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. Michelle Davis, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 554-5210 Dr. Mikaela Middleton, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1300 Dr. Neil Markus, DOVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Nhi Lee, M.D.Vallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1025 Dr. Noumi Chowdhury, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Peter Chau, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Rebecca Rossner, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Robert Orynich, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Ryan Dollbaum, M.D.Vallejo, CA · No drug or device payments recorded (2025) ·
(714) 319-2577 Dr. Scott Casey, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Sean Wormuth, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Stephanie Eden, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1030 Dr. Steven Whiteley, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Susan Sommer, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Timothy Miller, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Travis Harris, M. D.Vallejo, CA · No drug or device payments recorded (2025) ·
(707) 554-4444 Dr. Valerie Chavez-floresVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Vivek Puppala, M.D.Vallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-3785 Dr. William Melton, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 554-4444 Dr. Paul Barton, MDValley Springs, CA · No drug or device payments recorded (2025) ·
(209) 786-3795 Dr. Christopher Velasquez, DOVandenberg Afb, CA · No drug or device payments recorded (2025) ·
(805) 606-2273 Dr. Alexis Zumbrunn, MDVan Nuys, CA · No drug or device payments recorded (2025) ·
(818) 782-6600 Dr. Anne Schmitt, M.D.Van Nuys, CA · $44 in drug and device payments (2025) ·
(818) 902-2990 Dr. Apostolos Lekkos, DOVan Nuys, CA · No drug or device payments recorded (2025) ·
(310) 955-1885 Dr. Benjamin Chan, MDVan Nuys, CA · No drug or device payments recorded (2025) ·
(818) 782-6600 Dr. Bijan Motamedi, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. David Zohrabian, M.D.Van Nuys, CA · $320 in drug and device payments (2025) ·
(818) 902-5772 Dr. Frank Gillingham, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Gary Khammahavong, MDVan Nuys, CA · No drug or device payments recorded (2025) ·
(818) 782-6600 Dr. Geoffrey Smith, MDVan Nuys, CA · No drug or device payments recorded (2025) ·
(818) 782-6600 Dr. Homayoun Nassiri, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Jeffrey CastrillonVan Nuys, CA · No drug or device payments recorded (2025) ·
(818) 782-6600 Dr. Joanne Williams, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Juk Ting, D.O.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Kendrick Law, MDVan Nuys, CA · No drug or device payments recorded (2025) ·
(818) 782-6600 Dr. Kyle Ragins, M.D.,M.B.A.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 627-3062 Dr. Loretta Samaniego, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Mark Bell, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Minh PhamVan Nuys, CA · $75 in drug and device payments (2025) ·
(818) 902-2990 Dr. Monica Brown, MD, MPHVan Nuys, CA · No drug or device payments recorded (2025) ·
(818) 000-0000 Dr. Paul Batmanis, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Scott Narimatsu, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 782-6600 Dr. Stanley Azen, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Thomas Lambert, M.D.Van Nuys, CA · No drug or device payments recorded (2025) ·
(818) 902-2990 Dr. Cynthia Ambres, M.D.Venice, CA · No drug or device payments recorded (2025) ·
(310) 822-6525 Dr. Ross Donaldson, MD, MPHVenice, CA · No drug or device payments recorded (2025) ·
(310) 500-6064 Dr. Alicia Haglund, MDVentura, CA · $300 in drug and device payments (2025) ·
(805) 585-3086 Dr. Allison Binkowski, M.D.Ventura, CA · No drug or device payments recorded (2025) ·
(805) 652-6000 Dr. Anthony Walls, M.D.Ventura, CA · No drug or device payments recorded (2025) · Telehealth ·
(805) 652-6228 Dr. Ben Lucas-roberts, M.D.Ventura, CA · No drug or device payments recorded (2025) ·
(805) 652-6228 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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