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. Ian Reilly, M.D.La Jolla, CA · $2,925 in drug and device payments (2025) ·
(858) 354-6049 Dr. Irving Jacoby, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. James Dunford, MDLa Jolla, CA · $17 in drug and device payments (2025) ·
(858) 657-7000 Dr. James Hwang, M.D.La Jolla, CA · $116 in drug and device payments (2025) ·
(858) 626-6902 Dr. Johannes Neuendorf, D.O.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-8638 Dr. Kama Guluma, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Laura Westneat, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Leslie Oyama, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Lisa Morikado, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-6150 Dr. Marc Hare, MDLa Jolla, CA · $57 in drug and device payments (2025) ·
(858) 657-7000 Dr. Mark Olcott, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-5100 Dr. Martin Jackier, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 750-2246 Dr. Matthew LippiLa Jolla, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Max Trojano, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Megan Demott, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(503) 490-8067 Dr. Megan Tresenriter, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-8638 Dr. Michael Young, DOLa Jolla, CA · $930 in drug and device payments (2025) ·
(858) 657-7000 Dr. Monte Mellon, M.D. M.B.A.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-6150 Dr. Natalie Haugen, DOLa Jolla, CA · $97 in drug and device payments (2025) ·
(800) 926-8273 Dr. Peter Witucki, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Raj Patel, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Richard Clark, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Richard Obler, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 922-1073 Dr. Richard Stennes, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 459-4750 Dr. Samantha Mcglone, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-4123 Dr. Sean Deitch, M.D.La Jolla, CA · $20 in drug and device payments (2025) ·
(858) 626-6150 Dr. Solana Archuleta, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Sonja Eagle, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Stephen Gormican, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-6150 Dr. Stephen Hayden, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Steven Henderson, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-8638 Dr. Steven Lada, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Taylor Cardall, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-6902 Dr. Theodore Chan, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Thomas Kozak, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-8638 Dr. Tom Neuman, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Tri Tong, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Elisa Aumont, M.D.Lake Arrowhead, CA · No drug or device payments recorded (2025) ·
(909) 336-3651 Dr. John Hankey, MDLake Arrowhead, CA · No drug or device payments recorded (2025) ·
(909) 336-3651 Dr. Gordon Mccreadie, M.D.Lake Elsinore, CA · No drug or device payments recorded (2025) ·
(844) 308-5003 Dr. Alan Berman, M.DLake Forest, CA · No drug or device payments recorded (2025) ·
(949) 452-7544 Dr. Christopher Burrows, M.D.Lake Isabella, CA · No drug or device payments recorded (2025) ·
(760) 379-2681 Dr. Mike Fealy, MDLake Isabella, CA · No drug or device payments recorded (2025) ·
(760) 379-2681 Dr. Peter Newell, M.D.Lake Isabella, CA · No drug or device payments recorded (2025) ·
(760) 379-2681 Dr. Christian Hackshaw, M.D.Lakeport, CA · No drug or device payments recorded (2025) ·
(707) 262-5050 Dr. Edward Fedun, MDLakeport, CA · No drug or device payments recorded (2025) ·
(707) 262-5000 Dr. Matthew Karp, MDLakeport, CA · No drug or device payments recorded (2025) ·
(707) 262-5050 Dr. Alfonso Castellucci, DOLakewood, CA · No drug or device payments recorded (2025) ·
(562) 531-2550 Dr. Constantine Svimonoff, MDLakewood, CA · No drug or device payments recorded (2025) ·
(562) 602-6800 Dr. James Chapman, DOLakewood, CA · No drug or device payments recorded (2025) ·
(562) 602-6800 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
Emergency Medicine in all 50 states Search all 7,777 in the directory Ask Zach for help choosing
Related
