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Leading Specialists in United States
Reproductive specialists in United States
Emily Jungheim, MD
Chief of Reproductive Endocrinology and Infertility
Emily Jungheim, MD leads the division of Reproductive Endocrinology and Infertility at Northwestern University, where the REI training program, a high-volume IVF practice and a research enterprise share the same faculty. Loyola Stritch MD, Duke residency, Washington University subspecialty training.
United States 
Emily Lenk Ferrell, MD
Clinical Assistant Professor
Dr. Emily Ferrell is a Clinical Assistant Professor at the University of Michigan Center for Reproductive Medicine, specializing in reproductive endocrinology and infertility.
United States 
Emily Weidenbaum, MD
Reproductive Endocrinologist, NYU Langone Fertility Center; Assistant Content Director for OB-GYN, NYU Grossman School of Medicine
Dr. Emily Weidenbaum is a board-certified OB-GYN specializing in reproductive endocrinology and infertility at NYU Langone Fertility Center. She completed her OB-GYN residency and REI fellowship at NYU Grossman School of Medicine, following her medical degree from Columbia University. Her expertise covers IVF, fertility preservation, menstrual disorders, recurrent pregnancy loss, and LGBTQ+ inclusive care, and she researches AI integration in reproductive care.
United States 
Emre Seli, MD
Reproductive Endocrinologist
Emre Seli directs the IVF program at Yale Medicine Fertility Center and works on embryo selection, including FORTUNE, the machine-learning model his group published for predicting which IVF patients will reach an euploid blastocyst. He treats complex infertility, donor egg and gestational carrier patients, and sees patients in English, French and Turkish.
United States 
Endrika Leon Hinton, MD
Assistant Professor of Gynecology and Obstetrics
Dr. Endrika Leon Hinton is an Assistant Professor of Gynecology and Obstetrics at Johns Hopkins and a reproductive endocrinology specialist. The clinic team page lists 144 patient reviews for her — among the most active clinicians on the team. Patient testimonials highlight her individualized PCOS protocols, alternative approaches for cervical stenosis, and care for complex endometriosis-related infertility.
United States 
Eric Forman, MD, HCLD
Reproductive Endocrinologist
Dr. Eric Forman is both Medical and Laboratory Director of Columbia University Fertility Center, an HCLD-certified physician who publishes on PGT and single-embryo transfer and serves as Associate Editor of Fertility and Sterility.
United States 
Eric Han, MD
Reproductive Endocrinologist
Dr. Eric Han trained at Yale for both residency and his REI fellowship, completing the latter in 2023, and practices at Reproductive Partners Medical Group's Long Beach campus. He is board-certified in obstetrics and gynecology and board-eligible in reproductive endocrinology and infertility, with published work on egg freezing, AMH as a predictor of miscarriage, and cesarean scar defects.
United States 
Eric Surrey, MD
Reproductive Endocrinologist
Dr. Eric Surrey has practiced at CCRM's Colorado sites since 1999, 37 years after training at Penn and UCLA. He has led SART, the Society of Reproductive Surgeons and the Pacific Coast Reproductive Society as president, published more than 125 peer-reviewed papers, and works mainly on endometriosis-related infertility and poor ovarian response.
United States 
Dr. Erica E. Marsh, MD
Chief, Division of Reproductive Endocrinology and Infertility
Dr. Erica Marsh is Chief of the Division of Reproductive Endocrinology and Infertility and Professor of Obstetrics and Gynecology at the University of Michigan — a nationally recognized expert on uterine fibroids, IVF utilization and disparities in fertility care.
United States 
Erika B. Johnston-MacAnanny, M.D.
Reproductive Endocrinologist
Erika Johnston-MacAnanny, M.D., FACOG is a board-certified reproductive endocrinologist at Shady Grove Fertility - Richmond and current President of the ASRM Women's Council. She trained at Cornell University, SUNY Syracuse, Thomas Jefferson University Hospital and the University of Connecticut Health Center. Former Medical Director of the Center for Reproductive Medicine at Wake Forest School of Medicine, she joined SGF in 2018. Castle Connolly Top Doctor for 11 consecutive years (2016-2026).
United States 
Erin O'Brien, MMS, PA-C
Physician Assistant
Erin O'Brien is a physician assistant (PA-C), not a physician, at Shady Grove Fertility, where she performs baseline, monitoring and obstetric ultrasounds, IUI, HSG, saline sonogram and mock embryo transfers, and gynecologic procedures such as endometrial biopsy. She holds a biology degree from Widener University and a Master of Medical Science from Drexel University, did her reproductive endocrinology rotation at Chesterbrook, and joined the practice in January 2026.
United States 
Ernest Zeringue, MD
Medical Director
Dr. Ernest Zeringue is the founder and Medical Director of California IVF Fertility Center, a board-certified reproductive endocrinologist with 22+ years of experience. After a Duke University fellowship and service as Chief of the Infertility Division at Travis Air Force Base, he founded the center in 2004 and holds a UC Davis School of Medicine faculty appointment.
United States Showing 253-263 of 612
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