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 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. Aileen Guillen, MDTorrance, CA · No drug or device payments recorded (2025) ·
(424) 306-5400 Dr. Ai Xin ChenTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Alexander Lemon, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Alexandra Grossman, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Allen Bookatz, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Alonzo Woodfield, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Alyssa Scott, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Ana Lopez-o'sullivan, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 784-4997 Dr. Andres ParkTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-2301 Dr. Andrew Fink, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Andrew Louie, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 540-7676 Dr. Andrew PhamTorrance, CA · $16 in drug and device payments (2025) ·
(310) 222-3501 Dr. Andrew Shen, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 517-4785 Dr. Angelica Mcpartlin, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Anthony LuceroTorrance, CA · $21 in drug and device payments (2025) ·
(310) 222-3501 Dr. Anthony RobinsonTorrance, CA · No drug or device payments recorded (2025) ·
(424) 306-4000 Dr. Ariel Wu, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 325-9110 Dr. Aslam Akhtar, MDTorrance, CA · No drug or device payments recorded (2025) ·
(424) 306-5400 Dr. Aubrey Ferguson, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Avi SianiTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-2345 Dr. Bao Duong, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 540-7676 Dr. Benjamin Squire, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Brecken Armstrong-kelsey, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Brett Lorber, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 517-4785 Dr. Brian Feng, D.OTorrance, CA · $16 in drug and device payments (2025) ·
(310) 357-0828 Dr. Brittney Mull, M.D., MPHTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Bryan Ngo, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Bryan Sloane, M.D.Torrance, CA · $43 in drug and device payments (2025) ·
(310) 222-3501 Dr. Cameron AraghiTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-6878 Dr. Carlos Medina, MDTorrance, CA · $239 in drug and device payments (2025) ·
(310) 517-4785 Dr. Carlos Smith, MDTorrance, CA · $40 in drug and device payments (2025) ·
(844) 443-6246 Dr. Carl Stevens, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-6744 Dr. Caroline Altergott, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 543-5814 Dr. Catherine Antonuk, MDTorrance, CA · No drug or device payments recorded (2025) ·
(424) 306-5667 Dr. Cesar Fortuna, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-2345 Dr. Chad Venne, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 784-3740 Dr. Charles Randazzo, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Chirag ShahTorrance, CA · $78 in drug and device payments (2025) ·
(310) 222-3528 Dr. Christian Mcclung, MD MPHILTorrance, CA · $99 in drug and device payments (2025) ·
(310) 303-5600 Dr. Christina Chao, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Christine Yoon, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(949) 310-7958 Dr. Christopher Redgate, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Clifford Wang, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 540-7676 Dr. Clinton Coil, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3500 Dr. Colin HoffTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 Dr. Colin Wang, MDTorrance, CA · No drug or device payments recorded (2025) ·
(424) 306-4000 Dr. Constantine Gean, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 618-9200 Dr. Craig Allred, M.D.Torrance, CA · No drug or device payments recorded (2025) ·
(310) 222-2350 Dr. Curtice Wong, MDTorrance, CA · No drug or device payments recorded (2025) ·
(310) 517-4785 Dr. Daena Watcha, MD, MSTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-3501 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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