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. Nancy Sun, M.D.Simi Valley, CA · $148 in drug and device payments (2025) ·
(805) 955-6107 Dr. Siobhan Newman, MDSimi Valley, CA · No drug or device payments recorded (2025) ·
(805) 579-3981 Dr. Virginia Valadka, M.D.Simi Valley, CA · No drug or device payments recorded (2025) ·
(805) 955-6000 Dr. Steven Mcnamara, MDSo Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Christy Hendrickson, M.D.Solana Beach, CA · No drug or device payments recorded (2025) ·
(858) 755-2215 Dr. Robert Mcwhirter, M.D.Solana Beach, CA · No drug or device payments recorded (2025) ·
(714) 296-0550 Dr. Christopher Hutton, MDSolvang, CA · No drug or device payments recorded (2025) ·
(805) 686-3989 Dr. Garrett Norvell, MDSolvang, CA · No drug or device payments recorded (2025) ·
(805) 686-3989 Dr. Jasjit Adlakha, MDSolvang, CA · No drug or device payments recorded (2025) ·
(831) 334-4158 Dr. Jo Hauser, MDSolvang, CA · No drug or device payments recorded (2025) ·
(805) 688-6431 Dr. Lisa Hall-moore, MDSolvang, CA · No drug or device payments recorded (2025) ·
(805) 688-6431 Dr. Nils Tanaka, MDSolvang, CA · No drug or device payments recorded (2025) ·
(805) 688-6431 Dr. Robert Sterling, MDSolvang, CA · No drug or device payments recorded (2025) ·
(805) 688-6431 Dr. Travis Mellon, D.O.Solvang, CA · No drug or device payments recorded (2025) ·
(805) 686-3989 Dr. Erick French, MDSonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5000 Dr. Jay Goldberg, MDSonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5100 Dr. Leslie Graham, M.D.Sonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5100 Dr. Mark Wills, MDSonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5100 Dr. Nicolas Sawyer, M.D.Sonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5000 Dr. Robert Petty, DOSonoma, CA · No drug or device payments recorded (2025) ·
(360) 708-7940 Dr. Stephen Kahn, MDSonoma, CA · $5,625 in drug and device payments (2025) ·
(707) 935-5100 Dr. William Keyser, MDSonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5100 Dr. Blake Cleveland, M.D. Dr. Daniel TupySonora, CA · No drug or device payments recorded (2025) ·
(209) 263-0803 Dr. Donald Dudley, M.D.Sonora, CA · No drug or device payments recorded (2025) ·
(209) 536-3460 Dr. Michael Forster, MDSonora, CA · No drug or device payments recorded (2025) ·
(209) 533-7100 Dr. Robert Lyons, M.D.Sonora, CA · No drug or device payments recorded (2025) ·
(209) 536-5000 Dr. Ron Hood, MDSonora, CA · No drug or device payments recorded (2025) ·
(209) 533-7100 Dr. Ryan PappalSonora, CA · No drug or device payments recorded (2025) ·
(209) 536-5000 Dr. Stephanie Stuart, M.D.Sonora, CA · No drug or device payments recorded (2025) ·
(209) 532-5000 Dr. Steven Joye, DOSonora, CA · No drug or device payments recorded (2025) ·
(209) 532-5000 Dr. Travis Wassermann, MDSonora, CA · No drug or device payments recorded (2025) ·
(209) 536-5000 Dr. William Bowie, M.D.Sonora, CA · No drug or device payments recorded (2025) ·
(209) 532-3167 Dr. William Wu, D.O.Sonora, CA · No drug or device payments recorded (2025) ·
(209) 263-0803 Dr. David Kassel, MDSoquel, CA · No drug or device payments recorded (2025) ·
(831) 688-8680 Dr. James White, MDSoquel, CA · No drug or device payments recorded (2025) ·
(831) 854-7599 Dr. Anh Mai, M.D.South El Monte, CA · No drug or device payments recorded (2025) ·
(626) 679-7777 Dr. Assibi Abudu, M.D.South El Monte, CA · No drug or device payments recorded (2025) ·
(626) 350-7957 Dr. Weyjuin Chao, M.D.South El Monte, CA · No drug or device payments recorded (2025) ·
(626) 579-7777 Dr. Allison Brewer, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Amy Anton, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Clinton Masterson, M.D.South Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Corey Mc Leod, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Dennis Martinez, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Elizabeth Mcnamara, M.D.South Lake Tahoe, CA · $20 in drug and device payments (2025) ·
(530) 541-3420 Dr. Kandra Yee, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Kathi Glauner, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Lance Orr, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 Dr. Lars Ensign, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 541-3420 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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