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. Emily Birenbaum, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (888) 731-8994
Dr. Erika Balassiano, MD
Palo Alto, CA · $129 in drug and device payments (2025) · (650) 327-8778
Dr. Fatemeh Parsian, MD
Palo Alto, CA · No drug or device payments recorded (2025) · Telehealth · (650) 853-2917
Dr. Gayathree Murugappan, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (248) 765-4145
Dr. Jagdip Powar, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 721-6060
Dr. Jaime Ocampo, M.D.
Palo Alto, CA · $20 in drug and device payments (2025) · (650) 327-8778
Dr. Jenny Mei, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Jill Anderson
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 853-3355
Dr. Justin Thompson, MD
Palo Alto, CA · $125 in drug and device payments (2025) · (650) 497-8000
Dr. Kathryn Lannin, MD
Palo Alto, CA · $133 in drug and device payments (2025) · Telehealth · (650) 497-8000
Dr. Kevin Petersen, MD, MPH
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 498-7570
Dr. Kristen Matsik, MD
Palo Alto, CA · $188 in drug and device payments (2025) · (888) 731-8994
Dr. Leslie Chan, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Libby Szeto, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Lisa Goldthwaite, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 725-6079
Dr. Lynn Gretkowski, MD
Palo Alto, CA · $21 in drug and device payments (2025) · (415) 663-5584
Dr. Madeleine Lemyre, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 327-8778
Dr. Mary Parman, DO
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 321-4121
Dr. Michelle Solone, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 498-5280
Dr. Nancy Mason, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 329-1293
Dr. Natalie Spach, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Nichole Young-lin, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Pamela Meza, MD
Palo Alto, CA · $9 in drug and device payments (2025) · (650) 497-8000
Dr. Ruth Crystal, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 858-6800
Dr. Simranvir Kaur, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Thomas Moran, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (619) 510-7267
Dr. Virginia Chan, D.O.
Palo Alto, CA · $147 in drug and device payments (2025) · (650) 723-4000
Dr. Winona Tan, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · Telehealth · (650) 853-2917
Dr. Marshall Hall, M.D.
Palo Cedro, CA · No drug or device payments recorded (2025) · (530) 549-3201
Dr. Michael Jones, M.D.
Palos Verdes Estates, CA · $4 in drug and device payments (2025) · (408) 918-2600
Dr. Parissa Moradi, M.D.
Palos Verdes Estates, CA · $1,017 in drug and device payments (2025) · (310) 544-6318
Dr. Arthur Fleisher, M.D.
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Atsuko Haruyama, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Beatriz Rodriguez, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Benjamin Hakakha, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Carlos Flores, MD.
Panorama City, CA · No drug or device payments recorded (2025) · (818) 785-7300
Dr. Caroline Solomon, M.D.
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Fariborz Mazdisnian, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. James Folz, M.D.
Panorama City, CA · No drug or device payments recorded (2025) · (818) 323-0011
Dr. Jill Hughes, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Jisun Ryoo, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Kamrooz Tabibzadeh, M.D.
Panorama City, CA · $42 in drug and device payments (2025) · (818) 894-8080
Dr. Kathleen Metcalf, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Kimi Tamura, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Lawrence Burden, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Madeleine Ortega, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Marsha Berkeley, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Michael Hakakha, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Mor Tzadik, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Murali Srinivasan, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000

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.