OB-GYNs in California
Data updated monthly · Last refresh October 2026
5,103 Obstetrics & Gynecology providers practice in California, including 564 (11%) 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.
5,103providers
564telehealth
Los Angelestop city
Obstetrics & Gynecology by city in California
Choose a city to see providers there.
Obstetrics & Gynecology 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. Johanna Dubyak, M.D.Huntington Beach, CA · No drug or device payments recorded (2025) ·
(714) 841-9899 Dr. Kimberly Peirson, M.D.Huntington Beach, CA · No drug or device payments recorded (2025) ·
(714) 722-7619 Dr. Phong Bui, MDHuntington Beach, CA · $347 in drug and device payments (2025) ·
(714) 839-8712 Dr. Robert Herstoff, M.D.Huntington Beach, CA · No drug or device payments recorded (2025) ·
(714) 962-8189 Dr. Sonali Shah, D.O.Huntington Beach, CA · No drug or device payments recorded (2025) ·
(714) 500-0226 Dr. Yen Tran, D.OHuntington Beach, CA · $160 in drug and device payments (2025) ·
(949) 644-2722 Dr. Alodia GirmaHuntington Park, CA · No drug or device payments recorded (2025) ·
(888) 499-9303 Dr. Mayer Mayer, M.D.Huntington Park, CA · $113 in drug and device payments (2025) ·
(323) 582-5444 Dr. Namki Chung, M.D.Huntington Park, CA · No drug or device payments recorded (2025) ·
(323) 581-7229 Dr. Paul Baylon, MDHuntington Park, CA · $573 in drug and device payments (2025) ·
(323) 587-1616 Dr. Zelalem Tesfay, MDHuntington Park, CA · No drug or device payments recorded (2025) ·
(323) 582-9330 Dr. Hamid Zadeh, M.D.Imperial, CA · $251 in drug and device payments (2025) · Telehealth ·
(760) 550-6327 Dr. Benjamin Izsak, MDIndio, CA · No drug or device payments recorded (2025) ·
(760) 342-2295 Dr. David Coy, M.D.Indio, CA · No drug or device payments recorded (2025) ·
(760) 000-0000 Dr. Dennis Roberts, DOIndio, CA · No drug or device payments recorded (2025) ·
(760) 342-6407 Dr. Jacqueline Sevilla, M.D. Dr. Christopher Meilleur, MDInglewood, CA · No drug or device payments recorded (2025) ·
(310) 419-8585 Dr. Gordon Fraser, MDInglewood, CA · No drug or device payments recorded (2025) ·
(323) 752-3327 Dr. Janice Hull, M.D.Inglewood, CA · $16 in drug and device payments (2025) ·
(323) 778-7990 Dr. K N Mbagwu, MDInglewood, CA · No drug or device payments recorded (2025) ·
(310) 672-4881 Dr. Nathana Lurvey, MDInglewood, CA · No drug or device payments recorded (2025) ·
(310) 673-2647 Dr. Vilma Gonzalez-barreto, MDInglewood, CA · No drug or device payments recorded (2025) ·
(310) 419-8585 Dr. Allan David, M.D.Irvine, CA · No drug or device payments recorded (2025) ·
(949) 854-9234 Dr. Catherine Han, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 829-5533 Dr. Cecilia Perez, M.D.Irvine, CA · No drug or device payments recorded (2025) ·
(949) 932-5000 Dr. Donald Murphy, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 854-1223 Dr. Francis Chang, M.D.Irvine, CA · No drug or device payments recorded (2025) ·
(949) 753-7999 Dr. Gloria Wang, M.D.Irvine, CA · No drug or device payments recorded (2025) ·
(949) 932-5000 Dr. Gunjan Bhatnagar, M.D.Irvine, CA · $4,251 in drug and device payments (2025) ·
(949) 559-1099 Dr. James Yang, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 753-7999 Dr. Jennifer Neeper, M.D.Irvine, CA · No drug or device payments recorded (2025) ·
(949) 932-5000 Dr. Jenny Nordin, D.O.Irvine, CA · No drug or device payments recorded (2025) ·
(949) 764-4624 Dr. Jessica Chun, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 829-5533 Dr. Katherine Hom, M. D.Irvine, CA · No drug or device payments recorded (2025) · Telehealth ·
(949) 824-7000 Dr. Manisha Sharma, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 932-5639 Dr. Maryellen Shannon, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 680-1880 Dr. Noah Rodriguez, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 932-5685 Dr. Rachael Postlethwait, MDIrvine, CA · No drug or device payments recorded (2025) ·
(714) 564-4113 Dr. Rebecca Mervis, MDIrvine, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Shahryar Masouem, M.D.Irvine, CA · No drug or device payments recorded (2025) ·
(714) 512-2440 Dr. Tiffany Dote, MDIrvine, CA · No drug or device payments recorded (2025) ·
(714) 644-2381 Conditions Obstetrics & Gynecology providers in California commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Obstetrics & Gynecology providers. Individual practices vary, so confirm with the provider before booking.
- Pregnancy care
- Endometriosis
- Fibroids
- PCOS
- Menopause
- Contraception
Common questions
How many Obstetrics & Gynecology providers are in California?There are 5,103 Obstetrics & Gynecology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Obstetrics & Gynecology providers in California offer telehealth?Yes. 564 of the 5,103 Obstetrics & Gynecology providers in California (about 11%) report offering telehealth services in CMS data.
Which cities in California have the most Obstetrics & Gynecology providers?Los Angeles (380), San Diego (278), San Francisco (249) have the highest concentration of Obstetrics & Gynecology providers in California.
How many Obstetrics & Gynecology providers in California received drug or device company payments?1,864 of 5,103 Obstetrics & Gynecology providers in California (37%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Obstetrics & Gynecology providers in California treat?Obstetrics & Gynecology providers commonly treat pregnancy care, endometriosis, fibroids, PCOS, menopause and related conditions. Individual practices vary, so confirm with the provider before booking.
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.
Do most OB-GYNs in California work in independent practices or large health systems?Among 2,619 OB-GYNs in California enrolled in Medicare, 18% bill through a solo or small practice with fewer than 10 clinicians, 16% through a mid-size group of 10 to 99, and 66% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do OB-GYNs in California work at?According to CMS facility affiliation records, the California hospitals where the most OB-GYNs hold privileges are Hoag Memorial Hospital Presbyterian in Newport Beach; Cedars-Sinai Medical Center in Los Angeles; California Pacific Medical Ctr-Davies Campus Hosp in San Francisco.
Obstetrics & Gynecology in all 50 states Search all 5,103 in the directory Ask Zach for help choosing
Related
