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. Katherine Blenko, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Kathleen Fujino, MD
San Jose, CA · $17 in drug and device payments (2025) · (408) 254-6337
Dr. Kathryn Barron, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5000
Dr. Kenneth Phan, M.D.
San Jose, CA · $115 in drug and device payments (2025) · (408) 929-2680
Dr. Khoalinh Luong, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5554
Dr. Kim Pham, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 421-1822
Dr. Kristie Sutton, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 523-3870
Dr. Krystle Pham, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Laura Mcclellan, MD
San Jose, CA · $180 in drug and device payments (2025) · (408) 885-5550
Dr. Lelanya Kearns, MD
San Jose, CA · $75 in drug and device payments (2025) · Telehealth · (408) 871-3400
Dr. Lien Pham, MD
San Jose, CA · $125 in drug and device payments (2025) · (408) 254-6337
Dr. Liliana Hamlett, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Lily Nguyen, MD
San Jose, CA · $170 in drug and device payments (2025) · (408) 885-5553
Dr. Linda Tsai, D.O.
San Jose, CA · No drug or device payments recorded (2025) · (408) 357-1462
Dr. Lindsay Kolderup, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Madhur Bhatnagar, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 918-2600
Dr. Margaret Chu, MD
San Jose, CA · $332 in drug and device payments (2025) · (408) 995-3335
Dr. Maria Rodriguez Ballestas, M.D.
San Jose, CA · $25 in drug and device payments (2025) · (408) 523-3870
Dr. Marjorie Bhogal, M.D.
San Jose, CA · No drug or device payments recorded (2025) · Telehealth · (408) 523-3870
Dr. Mark Korkowski, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Mary Schaaf, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Matthew Garabedian, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Melody Besharati, M.D.
San Jose, CA · $21 in drug and device payments (2025) · Telehealth · (408) 885-5000
Dr. Mibhali Bhalala, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Michael Huang, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 984-8488
Dr. Michael Lum, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Michelle Huynh, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5110
Dr. Muhammed Asmer, MD, FRCSC
San Jose, CA · No drug or device payments recorded (2025) · (510) 342-6137
Dr. Nataliya Carlson
San Jose, CA · $52 in drug and device payments (2025) · (408) 729-9700
Dr. Neena Duggal, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Nidhi Jacob, M.D.
San Jose, CA · $180 in drug and device payments (2025) · (408) 523-3870
Dr. Patti Albertson, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Phuong Nguyen, MD
San Jose, CA · $125 in drug and device payments (2025) · (408) 885-5550
Dr. Preete Bhanot, MD
San Jose, CA · $213 in drug and device payments (2025) · (408) 972-7000
Dr. Rae-pei Cherng, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5552
Dr. Reginald Rampaul, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Richard Fischer, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 795-3616
Dr. Richard Sieve, M. D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 515-5440
Dr. Sarah Monahan, MD
San Jose, CA · $50,659 in drug and device payments (2025) · (408) 885-5000
Dr. Sara Noroozkhani, MD
San Jose, CA · $1,613 in drug and device payments (2025) · (408) 885-5000
Dr. Seema Sidhu, MD
San Jose, CA · No drug or device payments recorded (2025) · Telehealth · (408) 972-7000
Dr. Shammah Okai, MD
San Jose, CA · $17 in drug and device payments (2025) · (888) 334-1000
Dr. Shawn Quinlan, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (925) 212-8769
Dr. Shenee Slade, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 972-7000
Dr. Smriti Nalwa, M.D.
San Jose, CA · $241 in drug and device payments (2025) · (732) 977-2764
Dr. Sofia Mahari, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-6300
Dr. Steven Vo, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 288-7100
Dr. Suchada Nopachai, MD
San Jose, CA · $1,058 in drug and device payments (2025) · (408) 972-7000
Dr. Sukyin Anita Sit, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Suresh Nayak, M.D.
San Jose, CA · $1,727 in drug and device payments (2025) · Telehealth · (408) 279-3692

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.