HealthcareDiscovery.AI / Doctors / California / Obstetrics

Obstetricians in California

Data updated monthly · Last refresh October 2026

173 Obstetrics providers practice in California, including 16 (9%) 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.

173providers
16telehealth
Los Angelestop city

Obstetrics by city in California

Choose a city to see providers there.

Obstetrics in Los Angeles15 providers
Obstetrics in San Francisco9 providers
Obstetrics in San Diego7 providers
Obstetrics in Orange6 providers
Obstetrics in Sacramento6 providers
Obstetrics in Riverside4 providers
Obstetrics in San Jose4 providers
Obstetrics in Torrance4 providers
Obstetrics in Oakland4 providers
Obstetrics in Loma Linda3 providers
Obstetrics in Apple Valley3 providers
Obstetrics in Murrieta3 providers
Obstetrics in Palo Alto3 providers
Obstetrics in Bakersfield3 providers
Obstetrics in Fremont3 providers
Obstetrics in San Luis Obispo3 providers
Obstetrics in Irvine3 providers
Obstetrics in Santa Monica2 providers
Obstetrics in Fresno2 providers
Obstetrics in Roseville2 providers
Obstetrics in Orinda2 providers
Obstetrics in Hayward2 providers
Obstetrics in La Jolla2 providers
Obstetrics in Pomona2 providers

Obstetrics 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. Cynthia Detata, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Jeffrey Faig, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Joanne Nino, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Forrest Smith, M.D.
Pleasanton, CA · No drug or device payments recorded (2025) · (925) 734-0100
Dr. Monica Choo, MD
Pleasanton, CA · $36 in drug and device payments (2025) · Telehealth · (925) 734-3333
Dr. Maggie Pham, D.O.
Pomona, CA · $393 in drug and device payments (2025) · (909) 622-5654
Dr. Robert Lee, D.O.
Pomona, CA · No drug or device payments recorded (2025) · (909) 623-3591
Dr. Brandy Lee
Rancho Cordova, CA · No drug or device payments recorded (2025) · (760) 299-5181
Dr. Jorge Pena, M.D.
Redding, CA · $43 in drug and device payments (2025) · (530) 244-4034
Dr. Christina Bennett-stewart, M.D.
Redlands, CA · No drug or device payments recorded (2025) · (909) 793-3311
Dr. Dorothy Shoup, M.D.
Redwood City, CA · No drug or device payments recorded (2025) · (650) 366-5594
Dr. Clara Chae, M.D
Riverside, CA · $402 in drug and device payments (2025) · (951) 585-1800
Dr. Iheanacho Emeruwa, M.D.
Riverside, CA · No drug or device payments recorded (2025) · Telehealth · (951) 343-3477
Dr. Nayeema Ahmed, M.D.
Riverside, CA · $264 in drug and device payments (2025) · (951) 351-1071
Dr. Paulus Santoso, M.D.
Riverside, CA · $21 in drug and device payments (2025) · (951) 530-8989
Dr. Vinh Vo, DO
Rosemead, CA · No drug or device payments recorded (2025) · (626) 733-8900
Dr. Antoinette Khowong, MEDICAL DOCTOR
Roseville, CA · No drug or device payments recorded (2025) · (916) 782-2229
Dr. Olivia Juhn, MEDICAL DOCTOR
Roseville, CA · No drug or device payments recorded (2025) · (916) 782-2229
Dr. Christine Kim, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-6930
Dr. Dariush Tonkaboni, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 691-1130
Dr. Derek Wong, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 452-6682
Dr. Elena Langdon, MD
Sacramento, CA · $25 in drug and device payments (2025) · (916) 867-7830
Dr. Michael Burman, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 764-6006
Dr. Rebecca Surrey, MD
Sacramento, CA · $238 in drug and device payments (2025) · (916) 734-6978
Dr. Charles Koenig, M.D.
Salinas, CA · No drug or device payments recorded (2025) · (831) 484-9322
Dr. Christina Chirico, M.D.
San Diego, CA · $18 in drug and device payments (2025) · (619) 532-7082
Dr. Craig Saffer, M.D.
San Diego, CA · $139 in drug and device payments (2025) · (858) 277-9378
Dr. Jennifer Tolen, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (180) 029-0500
Dr. Lorine Wilcox, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 952-6778
Dr. Monica Perez
San Diego, CA · No drug or device payments recorded (2025) · (619) 515-2300
Dr. Richard Christie
San Diego, CA · No drug or device payments recorded (2025) · (949) 887-6109
Dr. Stephen Kalkhoff, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 515-2300
Dr. Anju Ranjit, M.D., M.P.H.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 554-3655
Dr. Caitlyn Painter, D.O.
San Francisco, CA · $9,121 in drug and device payments (2025) · Telehealth · (415) 885-7788
Dr. Elizabeth Moy, M.D.
San Francisco, CA · $773 in drug and device payments (2025) · Telehealth · (415) 379-9794
Dr. Fung-yee Chan, M.D.
San Francisco, CA · $438 in drug and device payments (2025) · Telehealth · (415) 379-9823
Dr. Jaclyn Taub, DO
San Francisco, CA · No drug or device payments recorded (2025) · (628) 242-6817
Dr. Joanne Hom, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 379-9600
Dr. Maria Martin, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 328-8402
Dr. Secily Bason-mitchell, M.D.
San Francisco, CA · $598 in drug and device payments (2025) · (415) 379-9600
Dr. Talis Swisher, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-6555
Dr. John Yu, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 998-2242
Dr. Miel Vallejo-brooks, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 885-5550
Dr. Neil Granader, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 297-0227
Dr. Stephen Belton, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 356-9171
Dr. Aaron Kromhout, M.D.
San Luis Obispo, CA · $197 in drug and device payments (2025) · (805) 549-0402
Dr. Dena Tilley, N.P.
San Luis Obispo, CA · $36 in drug and device payments (2025) · (805) 549-0402
Dr. Heidi Freeman, M.D.
San Luis Obispo, CA · No drug or device payments recorded (2025) · (805) 723-2030
Dr. Melinda Lorenson, M.D.
Santa Clara, CA · No drug or device payments recorded (2025) · (408) 851-3148
Dr. Maryam Ardalan, MD
Santa Clarita, CA · $334 in drug and device payments (2025) · Telehealth · (661) 260-1282

Common questions

How many Obstetrics providers are in California?

There are 173 Obstetrics providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Obstetrics providers in California offer telehealth?

Yes. 16 of the 173 Obstetrics providers in California (about 9%) report offering telehealth services in CMS data.

Which cities in California have the most Obstetrics providers?

Los Angeles (15), San Francisco (9), San Diego (7) have the highest concentration of Obstetrics providers in California.

How many Obstetrics providers in California received drug or device company payments?

62 of 173 Obstetrics providers in California (36%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

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 Obstetricians in California work in independent practices or large health systems?

Among 85 Obstetricians in California enrolled in Medicare, 27% bill through a solo or small practice with fewer than 10 clinicians, 21% through a mid-size group of 10 to 99, and 52% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Obstetricians in California work at?

According to CMS facility affiliation records, the California hospitals where the most Obstetricians hold privileges are California Pacific Medical Center- Van Ness Campus in San Francisco; Uci Health-Orange in Orange; Ronald Reagan UCLA Medical Center in Los Angeles.

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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 in California? Get featured.