Endocrinologist
Dr. Irene Dimitriadis is medical director of third party reproduction at the Mass General Fertility Center in Boston, running donor egg, donor sperm and gestational carrier programs. She also studies artificial intelligence in embryo assessment and consults in English and Greek at the Boston and Waltham sites.
United States 
Irene Su, M.D., M.S.C.E.
Reproductive Endocrinologist (REI)
Dr. Irene Su is an REI specialist at RPSD who is bilingual in English and Mandarin Chinese. She is a Professor in the Department of Obstetrics, Gynecology and Reproductive Sciences at UC San Diego and the REI Fellowship Program Director. A reproductive epidemiologist, she leads research on reproductive health in young women with cancer and is a recognized expert in fertility preservation and oncofertility.
United States 
Irene Woo, MD, FACOG
Doctor of Medicine
Irene Woo, MD, FACOG is a dual board-certified reproductive endocrinologist at HRC Fertility's Encino and Santa Clarita Valley offices. Penn, Johns Hopkins and USC trained, she works in minimal-stimulation IVF, oncofertility and fertility preservation, and sees patients in English, Cantonese and Mandarin.
United States 
Iris Insogna, MD
Reproductive Endocrinologist
Dr. Iris Insogna pairs a bioethics degree with Harvard residency and fellowship and focuses on LGBTQIA+ family building, donor eggs, gestational carriers and third-party reproduction at Columbia University Fertility Center.
United States 
Iryna Smolen, PA-C
Physician Assistant
Iryna Smolen, PA-C is a nationally certified physician assistant on the reproductive endocrinology team at Cleveland Clinic Fertility Center in Beachwood, Ohio, where she works stimulated cycles alongside the center's reproductive endocrinologists. She holds a master's degree in physician assistant studies from Cleveland State University and takes patients in English, Ukrainian, Russian and Polish.
United States 
Isaac Kligman, M.D.
Professor of Clinical Obstetrics and Gynecology and Clinical Reproductive Medicine, Weill Cornell
Isaac Kligman is a Weill Cornell professor of reproductive medicine known for pioneering work in oocyte vitrification, making egg freezing a reliable option, alongside research on ovarian physiology, ovulation induction and PCOS.
United States 
Isaac E. Sasson, M.D., Ph.D.
Reproductive Endocrinologist
Isaac E. Sasson holds a medical degree and a doctorate in genetics from Yale, trained at Yale-New Haven Hospital and the University of Pennsylvania, and serves as Shady Grove Fertility's Medical Director for Pennsylvania at its Chesterbrook office.
United States 
Isabelle P. Ryan, M.D.
Medical Director, Pacific Fertility Center
Isabelle P. Ryan, MD is the Medical Director of Pacific Fertility Center, the board-certified reproductive endocrinologist who has led the San Francisco practice's clinical team since she joined in 1999. She directs the center's third-party parenting program and its donor egg bank, completed her REI fellowship at UCSF where she pioneered endometriosis research, and has been named a Castle Connolly Top Doctor every year from 2010 through 2026.
United States 
Jackie Ho, MD, MS
Reproductive Endocrinologist
Dr. Jackie Ho ran the Fertility Preservation program as faculty at the University of Southern California before joining Reproductive Partners Medical Group's South Bay campus. She holds a master's in clinical research from USC, published award-winning work on frozen-egg outcomes and noninvasive embryo-quality biomarkers, and is board-certified in both OB/GYN and REI.
United States 
Jacqueline Christine Lee, MD
Medical Doctor
Dr. Jacqueline Lee is a Reproductive Endocrinology & Infertility specialist at Emory Reproductive Center and Assistant Professor at Emory University School of Medicine. She graduated with highest distinction from UNC, trained at Northwestern, and collaborated with the CDC on two AJOG publications. She specializes in infertility and fertility preservation.
United States Showing 301-311 of 612
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