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 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. Jacobo Labastida Torres, MDTulare, CA · No drug or device payments recorded (2025) ·
(559) 686-9097 Dr. Kin Pang, M.D.Tulare, CA · $1,777 in drug and device payments (2025) ·
(559) 786-4993 Dr. Tina Paul, M.D.Tulare, CA · No drug or device payments recorded (2025) ·
(626) 664-9468 Dr. Vasilios Korovilas, M.D.Tulare, CA · No drug or device payments recorded (2025) ·
(559) 665-5531 Dr. Brian Bigelow, MDTurlock, CA · No drug or device payments recorded (2025) ·
(209) 571-8330 Dr. Fatemeh Pazouki, M.DTurlock, CA · $660 in drug and device payments (2025) ·
(925) 324-3226 Dr. Roger Lewis, MDTurlock, CA · $309 in drug and device payments (2025) ·
(209) 634-9034 Dr. Roya Dehkordi, MDTurlock, CA · $318 in drug and device payments (2025) ·
(209) 634-9034 Dr. Mitchell Lew, MDTustin, CA · No drug or device payments recorded (2025) ·
(714) 581-6470 Dr. Robert Borrowdale, M.D.Tustin, CA · $5 in drug and device payments (2025) · Telehealth ·
(714) 665-9890 Dr. Benjamin GroundsTwentynine Palms, CA · No drug or device payments recorded (2025) ·
(760) 830-2117 Dr. Jacob Marshall, MDTwentynine Palms, CA · No drug or device payments recorded (2025) ·
(760) 830-2117 Dr. Kaitlyn Mayer, M.D.Twentynine Palms, CA · $460 in drug and device payments (2025) ·
(760) 830-2117 Dr. John Sanchez, M.D.Ukiah, CA · No drug or device payments recorded (2025) ·
(707) 462-2945 Dr. Karen Crabtree, M.D.Ukiah, CA · No drug or device payments recorded (2025) ·
(707) 468-1010 Dr. Winston Eddy, M.D.Ukiah, CA · No drug or device payments recorded (2025) ·
(707) 462-2945 Dr. Abigail Justiss, MDUnion City, CA · No drug or device payments recorded (2025) ·
(510) 675-4010 Dr. Audrey Toda, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Bennie Brown, MDUnion City, CA · No drug or device payments recorded (2025) ·
(510) 471-5880 Dr. Charlotte Burke, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Harita DevireddyUnion City, CA · No drug or device payments recorded (2025) ·
(510) 675-4010 Dr. James Massengill, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Jennifer Isaacs, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. John Kim, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 471-5880 Dr. Joseph Bachicha, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Patricia Lee, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Silvia Hamilton, MDUnion City, CA · No drug or device payments recorded (2025) ·
(510) 675-4010 Dr. Stephen Young, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Wan Kim, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Winnie Cheung, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Cecilia Phong, MDUpland, CA · No drug or device payments recorded (2025) ·
(909) 579-0806 Dr. Joanna Du, M.D.Upland, CA · $195 in drug and device payments (2025) · Telehealth ·
(909) 579-0806 Dr. Lisa Chong, MDUpland, CA · No drug or device payments recorded (2025) ·
(909) 931-1033 Dr. Monica Valenzuela-gamm, D.O.Upland, CA · $374 in drug and device payments (2025) · Telehealth ·
(909) 355-7855 Dr. Shanta Srivastava, MDUpland, CA · No drug or device payments recorded (2025) ·
(909) 985-0793 Dr. Toni Vu, D.O.Upland, CA · $731 in drug and device payments (2025) · Telehealth ·
(909) 579-0806 Dr. William Mcleod, M.D.Upland, CA · No drug or device payments recorded (2025) ·
(909) 626-7486 Dr. Ashleigh Denny, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 624-3800 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.
- Pregnancy care
- Endometriosis
- Fibroids
- PCOS
- Menopause
- Contraception
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.
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