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Emergency Medicine Doctors in California

Data updated monthly · Last refresh October 2026

7,777 Emergency Medicine providers practice in California, including 234 (3%) 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.

7,777providers
234telehealth
Los Angelestop city

Emergency Medicine by city in California

Choose a city to see providers there.

Emergency Medicine in Los Angeles630 providers
Emergency Medicine in San Diego496 providers
Emergency Medicine in Sacramento371 providers
Emergency Medicine in San Francisco291 providers
Emergency Medicine in Oakland251 providers
Emergency Medicine in Fresno229 providers
Emergency Medicine in Torrance196 providers
Emergency Medicine in Orange179 providers
Emergency Medicine in Loma Linda169 providers
Emergency Medicine in Stanford164 providers
Emergency Medicine in Bakersfield117 providers
Emergency Medicine in San Jose114 providers
Emergency Medicine in Colton109 providers
Emergency Medicine in Riverside104 providers
Emergency Medicine in Walnut Creek97 providers
Emergency Medicine in Rancho Mirage76 providers
Emergency Medicine in Visalia73 providers
Emergency Medicine in Long Beach69 providers
Emergency Medicine in Modesto68 providers
Emergency Medicine in Santa Rosa64 providers
Emergency Medicine in Palm Springs63 providers
Emergency Medicine in San Leandro59 providers
Emergency Medicine in La Jolla59 providers
Emergency Medicine in Anaheim58 providers

Emergency Medicine 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. Megan Leung, M.D
San Francisco, CA · $271 in drug and device payments (2025) · Telehealth · (415) 994-6475
Dr. Meghan Hewlett, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-1529
Dr. Melanie Molina, MD, MAS
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1037
Dr. Michael Bogner, MD
San Francisco, CA · No drug or device payments recorded (2025) · (330) 493-4443
Dr. Michael Burg, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1634
Dr. Michael Callaham, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1885
Dr. Michael Ching, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 706-1957
Dr. Michael Clery, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1238
Dr. Michael O'connor, MD
San Francisco, CA · No drug or device payments recorded (2025) · (330) 493-4443
Dr. Michael Rokeach, MD
San Francisco, CA · No drug or device payments recorded (2025) · (209) 342-2300
Dr. Michael Shafer, MD
San Francisco, CA · No drug or device payments recorded (2025) · (330) 493-4443
Dr. Michael Shelendich
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-8388
Dr. Michelle Lin, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5753
Dr. Morgan Carlile, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1238
Dr. Nabiha Nuruzzaman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1238
Dr. Nana Yaa Misa, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1238
Dr. Natalia Osipchuk
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-1037
Dr. Natalie Hernandez, MD
San Francisco, CA · $138 in drug and device payments (2025) · (415) 353-1238
Dr. Natalie Snyder, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1529
Dr. Nathaniel West, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-5753
Dr. Nathan Teismann, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 609-8195
Dr. Neda Farzan, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-4810
Dr. Neha Amin
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1529
Dr. Nicholas Stark, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8000
Dr. Nicole D'arcy, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5752
Dr. Nicole Hohenstein
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1529
Dr. Nicole Munz, DO
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 476-1000
Dr. Nicole Rayan, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1037
Dr. Nida Degesys, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1529
Dr. Nivedita Poola, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1595
Dr. Noah Hawthorne, MD, MPH
San Francisco, CA · No drug or device payments recorded (2025) · (415) 443-6049
Dr. Olivia Hall
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1529
Dr. Oron Frenkel, M.D., M.S.
San Francisco, CA · $21,695 in drug and device payments (2025) · (305) 586-9271
Dr. Pam Hemphill, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 405-0222
Dr. Patricia Simpson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (209) 342-2300
Dr. Patrick Clarke, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Patrick Noone, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-6000
Dr. Paul Ehlers
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1037
Dr. Paul Robinson
San Francisco, CA · No drug or device payments recorded (2025) · (415) 948-8836
Dr. Peter Emblad, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Peter Sullivan, MD
San Francisco, CA · No drug or device payments recorded (2025) · (209) 342-2300
Dr. Phil Delrosario
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1529
Dr. Phillip Piccinini, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-6000
Dr. Pranav Kaul
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1238
Dr. Prathap Sooriyakumaran, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8000
Dr. Preston Maxim, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5753
Dr. Preston Wong, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Rachel Chin, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5753
Dr. Randeep Singh, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5753
Dr. Randy Nguyen, MD
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-8111

Common questions

How many Emergency Medicine providers are in California?

There are 7,777 Emergency Medicine providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Emergency Medicine providers in California offer telehealth?

Yes. 234 of the 7,777 Emergency Medicine providers in California (about 3%) report offering telehealth services in CMS data.

Which cities in California have the most Emergency Medicine providers?

Los Angeles (630), San Diego (496), Sacramento (371) have the highest concentration of Emergency Medicine providers in California.

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

1,103 of 7,777 Emergency Medicine providers in California (14%) 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 Emergency Medicine Doctors in California work in independent practices or large health systems?

Among 4,164 Emergency Medicine Doctors in California enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 27% 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 Emergency Medicine Doctors in California work at?

According to CMS facility affiliation records, the California hospitals where the most Emergency Medicine Doctors hold privileges are Uci Health-Orange in Orange; Stanford Health Care in Stanford; Kaiser Foundation Hospital - Oakland/Richmond in Oakland.

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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 Emergency Medicine in California? Get featured.