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. Hanne Noergaard, D.O
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9500
Dr. Hsu-hsiang Chang, D.O.
Pomona, CA · $21 in drug and device payments (2025) · (909) 865-9917
Dr. Ivan Schatz, M.D
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9600
Dr. John Lee, M.D
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9600
Dr. Joshua Hong, MD
Pomona, CA · No drug or device payments recorded (2025) · (909) 379-9321
Dr. Keith Mccarty, M.D.
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9600
Dr. Kenneth Nakamoto, M.D.
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9600
Dr. Lee Maas, M.D.
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9500
Dr. Matthew Schultz, M.D
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9600
Dr. Michelle Iwaki
Pomona, CA · No drug or device payments recorded (2025) · Telehealth · (909) 865-9500
Dr. Philip Lin, M.D.
Pomona, CA · $78 in drug and device payments (2025) · (909) 865-9500
Dr. Richard Dorosh, M.D.
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9600
Dr. Sapna George-mattappally, M.D.
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9500
Dr. Stephanie Loe, M.D.
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-9611
Dr. Stephen Bolen
Pomona, CA · No drug or device payments recorded (2025) · (503) 816-5325
Dr. Victoria Shook, M.D.
Pomona, CA · $38 in drug and device payments (2025) · (909) 865-9600
Dr. Wesley Curry, M.D
Pomona, CA · No drug or device payments recorded (2025) · (909) 865-5168
Dr. Joshua Green, D.O.
Porter Ranch, CA · No drug or device payments recorded (2025) · (818) 850-7129
Dr. David Nguyen, M.D.
Porterville, CA · No drug or device payments recorded (2025) · (559) 784-1110
Dr. Dewane Brueske, M.D.
Porterville, CA · No drug or device payments recorded (2025) · (559) 784-1110
Dr. Erika Wilson, M.D
Porterville, CA · No drug or device payments recorded (2025) · (559) 784-1110
Dr. Ernest Kazato, M.D.
Porterville, CA · No drug or device payments recorded (2025) · (559) 784-1110
Dr. Jason Chan, PA
Porterville, CA · No drug or device payments recorded (2025) · (559) 784-1110
Dr. Mark Eller, M.D.
Porterville, CA · $23 in drug and device payments (2025) · (559) 784-1110
Dr. Reagan Bellinghausen, M.D.
Porterville, CA · No drug or device payments recorded (2025) · (559) 784-1110
Dr. Thomas Lukaszczyk, M.D.
Porterville, CA · No drug or device payments recorded (2025) · (559) 784-1110
Dr. Charles Kaplove
Portola, CA · No drug or device payments recorded (2025) · (530) 832-6500
Dr. Jeffrey Davis, M.D.
Portola, CA · No drug or device payments recorded (2025) · (530) 832-6500
Dr. Kenneth Robinson
Portola, CA · No drug or device payments recorded (2025) · (530) 832-6500
Dr. Mark Boettger, MD
Portola, CA · No drug or device payments recorded (2025) · (530) 832-6500
Dr. Paul Swanson
Portola, CA · No drug or device payments recorded (2025) · (530) 832-6500
Dr. Lawrence Masket, MD
Portola Valley, CA · No drug or device payments recorded (2025) · (650) 854-5170
Dr. John Liboon, MD
Poway, CA · No drug or device payments recorded (2025) · (858) 613-4000
Dr. Joseph Fiore, M.D.
Poway, CA · No drug or device payments recorded (2025) · (858) 675-3200
Dr. Jennifer Gladden, MD
Quincy, CA · No drug or device payments recorded (2025) · (530) 283-2121
Dr. Jennifer Scott, MD
Quincy, CA · No drug or device payments recorded (2025) · (925) 225-5837
Dr. Michael Marchesseault, M.D.
Quincy, CA · No drug or device payments recorded (2025) · (530) 283-7161
Dr. Dan Field, M.D.
Rancho Cordova, CA · No drug or device payments recorded (2025) · (866) 907-8233
Dr. Gilbert Zini, M.D.
Rancho Cucamonga, CA · No drug or device payments recorded (2025) · (909) 982-1888
Dr. Hala Sabry, D.O.
Rancho Cucamonga, CA · No drug or device payments recorded (2025) · Telehealth · (909) 803-0662
Dr. Shin Liong, M.D.
Rancho Cucamonga, CA · No drug or device payments recorded (2025) · (909) 463-5003
Dr. Thuy Nguyen, MD
Rancho Cucamonga, CA · $525 in drug and device payments (2025) · Telehealth · (909) 941-0920
Dr. Yi Zhang, M.D.
Rancho Cucamonga, CA · No drug or device payments recorded (2025) · (909) 941-2273
Dr. Aarash Habibi, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 773-2968
Dr. Alexis Petra, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 340-3911
Dr. Amy Smookler, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 773-1221
Dr. Anantha Singarajah, DO
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 340-3911
Dr. Andrea Hladik, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 773-1221
Dr. Anthony Scarcella, MD
Rancho Mirage, CA · $170 in drug and device payments (2025) · (760) 773-1221
Dr. Ashley Payton, DO
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 340-3911

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.