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. Dennise Davis, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 550-4788
Dr. Eduardo Malvin Lacuna, MD
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 524-1211
Dr. Esther Tow-der, M.D.
Modesto, CA · $79 in drug and device payments (2025) · (209) 521-4372
Dr. Fred Adams, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 575-5844
Dr. Fredric Feist, M.D.
Modesto, CA · $29 in drug and device payments (2025) · (209) 556-8762
Dr. Gerald Doersam, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 558-7164
Dr. Hillary Hendryk, M.D.
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 550-4720
Dr. Inna Tarasula, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 735-3108
Dr. James Yip, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 521-4372
Dr. John Pfeffer, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 522-1027
Dr. Jon Pont, M.D.
Modesto, CA · $38 in drug and device payments (2025) · (209) 550-4720
Dr. Joseph Mansour, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 550-4720
Dr. Justin Hutchison, D.O.
Modesto, CA · No drug or device payments recorded (2025) · (209) 735-5000
Dr. Kathy Tom, DO
Modesto, CA · No drug or device payments recorded (2025) · (209) 735-5000
Dr. Kevin Rine, M.D., F.A.C.O.G.
Modesto, CA · No drug or device payments recorded (2025) · (866) 682-4842
Dr. Khary Dorsey, M.D.
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 522-1027
Dr. Larry Erickson, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 550-4720
Dr. Laura Gabriele, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 557-1000
Dr. Laura Stallone, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 576-2845
Dr. Leslie Man-severance, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 557-1000
Dr. Lilian Galicia, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 557-1000
Dr. Lisa Murphy, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 577-5005
Dr. Lloyd Lee, M.D.
Modesto, CA · $115 in drug and device payments (2025) · (866) 682-4842
Dr. Ly Truong, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 557-1000
Dr. Margaret Howe, MD/PHD
Modesto, CA · $39 in drug and device payments (2025) · (209) 576-3643
Dr. Marissa Buendia, DO
Modesto, CA · No drug or device payments recorded (2025) · (209) 550-4720
Dr. Matthew Tilstra, MD
Modesto, CA · $46 in drug and device payments (2025) · (209) 521-4372
Dr. Maud Liva, M.D.
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 524-1211
Dr. Michael Weiner, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 578-0443
Dr. Nicholas Hopkins, MD
Modesto, CA · $87 in drug and device payments (2025) · (209) 521-4372
Dr. Nickey Jafari, MD MPH
Modesto, CA · $38 in drug and device payments (2025) · Telehealth · (209) 550-4720
Dr. Olga Kovalenko, MD
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 550-4720
Dr. Randy Winter, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 522-1027
Dr. Rebecca Brock, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 574-1030
Dr. Robert Altman, MD
Modesto, CA · $38 in drug and device payments (2025) · (209) 550-4788
Dr. Rocio Acera Pozzi, MD
Modesto, CA · $14 in drug and device payments (2025) · (209) 569-7408
Dr. Ronald Weakley, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 525-3883
Dr. Sabrina Hussain, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 579-5628
Dr. Seema Reddy Manchireddy, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 578-1211
Dr. Shabnam Shahrestani, DO
Modesto, CA · $60 in drug and device payments (2025) · Telehealth · (209) 550-4788
Dr. Susan Ways, PHD MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 577-5005
Dr. Tessa Reisinger, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 550-4720
Dr. Valerie Sugiyama, MD
Modesto, CA · $26 in drug and device payments (2025) · Telehealth · (209) 524-1211
Dr. Wilson Sawa, MD
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 524-1211
Dr. Jasmine Fernandez, MD
Monrovia, CA · No drug or device payments recorded (2025) · (888) 499-9303
Dr. Corazon Navarro, MD
Montclair, CA · No drug or device payments recorded (2025) · (909) 625-9063
Dr. Norman Lamberty, M.D.
Montclair, CA · $1,965 in drug and device payments (2025) · (909) 575-0055
Dr. Thomas Lee, M.D.
Montclair, CA · $100 in drug and device payments (2025) · (909) 450-5000
Dr. Hiram Williams, M.D.
Montebello, CA · No drug or device payments recorded (2025) · (323) 720-5505
Dr. Julio Lemus, M.D.
Montebello, CA · $104 in drug and device payments (2025) · (323) 726-0533

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.