'%20d='m0%200%2016%2011h61%2061%2061%2061%2060L47%2037h61%2061%2060%2061L16%2063h61%2061%2061%2061%2060L47%2089h61%2061%2060%2061L16%20115h61%2061%2061%2061%2060L47%20141h61%2061%2060%2061L16%20166h61%2061%2061%2061%2060L47%20192h61%2061%2060%2061L16%20218h61%2061%2061%2061%2060z'/%3e%3c/svg%3e)
Leading Specialists in United States
Reproductive specialists in United States
Hanh Nguyen Cottrell, MD
Clinical Assistant Professor
Dr. Hanh N. Cottrell is a board-certified reproductive endocrinologist at the University of Michigan Center for Reproductive Medicine, specializing in infertility, IVF, PCOS, and endometriosis.
United States 
Hannah Moon, M.M.S., P.A.-C
Physician Assistant
Hannah Moon, M.M.S., P.A.-C is a physician assistant at Shady Grove Fertility - Richmond (Stony Point location). She earned her Bachelor of Science in Human Nutrition, Foods and Exercise at Virginia Tech and her Master of Medical Science in Physician Assistant Studies at Charleston Southern University. She joined SGF in 2021, performing IUI, HSG, endometrial biopsies, mock embryo transfers and fertility treatment counseling.
United States 
Harry Hatasaka, MD
Reproductive Endocrinology and Infertility Specialist
Dr. Harry Hatasaka is a board-certified reproductive endocrinology and infertility (REI) specialist at California IVF Fertility Center, with a UC Davis School of Medicine faculty appointment. He focuses on female infertility and systematic evaluation and treatment of recurrent pregnancy loss, with extensive clinical and research experience in reproductive medicine.
United States 
Heather Hipp, MD
Medical Doctor
Dr. Heather Hipp is an Associate Professor at Emory University School of Medicine and Program Director of the REI fellowship. She specializes in IVF, fertility preservation, and fragile X premutation carriers at risk of primary ovarian insufficiency. She chairs the ASRM Education Committee and serves on the National Fragile X Foundation Scientific and Clinical Advisory Committee.
United States 
Heather Sue Hoff, MD
Medical Doctor
Dr. Heather Hoff is a Reproductive Endocrinology & Infertility specialist at Emory Reproductive Center and Assistant Professor at Emory University School of Medicine. Trained at Mayo Clinic and UNC Chapel Hill, she specializes in IVF, IUI, fertility preservation, and reproductive endocrine disorders such as PCOS.
United States 
Helen Kim, MD
Reproductive Endocrinologist
Helen Kim, MD directs third-party reproduction at Northwestern Medicine in Chicago — donor egg, donor sperm and gestational carrier cycles — after a lifetime of Harvard-affiliated training.
United States 
Hey-Joo Kang, M.D.
Reproductive Endocrinologist
Hey-Joo Kang has treated infertility at Weill Cornell's CRM since completing her fellowship there, with focused experience in PCOS, recurrent pregnancy loss and endometriosis, and patient visits in English and Korean.
United States 
Dr. Holly Mehr
Reproductive Endocrinology and Infertility (REI) Specialist
Dr. Holly Mehr is the surgeon on FSAC's physician team: fellowship-trained in minimally invasive gynecologic surgery at Boston's Lahey Clinic and in reproductive endocrinology at UCLA, double board-certified, and holder of the Society of Laparoscopic Surgeons award. She also teaches — an MSEd and years as a New York public school teacher sit behind her patient counseling.
United States 
Howard A. Zacur, MD
Professor of Gynecology and Obstetrics
Dr. Howard A. Zacur is a Professor of Gynecology and Obstetrics at Johns Hopkins and a reproductive endocrinology and infertility specialist — one of the most senior physicians on the fertility center team. He provides comprehensive fertility care, from evaluation to IVF, at the Johns Hopkins Fertility Center in Lutherville, Maryland.
United States 
Howard Li, MD, FACOG
Reproductive Endocrinology and Infertility Fellow, National Institutes of Health
Howard Li, MD, FACOG is an NIH-based reproductive endocrinology fellow joining HRC Fertility's San Francisco office in 2026. Harvard Medical School trained with residency at Yale-New Haven, he works on chronic pelvic pain, reproductive psychiatry, uterine factor infertility and the biology behind diminished ovarian reserve.
United States 
Hugh Taylor, MD
Reproductive Endocrinologist
Hugh Taylor chairs Yale's obstetrics and gynecology department and treats the two problems that stop IVF working in his patients: endometriosis and a uterine lining that will not accept an embryo. Elected to the National Academy of Medicine in 2016, president of the American Society for Reproductive Medicine in 2020-2021, and continuously NIH-funded for more than 20 years.
United States 
Ido Feferkorn, M.D.
Reproductive Endocrinology & Infertility Specialist
Ido Feferkorn is a reproductive endocrinology and fertility specialist at The Reproductive Medicine Group, who joined in 2024. He trained in Israel and Canada, earning his medical degree summa cum laude from the Technion and completing his reproductive fellowship at McGill University Health Centre, and is a sub-specialty affiliate of the Royal College of Physicians and Surgeons of Canada. He treats infertility, PCOS, endometriosis and recurrent pregnancy loss, with a focus on fertility preservation and LGBTQ+ family building, at the Wesley Chapel and Brandon offices.
United States Showing 289-299 of 612
Ready to start your fertility journey?
Get a personalized plan from our medical advisors