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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. John Leung, MD
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 307-2129
Dr. Juan Jones, M.D.
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 307-2129
Dr. Kimberly Iwaki
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 390-1154
Dr. Li Cui
Monterey Park, CA · No drug or device payments recorded (2025) · (323) 788-6538
Dr. Phong Ngo, MD
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 307-2129
Dr. Charles Drehsen, M.D.
Moorpark, CA · No drug or device payments recorded (2025) · (805) 517-2010
Dr. Forrest Cioppa, MD
Moraga, CA · No drug or device payments recorded (2025) · (925) 376-3316
Dr. Alexander Gau, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5914
Dr. Ava Hacopian, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (916) 854-3000
Dr. Carl Rhodes, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5908
Dr. Charles Lewsadder, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5908
Dr. Daniel Roth, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5434
Dr. David Bedrous, PA-C
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 243-0811
Dr. Eric Chai, DO
Moreno Valley, CA · $16 in drug and device payments (2025) · (951) 486-5434
Dr. Gerardo Salcedo, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Henry Marr, D.O.
Moreno Valley, CA · No drug or device payments recorded (2025) · (833) 574-2273
Dr. Humberto Ochoa, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Ivan Silva, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-4000
Dr. Jackson Lu, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5908
Dr. James Miller, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5650
Dr. John Naftel, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Jonathan Palacios, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-4000
Dr. Jonathan Tom, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-4853
Dr. Kevin Dales, DO
Moreno Valley, CA · $2,686 in drug and device payments (2025) · (951) 486-4000
Dr. Lisa Blackley, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5434
Dr. Mark Thomas, D.O.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Matthew Underwood, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Michael Millard, DO
Moreno Valley, CA · $3,847 in drug and device payments (2025) · (951) 486-5650
Dr. Moses Lee, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5434
Dr. Natalie Fenske, DO
Moreno Valley, CA · $16 in drug and device payments (2025) · (951) 486-5650
Dr. Oscar Salaiz, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-4000
Dr. Preston Phan, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5650
Dr. Radu Dudas, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 243-0811
Dr. Raj Patel, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5908
Dr. Robin Fisher, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (330) 493-4443
Dr. Rolando Sy, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Ryan Windemuth, M.D
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Samnuel Chua, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Sarah Leaf, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 558-4000
Dr. Timothy Nesper, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (909) 486-5650
Dr. Tristen Burt, DO
Moreno Valley, CA · $16 in drug and device payments (2025) · (951) 486-5434
Dr. Umron Alkotob, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5908
Dr. Victor Levine, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5650
Dr. Vi Dinh, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5700
Dr. Yu Sam Ting, DO
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-4000
Dr. Larry Cohen, MD
Morgan Hill, CA · $348 in drug and device payments (2025) · (408) 762-7022
Dr. Jhonjay Poindexter, M.D
Moss Beach, CA · No drug or device payments recorded (2025) · (650) 728-5521
Dr. Ray Lee, MD
Moss Beach, CA · $586 in drug and device payments (2025) · (650) 563-7107
Dr. Alan Gladman, M.D
Mountain View, CA · No drug or device payments recorded (2025) · (650) 940-7055
Dr. Alexandra Gubbels, MD
Mountain View, CA · No drug or device payments recorded (2025) · (650) 940-7055

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.