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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. Jeremy Mighdoll, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Jeremy Paulsen, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2622
Dr. Jeremy Shin, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-0599
Dr. Jessa Baker
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-9111
Dr. Jessica Faiz, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-9111
Dr. Jessica Osterman, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 977-2121
Dr. Jesus Torres, MD, MPH
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-0599
Dr. Joel Geiderman, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 423-8600
Dr. Joelle Torregrossa, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-6667
Dr. John Barnard, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 665-1223
Dr. John Cooper, D.O.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-7556
Dr. John Hatherley, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 977-2423
Dr. John Kim, MD
Los Angeles, CA · $103 in drug and device payments (2025) · (412) 414-3498
Dr. John Rankin, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 413-3000
Dr. John Roberts, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (662) 832-4562
Dr. John Sawyer, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-0785
Dr. John Shohfi, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. John Udeani, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Jonathan Mcwhorter, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-9111
Dr. Jonathan Warren
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-9111
Dr. Jonathan Yaghoubian, DO
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-2111
Dr. Jonie Hsiao, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 478-3711
Dr. Jon Roper, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 977-2121
Dr. Jorge Diaz, MD
Los Angeles, CA · $40 in drug and device payments (2025) · (323) 268-5514
Dr. Jorge Llanes, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Jorge Serrano, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (209) 640-4404
Dr. Joseph Baltrushes
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2170
Dr. Joseph Chan, M.D.
Los Angeles, CA · $71 in drug and device payments (2025) · (310) 794-0585
Dr. Joseph Choi, MD, MPH
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2622
Dr. Joseph Gannett, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 409-6734
Dr. Joshua Mechanic, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 478-3711
Dr. Joshua Partnow, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (609) 760-9274
Dr. Joshua Quinones, M.D.
Los Angeles, CA · $53 in drug and device payments (2025) · (213) 748-2411
Dr. Joshua Tiao
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-0599
Dr. Joshua Troke, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-0585
Dr. Juan Resendez
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 409-6667
Dr. Julia Wang, M.D.
Los Angeles, CA · $144 in drug and device payments (2025) · (212) 284-3200
Dr. Julieta Moran, M.D.
Los Angeles, CA · $123 in drug and device payments (2025) · (323) 226-6667
Dr. Karen Olaes, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-6667
Dr. Karla Copeland
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2170
Dr. Karthikeyan Muthuswamy, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-2111
Dr. Kate Kaufman
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2170
Dr. Katherine Harter, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-6667
Dr. Katherine Ross, MD
Los Angeles, CA · $16 in drug and device payments (2025) · (323) 409-1000
Dr. Katherine Stiene, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 409-1000
Dr. Kathleen Ferguson, DO
Los Angeles, CA · No drug or device payments recorded (2025) · (775) 997-6448
Dr. Kathleen Macintyre, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 286-0122
Dr. Kathleen Waltz, D.O.
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 748-2411
Dr. Kathleen Yip, MD
Los Angeles, CA · $1,750 in drug and device payments (2025) · (310) 478-3711
Dr. Kathryn Kinsella, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (131) 079-4085

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.

Related reading on HealthcareDiscovery.AI

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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.