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. Teresa Wray, MD
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3910
Dr. Tricia Fynewever, MD
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3910
Dr. Yarameekah Adams, MD
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3910
Dr. Grace Fritts
Foothill Ranch, CA · No drug or device payments recorded (2025) · (949) 829-5533
Dr. Karenna Dickerson, MD
Foothill Ranch, CA · $62 in drug and device payments (2025) · (949) 829-5533
Dr. Dane Winkelman
Forest Falls, CA · No drug or device payments recorded (2025) · (909) 208-0930
Dr. Brad Dolinsky, MD
Fort Irwin, CA · No drug or device payments recorded (2025) · (760) 380-4048
Dr. Emily Pierce, MD
Fort Irwin, CA · No drug or device payments recorded (2025) · (866) 957-9224
Dr. Logan Eckhardt, MD
Fort Irwin, CA · No drug or device payments recorded (2025) · (760) 383-5289
Dr. James Anderson, M.D.
Fortuna, CA · No drug or device payments recorded (2025) · (707) 725-0618
Dr. Kristy Wolff, M.D.
Fortuna, CA · No drug or device payments recorded (2025) · (707) 725-6108
Dr. Carol Levi, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 378-7000
Dr. Cynthia Cork, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · Telehealth · (714) 556-0536
Dr. Debi Lambert, NP
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 378-5606
Dr. Eleanor Hawkins, M.D.
Fountain Valley, CA · $20 in drug and device payments (2025) · (714) 378-5606
Dr. Ellen Fraser, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · Telehealth · (714) 556-0108
Dr. Erica Dickson, DO
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 210-5665
Dr. Gerardo Bustillo, M.D.
Fountain Valley, CA · $19 in drug and device payments (2025) · (657) 241-9090
Dr. G. Thomas Ruiz, MD
Fountain Valley, CA · $35 in drug and device payments (2025) · (657) 241-9090
Dr. Hiep Truong, M.D.
Fountain Valley, CA · $187 in drug and device payments (2025) · (714) 546-6575
Dr. Jamie Kim, M.D.
Fountain Valley, CA · $523 in drug and device payments (2025) · (714) 848-2383
Dr. Jeanne Nwagwu, DO
Fountain Valley, CA · $177 in drug and device payments (2025) · (657) 241-9090
Dr. Kendra Perkins, D.O.
Fountain Valley, CA · $156 in drug and device payments (2025) · (714) 513-1399
Dr. Kevin Khai Tieu, MD
Fountain Valley, CA · $2,219 in drug and device payments (2025) · (714) 418-9749
Dr. Krystal Pham, MD
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 486-1228
Dr. Lena Nguyen, DO
Fountain Valley, CA · $956 in drug and device payments (2025) · Telehealth · (657) 241-9090
Dr. Michael Vizcarra, M.D.
Fountain Valley, CA · $43 in drug and device payments (2025) · (714) 556-0536
Dr. Michael Wan, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 546-6600
Dr. Minal Mehta, M.D.
Fountain Valley, CA · $243 in drug and device payments (2025) · (714) 848-2383
Dr. Salman Okour, M.D
Fountain Valley, CA · $8,472 in drug and device payments (2025) · (657) 356-1281
Dr. Shahnaz Shaikh, M.D., F.R.C.O.G.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 662-2633
Dr. Stephen Torday, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 434-4777
Dr. Sunita Moola, MD
Fountain Valley, CA · No drug or device payments recorded (2025) · (512) 639-7210
Dr. Triet Le, D.O
Fountain Valley, CA · $138 in drug and device payments (2025) · (714) 418-9749
Dr. Trisha Chaudhury, DO
Fountain Valley, CA · No drug or device payments recorded (2025) · (657) 241-9090
Dr. Diana Tran-kim, D.O.
Fountain Vly, CA · $433 in drug and device payments (2025) · (714) 210-5665
Dr. Dennis Chamberlain, MD
Freedom, CA · No drug or device payments recorded (2025) · (831) 722-2473
Dr. Maria Granthom, MD
Freedom, CA · No drug or device payments recorded (2025) · (831) 728-1489
Dr. Agata Kosmalska, MD
Fremont, CA · No drug or device payments recorded (2025) · (510) 248-3000
Dr. Ai Li, MD
Fremont, CA · No drug or device payments recorded (2025) · (510) 795-3000
Dr. Albert Brooks, M.D.
Fremont, CA · No drug or device payments recorded (2025) · (510) 795-2026
Dr. Alison Slack, M.D.
Fremont, CA · No drug or device payments recorded (2025) · (510) 796-7057
Dr. Anjali Sahai, M.D.
Fremont, CA · $33 in drug and device payments (2025) · (510) 248-1000
Dr. Christina Wong, MD
Fremont, CA · No drug or device payments recorded (2025) · (510) 796-7057
Dr. Chunhua Liu, MD
Fremont, CA · No drug or device payments recorded (2025) · (510) 795-3000
Dr. Craig Johnson, MD
Fremont, CA · No drug or device payments recorded (2025) · (510) 490-1222
Dr. David Newhouse, MD
Fremont, CA · $28 in drug and device payments (2025) · (510) 795-3000
Dr. Demetra Burrs, M.D.
Fremont, CA · No drug or device payments recorded (2025) · (510) 490-1222
Dr. Diana Lo, M.D.
Fremont, CA · No drug or device payments recorded (2025) · (510) 490-1222
Dr. Elena Vinopal, MD
Fremont, CA · No drug or device payments recorded (2025) · (510) 498-2182

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.