HealthcareDiscovery.AI / Doctors / California / Emergency Medicine

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. Teri Chew, M.D.
San Mateo, CA · No drug or device payments recorded (2025) · (415) 281-6499
Dr. Vernell Smith, MD
San Mateo, CA · $15 in drug and device payments (2025) · (650) 573-2671
Dr. Yenting Chen, MD
San Mateo, CA · No drug or device payments recorded (2025) · (650) 696-4427
Dr. Zara Mathews, M.D.
San Mateo, CA · No drug or device payments recorded (2025) · (650) 573-2671
Dr. John Rampulla, M.D.
San Pablo, CA · No drug or device payments recorded (2025) · (510) 970-5140
Dr. Jude Moore, M.D.
San Pablo, CA · No drug or device payments recorded (2025) · (510) 970-5140
Dr. Matthew Nowlis, M.D.
San Pablo, CA · No drug or device payments recorded (2025) · (510) 970-5140
Dr. Stephen Cady, MD
San Pablo, CA · No drug or device payments recorded (2025) · (510) 970-5430
Dr. Tingting Ko, M.D.
San Pablo, CA · No drug or device payments recorded (2025) · Telehealth · (510) 970-5140
Dr. Alessandra Conforto, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Alex Dang, MD
San Pedro, CA · $123 in drug and device payments (2025) · (310) 514-5410
Dr. Arlene Vernon, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Brian Fong, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Douglas Mcfarland, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Jeffrey Dayton, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. John Mccall, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Karen Hoyt, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Keith Stamler, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Knef Lizaso, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Marco Diaz, M.D.
San Pedro, CA · $240 in drug and device payments (2025) · (310) 514-5350
Dr. Mark Joyner, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Miles Shaw, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Ronnie Melendez
San Pedro, CA · $1,401 in drug and device payments (2025) · (310) 514-5350
Dr. Sameer Mistry, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Shaghayegh Haghighat, M.D.
San Pedro, CA · No drug or device payments recorded (2025) · (310) 514-5350
Dr. Thomas Bostwick, MD
San Pedro, CA · No drug or device payments recorded (2025) · (310) 732-7500
Dr. Usha Rani Reddy, M.D.
San Pedro, CA · $42 in drug and device payments (2025) · (310) 514-5350
Dr. Anna Denham, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Anna Webster, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 473-3643
Dr. Brian Nishinaga, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 847-5541
Dr. Carol Tereszkiewicz, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Cynthia Clark, MD
San Rafael, CA · No drug or device payments recorded (2025) · (209) 342-2300
Dr. Darlena Monet, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Douglas Harris, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Frederick Meyer, MD
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (415) 444-2000
Dr. Jason Day, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 408-8012
Dr. Jennifer Grayzar, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 925-8865
Dr. John David, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Kimberly Schrage, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Kurt Kunzel, MD
San Rafael, CA · No drug or device payments recorded (2025) · (209) 342-2300
Dr. Michael Barbaro
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (415) 444-2000
Dr. Michael Sexton, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Morgan Camp, MD
San Rafael, CA · No drug or device payments recorded (2025) · (209) 342-2300
Dr. Peter Teichman, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Robert Stein, DO
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Seth Peckler, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Vicki Martinez, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Amanda Stephenson, MD
San Ramon, CA · No drug or device payments recorded (2025) · (925) 275-8280
Dr. Diane Mimran, MD
San Ramon, CA · No drug or device payments recorded (2025) · (925) 275-8282
Dr. Harold Wilkie, MD
San Ramon, CA · No drug or device payments recorded (2025) · (925) 275-8280

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

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.