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. Douglas Woelkers, M.D.
La Jolla, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. William Deschner, M.D.
Lake Arrowhead, CA · No drug or device payments recorded (2025) · (909) 336-2156
Dr. James Schaefer, MD
La Mesa, CA · No drug or device payments recorded (2025) · (619) 463-3363
Dr. Laura Martinez
Lancaster, CA · No drug or device payments recorded (2025) · (661) 941-9543
Dr. Scott Eaton, M.D.
Livermore, CA · No drug or device payments recorded (2025) · (925) 447-1010
Dr. Delilah Garcia-kearney, NP
Loma Linda, CA · No drug or device payments recorded (2025) · (877) 558-6248
Dr. Ivan Rybkin, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 651-5510
Dr. Phong Lai, D.O.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-4000
Dr. Vanessa Kaleb, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 595-7709
Dr. Leslie Gonzalez, M.D.
Los Alamitos, CA · $141 in drug and device payments (2025) · (562) 296-5232
Dr. Angela Chen, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 794-8282
Dr. Christina Jung, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-1981
Dr. Georgina Makabali, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 389-9898
Dr. Halina Yee
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-7274
Dr. Hasti Poya, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-1430
Dr. Johnathan Zhao
Los Angeles, CA · $353 in drug and device payments (2025) · (833) 574-2273
Dr. Joslyn Gumbs, MD
Los Angeles, CA · $47 in drug and device payments (2025) · (323) 257-1814
Dr. Kristopher Waring, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-1430
Dr. Pablito Tancinco
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 413-2280
Dr. Paluk Walia
Los Angeles, CA · $502 in drug and device payments (2025) · Telehealth · (310) 385-3380
Dr. Pamela Jean Boyer, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 208-4492
Dr. Rimsha Ahmed, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-7274
Dr. Sacha Lewis, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (800) 954-8000
Dr. Sarah Miller, RN, ICEA, CLEC
Los Angeles, CA · No drug or device payments recorded (2025) · (701) 429-0423
Dr. Yen Chan, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-3416
Dr. Sharon Buzi, M.D.
Los Gatos, CA · No drug or device payments recorded (2025) · Telehealth · (408) 356-0431
Dr. Karol Bowens
Lynwood, CA · $349 in drug and device payments (2025) · (310) 631-4445
Dr. Charles Ugwu-oju, M.D.
Madera, CA · No drug or device payments recorded (2025) · (559) 664-4000
Dr. Kaitlin Elsenheimer, M.D.
Martinez, CA · No drug or device payments recorded (2025) · (925) 370-5000
Dr. Andrea Bowen, MD
Milpitas, CA · No drug or device payments recorded (2025) · (408) 945-2933
Dr. Vidya Mhamunkar, MD
Mountain View, CA · No drug or device payments recorded (2025) · (877) 376-2496
Dr. Emily Thomson, D.O.
Murrieta, CA · $93 in drug and device payments (2025) · (951) 677-4748
Dr. Joan Hazel Calinisan, MD
Murrieta, CA · $355 in drug and device payments (2025) · (951) 894-4436
Dr. Martina Chiodi, M.D.
Murrieta, CA · $53 in drug and device payments (2025) · (951) 461-2229
Dr. Michael Thesing, MD
National City, CA · No drug or device payments recorded (2025) · (619) 267-8313
Dr. Alexander Deyan, MD
Newport Beach, CA · No drug or device payments recorded (2025) · (949) 720-9848
Dr. Amal Malek
Newport Beach, CA · No drug or device payments recorded (2025) · (949) 644-1255
Dr. Hsiu Li Cheng, CNM, RN
Oakland, CA · $29 in drug and device payments (2025) · (510) 271-5330
Dr. Julia Crothers, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-7772
Dr. Leon Richmond, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 271-5330
Dr. Maryam Sadighi, MD
Oakland, CA · No drug or device payments recorded (2025) · (650) 533-8078
Dr. Ana Sanchez, M.D.
Orange, CA · $171 in drug and device payments (2025) · (714) 712-7373
Dr. Cortney Eakin, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7733
Dr. Griselda Reyes, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8224
Dr. Jennifer Butler, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7733
Dr. Laura Fitzmaurice, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 456-6707
Dr. Stephanie Warsheski, M.D.
Orange, CA · $99 in drug and device payments (2025) · (714) 456-7733
Dr. Evan Rosenbluth, M.D.
Orinda, CA · $52 in drug and device payments (2025) · (925) 973-5802
Dr. Tiffany Perry, M.D.
Orinda, CA · $668 in drug and device payments (2025) · Telehealth · (925) 254-9840
Dr. Alyssa Van Dyk, M.D.
Palm Springs, CA · No drug or device payments recorded (2025) · (847) 400-4252

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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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 in California? Get featured.