Fertility Specialists (Reproductive Endocrinologists) in California
Data updated monthly · Last refresh October 2026
271 Reproductive Endocrinology providers practice in California, including 4 (1%) offering telehealth. The largest concentration is in Los Angeles. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
271providers
4telehealth
Los Angelestop city
Reproductive Endocrinology by city in California
Choose a city to see providers there.
Reproductive Endocrinology providers in California
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Karen Durinzi, MDStudio City, CA · No drug or device payments recorded (2025) ·
(182) 167-3758 Dr. Atul Sheth, MDSunnyvale, CA · No drug or device payments recorded (2025) ·
(408) 733-6000 Dr. Esther Chung, MDSunnyvale, CA · $63 in drug and device payments (2025) ·
(919) 684-8111 Dr. Nikhil Joshi, MDSunnyvale, CA · $104 in drug and device payments (2025) ·
(408) 530-6800 Dr. Snunit Ben - Ozer, MDTarzana, CA · No drug or device payments recorded (2025) ·
(818) 344-8522 Dr. Vuk Jovanovic, M.D.Tarzana, CA · $253 in drug and device payments (2025) ·
(818) 344-8522 Dr. Gary Hubert, MDThousand Oaks, CA · $103 in drug and device payments (2025) ·
(805) 778-1122 Dr. Fangyin Meng, M.D., P.H.D, F.A.C.OTorrance, CA · $237 in drug and device payments (2025) ·
(424) 212-4087 Dr. Omid Khorram, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 378-7445 Dr. Shala Salem, M.D.Torrance, CA · $24 in drug and device payments (2025) ·
(310) 376-7000 Dr. Anthony Deangelis, M.D.Vacaville, CA · No drug or device payments recorded (2025) ·
(707) 624-4103 Dr. Joanne Paek, M.D.Vacaville, CA · No drug or device payments recorded (2025) ·
(707) 453-5000 Dr. Navid Navizadeh, MD INCValencia, CA · $567 in drug and device payments (2025) ·
(661) 290-3337 Dr. Clemens Grosskinsky, PHD, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 906-2329 Dr. Thalia Segal, MDWalnut Creek, CA · $168 in drug and device payments (2025) ·
(925) 270-2992 Dr. Tracey Telles, MDWalnut Creek, CA · $122 in drug and device payments (2025) ·
(925) 906-2000 Dr. Michael Feinman, M.D.Westlake Village, CA · No drug or device payments recorded (2025) ·
(805) 374-1737 Dr. Robert Boostanfar, M.D.Westlake Village, CA · $7,376 in drug and device payments (2025) ·
(805) 374-1737 Dr. Billy Yee, M.D.Westminster, CA · No drug or device payments recorded (2025) ·
(714) 702-3001 Dr. Eric Han, M.D.Westminster, CA · $403 in drug and device payments (2025) ·
(714) 702-3000 Dr. Gregory Rosen, M.D.Westminster, CA · $49 in drug and device payments (2025) ·
(714) 702-3000 Common questions
How many Reproductive Endocrinology providers are in California?There are 271 Reproductive Endocrinology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Reproductive Endocrinology providers in California offer telehealth?Yes. 4 of the 271 Reproductive Endocrinology providers in California (about 1%) report offering telehealth services in CMS data.
Which cities in California have the most Reproductive Endocrinology providers?Los Angeles (34), San Francisco (30), San Diego (19) have the highest concentration of Reproductive Endocrinology providers in California.
How many Reproductive Endocrinology providers in California received drug or device company payments?166 of 271 Reproductive Endocrinology providers in California (61%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
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