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. Barry Brummer, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 523-3870
Dr. Camilla Guitarte, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-6633
Dr. Carol Somersille, MD
San Jose, CA · $26 in drug and device payments (2025) · Telehealth · (408) 278-0200
Dr. Carolyn Kerr, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Carrie Li, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 523-3870
Dr. Celia Mercado, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-6202
Dr. Cheryl Pan, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Christopher Mele, MD
San Jose, CA · $28 in drug and device payments (2025) · (408) 918-2618
Dr. Corey Young, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5000
Dr. Dai Kim, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (650) 279-2455
Dr. Dale Capulong, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 259-3803
Dr. Dan-anh Nguyen, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 993-8071
Dr. Danny Wolfe, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Deborah Wachs, M.D.
San Jose, CA · $145 in drug and device payments (2025) · (925) 867-1800
Dr. Dennis Hou, MD
San Jose, CA · $327 in drug and device payments (2025) · (408) 972-7000
Dr. Diana Aung, M.D.
San Jose, CA · $379 in drug and device payments (2025) · (408) 523-3870
Dr. Dung Cai, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 294-5115
Dr. Eduardo Vergara, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 294-1420
Dr. Esther Yun, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 523-3870
Dr. Evelyn Nunez, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Farsam Azad, MD
San Jose, CA · $900 in drug and device payments (2025) · Telehealth · (408) 523-3870
Dr. Frederick Hopkins, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 272-9244
Dr. Hao Nguyen, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 523-3870
Dr. Heidi Olander, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Helen Fu, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5000
Dr. Hsin-pei Liu, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 918-2600
Dr. Hung Ninh, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 531-9735
Dr. Hyunkyo Park, M.D
San Jose, CA · No drug or device payments recorded (2025) · (408) 260-3900
Dr. Ilene Newman, M.D.
San Jose, CA · $5 in drug and device payments (2025) · Telehealth · (408) 871-3400
Dr. Ingrid Aalami, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Ingrid Bossen, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Irene Cheng
San Jose, CA · No drug or device payments recorded (2025) · (408) 978-9319
Dr. Iris Colon, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Jacqueline Lou, MD
San Jose, CA · $32 in drug and device payments (2025) · (510) 859-4717
Dr. James Lindsey, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Jana Mannan, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Jan Segnitz, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 238-9279
Dr. Jennifer Domingo-mihalko, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Jennifer Mcgullam, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5000
Dr. Jenny Dai Biller, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Jessica Li, MD
San Jose, CA · $180 in drug and device payments (2025) · Telehealth · (408) 523-3870
Dr. Jeyling Chou
San Jose, CA · No drug or device payments recorded (2025) · Telehealth · (408) 523-3870
Dr. Jim Hur, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 357-1480
Dr. Joann Laiprasert-tantisira
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5552
Dr. Jonathan Weiner, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Joseph Derrough, MD
San Jose, CA · $271 in drug and device payments (2025) · (408) 972-7000
Dr. Julie Najar, MD
San Jose, CA · $1,540 in drug and device payments (2025) · (408) 523-3870
Dr. Kambiz Zand, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 281-2222
Dr. Karen Garcia, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Karen Kohut, M.D.
San Jose, CA · $310 in drug and device payments (2025) · (408) 258-3724

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.