HealthcareDiscovery.AI / Doctors / California / Obstetrics & Gynecology

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 in Los Angeles380 providers
Obstetrics & Gynecology in San Diego278 providers
Obstetrics & Gynecology in San Francisco249 providers
Obstetrics & Gynecology in Sacramento197 providers
Obstetrics & Gynecology in San Jose128 providers
Obstetrics & Gynecology in Oakland100 providers
Obstetrics & Gynecology in Orange81 providers
Obstetrics & Gynecology in Torrance76 providers
Obstetrics & Gynecology in Fresno74 providers
Obstetrics & Gynecology in Bakersfield70 providers
Obstetrics & Gynecology in Riverside69 providers
Obstetrics & Gynecology in La Jolla66 providers
Obstetrics & Gynecology in Long Beach63 providers
Obstetrics & Gynecology in Loma Linda61 providers
Obstetrics & Gynecology in Santa Monica57 providers
Obstetrics & Gynecology in Walnut Creek56 providers
Obstetrics & Gynecology in Anaheim56 providers
Obstetrics & Gynecology in Santa Clara53 providers
Obstetrics & Gynecology in Modesto53 providers
Obstetrics & Gynecology in Mountain View50 providers
Obstetrics & Gynecology in Fontana50 providers
Obstetrics & Gynecology in Fremont49 providers
Obstetrics & Gynecology in Pasadena45 providers
Obstetrics & Gynecology in Roseville45 providers

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. Keith Wilson
Montebello, CA · No drug or device payments recorded (2025) · (714) 478-2253
Dr. Lydia Aguilera, M.D.
Montebello, CA · $420 in drug and device payments (2025) · (323) 721-0690
Dr. Sandra Nieto, MD
Montebello, CA · $161 in drug and device payments (2025) · (323) 786-8333
Dr. William Origel, M.D.
Montebello, CA · $29 in drug and device payments (2025) · (323) 720-1144
Dr. Yu Chen
Montebello, CA · No drug or device payments recorded (2025) · (323) 726-1222
Dr. Zelda Billingy, M.D.
Montebello, CA · No drug or device payments recorded (2025) · (323) 726-0608
Dr. Amy Hjort, MD
Monterey, CA · No drug or device payments recorded (2025) · (831) 582-2100
Dr. Anisha Sarma, D.O.
Monterey, CA · $1,750 in drug and device payments (2025) · (831) 624-3579
Dr. Bradley Keith, MD
Monterey, CA · $20 in drug and device payments (2025) · Telehealth · (831) 649-4202
Dr. Carol Darwish, MD
Monterey, CA · No drug or device payments recorded (2025) · (831) 624-5311
Dr. Daphne Papathomas, M.D.
Monterey, CA · No drug or device payments recorded (2025) · Telehealth · (718) 920-9823
Dr. Donelle Laughlin, MD
Monterey, CA · $343 in drug and device payments (2025) · Telehealth · (831) 649-0175
Dr. Edward Ramirez, MD
Monterey, CA · $142 in drug and device payments (2025) · (831) 649-4483
Dr. Elizabeth Clark, M.D.
Monterey, CA · No drug or device payments recorded (2025) · Telehealth · (831) 624-3579
Dr. Jennifer Zeidberg, M.D.
Monterey, CA · $132 in drug and device payments (2025) · (831) 375-1501
Dr. John Fejes, MD
Monterey, CA · $47 in drug and device payments (2025) · (914) 433-3690
Dr. Mary Kay Brewster, M.D.
Monterey, CA · No drug or device payments recorded (2025) · (831) 649-0111
Dr. Scott Wada, M.D.
Monterey, CA · No drug or device payments recorded (2025) · (831) 620-0700
Dr. Stephen Walker, MD
Monterey, CA · $25 in drug and device payments (2025) · (831) 373-2486
Dr. Tricia Markusen, MD
Monterey, CA · $408 in drug and device payments (2025) · Telehealth · (831) 649-0175
Dr. William Vogelpohl, MD
Monterey, CA · No drug or device payments recorded (2025) · (831) 649-4202
Dr. Charles Chan, M.D.
Monterey Park, CA · $35 in drug and device payments (2025) · (626) 288-8590
Dr. Edward Chen, M.D.
Monterey Park, CA · $79 in drug and device payments (2025) · (626) 288-4218
Dr. George Wang, M.D.
Monterey Park, CA · No drug or device payments recorded (2025) · (323) 266-1100
Dr. Henry Tsai, M.D.
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 571-6631
Dr. Ivy Panoy, NP
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 572-0661
Dr. Jing Lu, M.D
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 281-1198
Dr. Kacey Tanabe
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 572-0661
Dr. Kuan I Wang, MD
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 288-0123
Dr. Michelle Yu, M.D.
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 307-9000
Dr. Thianthong Kompor, MD
Monterey Park, CA · No drug or device payments recorded (2025) · (415) 606-1307
Dr. Tsang-hung Chang, M.D.
Monterey Park, CA · $29 in drug and device payments (2025) · (626) 572-0661
Dr. Van Tran, MD
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 565-3288
Dr. Hans Orup, M.D.
Monte Sereno, CA · No drug or device payments recorded (2025) · (408) 354-7004
Dr. Alicia Cryer, DO
Moreno Valley, CA · $15 in drug and device payments (2025) · (951) 486-4000
Dr. Cassiopeia Rogers
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 801-0975
Dr. Chamika Miles Smith, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 243-0811
Dr. Diwata Hope Bose, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-4548
Dr. Jordan Rossi, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 809-1566
Dr. Karina Vega, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5607
Dr. Maria Acosta De Gonzalez
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-6400
Dr. Sarah Smithson
Moreno Valley, CA · $125 in drug and device payments (2025) · (207) 441-6302
Dr. Sudhakar Dixit, MD
Moreno Valley, CA · $210 in drug and device payments (2025) · (951) 485-9133
Dr. Visith Priromprintr, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 924-1906
Dr. Erik Cohen, M.D.
Morgan Hill, CA · $18 in drug and device payments (2025) · (408) 779-9992
Dr. Amy Teng, D.O.
Mountain View, CA · $370 in drug and device payments (2025) · Telehealth · (650) 396-8110
Dr. Andrea Aslan, MD
Mountain View, CA · $19 in drug and device payments (2025) · (650) 903-3000
Dr. Andrea Forgy, MD
Mountain View, CA · No drug or device payments recorded (2025) · (650) 903-3000
Dr. Anil Singhal, MD
Mountain View, CA · $405 in drug and device payments (2025) · Telehealth · (650) 282-3000
Dr. Atena Asiaii, MD
Mountain View, CA · $209 in drug and device payments (2025) · (650) 694-3870

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.

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

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Obstetrics & Gynecology in California? Get featured.