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. Alton Curtis, MDWoodland, CA · $26 in drug and device payments (2025) ·
(530) 666-1631 Dr. Cathy Jang, MDWoodland, CA · No drug or device payments recorded (2025) ·
(530) 666-1631 Dr. George Wong, MDWoodland, CA · No drug or device payments recorded (2025) ·
(530) 666-1631 Dr. James Mcgibbon, M.D.Woodland, CA · No drug or device payments recorded (2025) ·
(530) 666-3121 Dr. Jay Curkendall, MDWoodland, CA · No drug or device payments recorded (2025) ·
(530) 666-1631 Dr. Joahnna Padilla, MDWoodland, CA · No drug or device payments recorded (2025) ·
(530) 666-1631 Dr. My-le To, D.O.Woodland, CA · No drug or device payments recorded (2025) ·
(530) 668-2600 Dr. Nathaniel Ngo, MDWoodland, CA · $2,929 in drug and device payments (2025) ·
(530) 668-2600 Dr. Peter Koch, M.D.Woodland, CA · No drug or device payments recorded (2025) ·
(530) 666-1631 Dr. Rebecca Arthur, M.DWoodland, CA · $141 in drug and device payments (2025) · Telehealth ·
(530) 668-2600 Dr. Alexander Wong, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Andrea Winnick, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Antero Velez, MDWoodland Hills, CA · $32 in drug and device payments (2025) ·
(818) 310-3293 Dr. Bonnie Maxfield, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Carol Kurz, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Carol Takami, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Ian Taras, MDWoodland Hills, CA · $861 in drug and device payments (2025) ·
(818) 887-0050 Dr. John Medders, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Kameron Poole, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-3440 Dr. Krystle Nagasawa, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2555 Dr. Larry Hess, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Nicole Hausman, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Paul Le Mal, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Richard Lehrfeld, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 234-4430 Dr. Rowona Ng, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Samantha Raad, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(747) 463-9774 Dr. Scott Sanborn, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Stacy Weiss, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Leslie Fung, MDYorba Linda, CA · No drug or device payments recorded (2025) ·
(562) 331-5685 Dr. Vivian Lin, MDYorba Linda, CA · $65 in drug and device payments (2025) ·
(714) 992-5350 Dr. Christal Duncan, MDYreka, CA · No drug or device payments recorded (2025) ·
(530) 842-4337 Dr. Sarah Norris, APRN, WHNP-BC Dr. Aparna Kareti, M.D.Yuba City, CA · $24 in drug and device payments (2025) ·
(530) 749-3500 Dr. Archana Rao, M.D.Yuba City, CA · No drug or device payments recorded (2025) · Telehealth ·
(530) 671-6148 Dr. Bathsheba Wariso, MDYuba City, CA · No drug or device payments recorded (2025) ·
(530) 844-5655 Dr. Bruce Hilger, M.D.Yuba City, CA · No drug or device payments recorded (2025) ·
(530) 749-3585 Dr. Christopher Genobaga, M.D.Yuba City, CA · No drug or device payments recorded (2025) ·
(530) 671-8718 Dr. Daniel Ferguson, M.D.Yuba City, CA · $36 in drug and device payments (2025) ·
(530) 671-8718 Dr. Douglas Tolley, M.D.Yuba City, CA · No drug or device payments recorded (2025) ·
(530) 671-8718 Dr. Gary Bernard, D.OYuba City, CA · $198 in drug and device payments (2025) ·
(530) 671-8718 Dr. Hugo Chan, MDYuba City, CA · No drug or device payments recorded (2025) ·
(530) 671-6148 Dr. Karen Hong, DOYuba City, CA · No drug or device payments recorded (2025) ·
(530) 749-3585 Dr. Maninderjit Atwal, M.D.Yuba City, CA · No drug or device payments recorded (2025) ·
(530) 749-3585 Dr. Maryellen Stemmer, D.O.Yuba City, CA · No drug or device payments recorded (2025) ·
(530) 751-3880 Dr. Megan SpydellYuba City, CA · $24 in drug and device payments (2025) ·
(530) 749-3585 Dr. Mohamad Farhat, MDYuba City, CA · $24 in drug and device payments (2025) ·
(530) 741-1300 Dr. Pallavi Danforth, D.O.Yuba City, CA · $24 in drug and device payments (2025) ·
(530) 749-3585 Dr. Richard Maddalena, M.D.Yuba City, CA · No drug or device payments recorded (2025) ·
(530) 749-3585 Dr. Stanley Nowinski, M.D.Yuba City, CA · No drug or device payments recorded (2025) ·
(530) 749-3585 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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