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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. Lilian Li, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Linda Olsen, MD
Bellflower, CA · No drug or device payments recorded (2025) · (800) 823-4040
Dr. Michael Aigner, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Nathan Mcneil, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Nina Nash, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Peter Tsai, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Peter Yamashita, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Pravin Acharya, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Rebecca Ruiz, M.D.
Bellflower, CA · No drug or device payments recorded (2025) · (562) 925-8355
Dr. Richard Ludlow, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Richard Newell, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Scott Gwaltney, M.D.
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-4195
Dr. Steve Nguyen, MD
Bellflower, CA · $226 in drug and device payments (2025) · (562) 461-3000
Dr. Susan Gonzalez, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Ti Tsay, MD
Bellflower, CA · $12,459 in drug and device payments (2025) · (562) 461-3000
Dr. Victor Nwaenia, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Vincent Han, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Vuong Ta, MD
Bellflower, CA · $122 in drug and device payments (2025) · (562) 461-3000
Dr. Zachary Shinar, M.D.
Bellflower, CA · $153 in drug and device payments (2025) · (626) 403-1923
Dr. Joseph Barton, M.D.
Benicia, CA · No drug or device payments recorded (2025) · (412) 398-2441
Dr. Larry Bowman, M.D.
Benicia, CA · No drug or device payments recorded (2025) · (707) 567-7891
Dr. Abanoub Paul Hanna
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444
Dr. Alex Fox, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444
Dr. Altaf Ansari, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-5514
Dr. Ami Yamamoto
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4723
Dr. Andrew Osugi, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 655-4000
Dr. Brian Hinrichsen, PA
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-2500
Dr. Brian Potts, MD
Berkeley, CA · No drug or device payments recorded (2025) · (925) 962-1800
Dr. Chris Feng, MD
Berkeley, CA · No drug or device payments recorded (2025) · (877) 346-2211
Dr. Daniel Mccormack, PA
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444
Dr. David Chen, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444
Dr. Dev Dhanoa, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 527-3195
Dr. Dominic Pappas, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444
Dr. Elton Mcamis, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444
Dr. Grace Tarng, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4723
Dr. Helen Jackson, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-5514
Dr. Howard Backer, MD
Berkeley, CA · $56 in drug and device payments (2025) · (510) 642-6621
Dr. James Hirshberg, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-2500
Dr. James Starr, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4723
Dr. Jeff Chen, DR
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-2500
Dr. Jessica Li, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (415) 806-5797
Dr. John Skovran, D.O.
Berkeley, CA · No drug or device payments recorded (2025) · (215) 456-6336
Dr. Joseph Pinizzotto, DO
Berkeley, CA · No drug or device payments recorded (2025) · (215) 456-3834
Dr. Karen Carothers, MD
Berkeley, CA · $17 in drug and device payments (2025) · (510) 204-4444
Dr. Lindsay Walker, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-5541
Dr. Marjorie Macqueen, PA
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444
Dr. Melissa Tang, M.D.
Berkeley, CA · $465 in drug and device payments (2025) · (510) 204-4444
Dr. Melissa Tom, MD
Berkeley, CA · No drug or device payments recorded (2025) · (543) 843-1200
Dr. Michael Jugo, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 843-1200
Dr. Michael Kessler, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-4444

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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Related

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.