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Leading Specialists in United States
Reproductive specialists in United States
Raymond Ke
Director of Assisted Reproductive Technology
Raymond Ke runs assisted reproductive technology at Fertility Associates of Memphis and directs andrology at Memphis Fertility Laboratory, Inc. Trained in Canada and at the University of Tennessee, he is board certified in OB/GYN and REI, HCLD-certified by the state and the American Board of Bioanalysts, and the medical director on FAM's SART report.
United States 
Rebecca Chilvers, M.D.
Reproductive Endocrinology & Infertility Specialist
Dr. Rebecca Chilvers is a double board-certified fertility specialist at Fertility Specialists of Texas, based in Frisco. She earned her undergraduate degree at Baylor University and her medical degree at LSU Health Sciences Center, and specializes in IVF, preimplantation genetic testing and fertility preservation through egg freezing. Castle Connolly Top Doctor 2014-2026.
United States 
Rebecca Coman, PA-C, MMS
Physician Assistant
Rebecca Coman, PA-C, MMS is a Physician Assistant at Shady Grove Fertility - Atlanta. She earned her BS in Biology from Wake Forest University and a Master of Medical Science from Arcadia University. Having been an infertility patient herself, she brings deep empathy to her work. She joined SGF in 2021, providing fertility treatment counseling, monitoring and baseline ultrasounds, endometrial biopsies, and mock embryo transfers.
United States 
Reshef Tal, MD, PhD
Reproductive Endocrinologist
Reshef Tal holds an MD and a PhD and works on the uterine side of implantation failure: roughly 40% of good-quality, chromosomally normal embryos never attach, and his lab studies endometrial inflammation and bone marrow-derived stem cells as part of the explanation. He treats recurrent implantation failure and PCOS at Yale Medicine Fertility Center and consults in English and Hebrew.
United States 
Richard J. Paulson, MD, FACOG
Reproductive Endocrinologist
Richard Paulson is a pioneer of assisted reproduction in the United States. Director of USC Fertility since 1986 and USC's REI division chief, he helped deliver the first US birth from a frozen embryo, pioneered low-stimulation and natural-cycle IVF and egg donation for older women, and leads the field's journals.
United States 
Dr. Rifaat D. Salem
Medical Director & Chairman
Dr. Rifaat D. Salem is Medical Director & Chairman of Pacific Reproductive Center. A graduate of USC Medical School with a PhD in Neuroendocrinology from UCLA, he held two NIH fellowships and performed breakthrough research on steroid hormone mechanisms. His clinical training in infertility and microsurgery spans Stanford, the University of British Columbia and the Microsurgical Institute of San Francisco, and he co-founded Pacific Fertility Center Torrance, serving as medical director for six years. He is a member of ACOG and ASRM.
United States 
Rita Sneeringer, MD
Reproductive Endocrinologist
Dr. Rita Sneeringer trained and built her entire career inside Boston IVF, from REI fellowship to Harvard clinical instructor. Her specialty is the endocrine side of infertility: PCOS, amenorrhea, premature ovarian failure and fibroids.
United States 
Riwa Sabbagh, MD
Reproductive Endocrinologist
Dr. Riwa Sabbagh spent two years in Mass General's reproductive genetics lab hunting hypogonadism genes before becoming an IVF physician. At Boston IVF's Concord center she researches embryo quality and thin uterine linings, and consults in four languages.
United States 
Robert Boostanfar, MD, FACOG
Reproductive Endocrinologist
Robert Boostanfar is a board-certified reproductive endocrinologist at HRC Fertility Encino, Westlake Village and Beverly Hills. He was principal investigator of the largest randomized controlled trial of IVF ever published, and a familiar face through national television appearances.
United States 
Robert Greene, MD, FACOG
Reproductive Endocrinologist
Reproductive endocrinologist at Conceptions since 2015 who quantifies a patient's odds at the first visit. Ohio State MD; UCLA-Harbor REI fellowship.
United States 
Robert Gustofson, MD
Reproductive Endocrinologist
Dr. Robert Gustofson joined CCRM Colorado in 2006 after fellowship training in reproductive endocrinology at the National Institutes of Health. He is board certified, certified on the da Vinci robotic surgical system, and publishes on new ovarian stimulation protocols and endometriosis.
United States 
Robert L. Barbieri, MD
Chairman Emeritus, Obstetrics and Gynecology and Reproductive Biology
Dr. Robert L. Barbieri holds the Kate Macy Ladd Distinguished Professorship at Harvard Medical School, is chairman emeritus of Brigham and Women's obstetrics and gynecology, and is credited as author or editor of multiple obstetrics and gynecology textbooks. He practices as a Harvard-trained internist-gynecologist.
United States Showing 505-515 of 612
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