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. Alexander Thomas
Loma Linda, CA · $37 in drug and device payments (2025) · (909) 651-5510
Dr. Barry Block, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-4771
Dr. Bryan Oshiro, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Ciprian Gheorghe, M.D.
Loma Linda, CA · $2,500 in drug and device payments (2025) · (203) 785-5682
Dr. Clarissa Lew
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-8131
Dr. Courtney Martin, D.O.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-3614
Dr. Crystal Pruitt, MD
Loma Linda, CA · $112 in drug and device payments (2025) · (909) 558-2806
Dr. Danielle Mason, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-4000
Dr. Danielle Sawyer-macknet, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 478-7700
Dr. Elaine Hart, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Elmar Sakala, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Emanuela Christati
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Emerald Caruso, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 799-8620
Dr. Gihan Bareh, M.D.
Loma Linda, CA · $292 in drug and device payments (2025) · (909) 651-5951
Dr. Ilavenil Wilson, M.D.,
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 709-1975
Dr. James Rudolf, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 799-8182
Dr. Jane Yun, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-8131
Dr. Jeffrey Hardesty, M.D.
Loma Linda, CA · $46 in drug and device payments (2025) · Telehealth · (909) 558-2806
Dr. Jessica White, MD
Loma Linda, CA · $35 in drug and device payments (2025) · (909) 558-2840
Dr. Jocelyn Chen-sandoval, MD
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-3614
Dr. John Jacobson, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Joy Kim
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Juthamas Kositsawat
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Karen Gaio Hansberger, MD
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 799-7900
Dr. Karim Toursarkissian, M.D.
Loma Linda, CA · $392 in drug and device payments (2025) · (909) 801-7077
Dr. Kathleen Lau, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · Telehealth · (909) 558-2806
Dr. Kevin Balli, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Kevin Hu
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Kimberly Mcmillan
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-8131
Dr. Kristina Mercado
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Laurel Munson, MD
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 799-7900
Dr. Laurin Cristiano, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Lisa Kairis, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Lorene Cudjoe, DO
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Madison Feng
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Marissa Caballes
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Melissa Nishino, MD
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Michelle Tanzil, D.O
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5534
Dr. Negar Hosseinifar, DO
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Oluwatomisin Bello Adejugba, MD
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Parker Murray, DO
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Peter Leung, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-8131
Dr. Ray Abinader, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (877) 558-6248
Dr. Rebecca Gonzalez, M.D.
Loma Linda, CA · $45 in drug and device payments (2025) · (909) 651-5510
Dr. Ruofan Yao, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5708
Dr. Samira Monavvari, MD
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806
Dr. Sam Siddighi, M.D.
Loma Linda, CA · $224 in drug and device payments (2025) · (909) 651-5951
Dr. Sanaz Amini, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-4000
Dr. Sandy Huynh
Loma Linda, CA · No drug or device payments recorded (2025) · (505) 948-9510
Dr. Stacy Butler, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2806

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.