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. George Kevly, M.D.Lancaster, CA · No drug or device payments recorded (2025) ·
(310) 666-3005 Dr. Herminia Amezcua, MDLancaster, CA · $1,011 in drug and device payments (2025) ·
(661) 729-7100 Dr. Jackson Fu, MDLancaster, CA · No drug or device payments recorded (2025) ·
(661) 948-4691 Dr. James Mcmillan, M.D.Lancaster, CA · No drug or device payments recorded (2025) ·
(661) 949-5000 Dr. John Birsner, MDLancaster, CA · No drug or device payments recorded (2025) ·
(661) 943-4236 Dr. Kaitlin Hoff, M.D.Lancaster, CA · No drug or device payments recorded (2025) ·
(661) 729-5516 Dr. Katrina Baker, MDLancaster, CA · $265 in drug and device payments (2025) · Telehealth ·
(661) 948-4691 Dr. Leonard Kurian, MDLancaster, CA · $304 in drug and device payments (2025) ·
(661) 726-7200 Dr. Linda Warren-watson, MDLancaster, CA · No drug or device payments recorded (2025) ·
(661) 723-0270 Dr. Oluwamuyiwa Bolonduro, M.DLancaster, CA · No drug or device payments recorded (2025) ·
(562) 867-7999 Dr. Simona Myers, M.D.Lancaster, CA · No drug or device payments recorded (2025) ·
(661) 723-0270 Dr. Suzanne Chaudhry, M.D.Lancaster, CA · No drug or device payments recorded (2025) ·
(661) 948-1228 Dr. Sang Yoo, M.D.La Palma, CA · No drug or device payments recorded (2025) ·
(714) 523-8556 Dr. Andrea Randall Shih, M.D.La Quinta, CA · No drug or device payments recorded (2025) ·
(760) 610-7300 Dr. Emily Rekuc, D.O.La Quinta, CA · $667 in drug and device payments (2025) ·
(760) 777-4067 Dr. Karen Donley, M.D.La Quinta, CA · No drug or device payments recorded (2025) ·
(760) 610-7220 Dr. Roy Pitkin, M.D.La Quinta, CA · No drug or device payments recorded (2025) ·
(760) 564-6373 Dr. Toni Long, MDLa Quinta, CA · No drug or device payments recorded (2025) ·
(760) 610-7220 Dr. Sally Boero, M.D.Larkspur, CA · $32 in drug and device payments (2025) · Telehealth ·
(415) 924-9770 Dr. Allison Gutierrez, MDLemoore, CA · No drug or device payments recorded (2025) ·
(559) 998-4207 Dr. Lucas Mueller, M.D.Lemoore, CA · No drug or device payments recorded (2025) ·
(559) 998-4207 Dr. Lucila Ortiz-barron, M.D.Lemoore, CA · No drug or device payments recorded (2025) ·
(559) 998-4207 Dr. Tracie Snider, DOLemoore, CA · No drug or device payments recorded (2025) ·
(559) 998-4712 Dr. Heather Catich, MDLincoln, CA · No drug or device payments recorded (2025) ·
(916) 784-4000 Dr. Kelly Robinson, MDLincoln, CA · No drug or device payments recorded (2025) ·
(916) 784-4000 Dr. Matthew Van Der Veen, MDLincoln, CA · No drug or device payments recorded (2025) ·
(916) 784-4000 Dr. Steven Katsuyama, MDLincoln, CA · No drug or device payments recorded (2025) ·
(916) 784-4000 Dr. Charles Taksa, M.D.Lindsay, CA · No drug or device payments recorded (2025) ·
(559) 525-9097 Dr. Jose Salas, M.D.Lindsay, CA · $286 in drug and device payments (2025) ·
(559) 562-1361 Dr. Aditi Bommireddy, MDLivermore, CA · No drug or device payments recorded (2025) ·
(925) 243-2600 Dr. Kimberly Probst, MDLivermore, CA · $43 in drug and device payments (2025) ·
(925) 243-2600 Dr. Maia Sakradse, MDLivermore, CA · $2,263 in drug and device payments (2025) ·
(925) 243-2600 Dr. Michael Bleecker, M.D.Livermore, CA · No drug or device payments recorded (2025) ·
(925) 447-1010 Dr. Nancy Everett, MDLivermore, CA · No drug or device payments recorded (2025) ·
(925) 243-2600 Dr. Vindhya Nagjee, M.D.Livermore, CA · No drug or device payments recorded (2025) ·
(925) 243-2600 Dr. Jenna Heath, MDLivingston, CA · $29 in drug and device payments (2025) ·
(209) 850-3500 Dr. Carol Nakashima, MDLodi, CA · No drug or device payments recorded (2025) ·
(209) 334-3333 Dr. Jacqualin Miller, D.O. Dr. Kimberley Fillmore, MD Dr. Leslie Sackschewsky, MDLodi, CA · No drug or device payments recorded (2025) · Telehealth ·
(209) 334-3333 Dr. Manjeet Bryson, NP RNLodi, CA · No drug or device payments recorded (2025) ·
(209) 334-3343 Dr. Mykenzie Mattheis, DOLodi, CA · No drug or device payments recorded (2025) · Telehealth ·
(209) 334-3333 Dr. Patricia Kennel, M.D.Lodi, CA · $1,846 in drug and device payments (2025) · Telehealth ·
(209) 334-3333 Dr. Peter Yang, M.D.Lodi, CA · No drug or device payments recorded (2025) ·
(209) 334-6593 Dr. Philip Dodd, MDLodi, CA · $20 in drug and device payments (2025) · Telehealth ·
(209) 334-3333 Dr. Robert Howen, MDLodi, CA · No drug or device payments recorded (2025) ·
(209) 334-3333 Dr. Ai-mae Watkins, 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.
- 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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