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. Bruce Filarsky, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 453-5000 Dr. Camille Barnes, M.D.Vacaville, CA · $17 in drug and device payments (2025) ·
(707) 427-4900 Dr. Elena Fuell Wysong, MDVacaville, CA · $25 in drug and device payments (2025) ·
(707) 427-4900 Dr. Gary Matsumura, M.D.Vacaville, CA · No drug or device payments recorded (2025) ·
(707) 454-5800 Dr. Hang Claus, M.D.Vacaville, CA · No drug or device payments recorded (2025) ·
(707) 624-4000 Dr. Homa Karimi-noori, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 624-4000 Dr. James Hanser, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 453-5000 Dr. Jonathan Snook, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 453-5000 Dr. Lynne Hollison, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 453-5000 Dr. Michelle Contreras, M.D.Vacaville, CA · $182 in drug and device payments (2025) ·
(707) 427-4900 Dr. Nina Nguyen, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 624-4000 Dr. Tanisha Silas-young, MDVacaville, CA · No drug or device payments recorded (2025) ·
(707) 624-2828 Dr. Thomas Brown, DOVacaville, CA · No drug or device payments recorded (2025) ·
(707) 453-5000 Dr. Ajit Kittur, MDValencia, CA · No drug or device payments recorded (2025) ·
(661) 424-8848 Dr. Alyssa Zackler, M.D.Valencia, CA · $56 in drug and device payments (2025) ·
(661) 481-2400 Dr. Carolyn Phillips, M.DValencia, CA · No drug or device payments recorded (2025) ·
(661) 481-2400 Dr. Cecelia Hann, M.D.Valencia, CA · No drug or device payments recorded (2025) ·
(661) 259-1781 Dr. Courtenay Poucher, MDValencia, CA · No drug or device payments recorded (2025) ·
(661) 312-0497 Dr. David Nguyen, MD.Valencia, CA · No drug or device payments recorded (2025) ·
(661) 424-8848 Dr. Frances Yuan, MD.Valencia, CA · No drug or device payments recorded (2025) ·
(661) 424-8848 Dr. James Creighton, M.D.Valencia, CA · No drug or device payments recorded (2025) ·
(661) 254-4012 Dr. Jessica Murphy, M.D.Valencia, CA · No drug or device payments recorded (2025) ·
(661) 481-2440 Dr. Miin Tzeng, MDValencia, CA · No drug or device payments recorded (2025) ·
(661) 290-3337 Dr. Nicholas Tuso, M.D.Valencia, CA · No drug or device payments recorded (2025) ·
(661) 424-8848 Dr. Rachel Long, MDValencia, CA · $413 in drug and device payments (2025) ·
(661) 290-3337 Dr. Roscoe Marter, MD.Valencia, CA · $240 in drug and device payments (2025) ·
(661) 424-8848 Dr. Samia Jaffar, MDValencia, CA · No drug or device payments recorded (2025) ·
(661) 481-2400 Dr. Anahita Bunce, MDVallejo, CA · No drug or device payments recorded (2025) ·
(415) 305-5105 Dr. Christine Gorey, D.OVallejo, CA · No drug or device payments recorded (2025) ·
(707) 330-3027 Dr. Danielle Foldvary, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Diane Kelley, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Emily Mohebali, M.D, M.P.H.Vallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-2538 Dr. James Sakamoto, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Jody Daudel, MDVallejo, CA · No drug or device payments recorded (2025) · Telehealth ·
(707) 645-7316 Dr. Jordanne Ford, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Karen Vournas, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Linda Lewis, MDVallejo, CA · $2,055 in drug and device payments (2025) ·
(707) 651-1000 Dr. Madeline Smith, MDVallejo, CA · No drug or device payments recorded (2025) · Telehealth ·
(215) 360-7096 Dr. Nancy Goler, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Neha Kamdar, M.D.Vallejo, CA · No drug or device payments recorded (2025) ·
(608) 263-0572 Dr. Nicole Buscaglia, MDVallejo, CA · No drug or device payments recorded (2025) · Telehealth ·
(707) 651-1000 Dr. Peter Coffin, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Ruth Goldenberg, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Sarah Mccarthy, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Sarah Smith, D.O.Vallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1031 Dr. Sharlene Sanidad, M.D.Vallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1031 Dr. Stella Huang, D.O.Vallejo, CA · $910 in drug and device payments (2025) · Telehealth ·
(707) 427-4900 Dr. Tamy Brown, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Teresa Jensen, M.D.Vallejo, CA · No drug or device payments recorded (2025) ·
(707) 333-5059 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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