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.
Where Emergency Medicine Doctors in California practice
From CMS Medicare enrollment records covering 4,164 of the 7,777 providers listed here (54%). Providers who do not bill Medicare are not included in these figures.
7%solo or small practice (under 10 clinicians)
27%mid-size group (10 to 99)
66%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Emergency Medicine Doctors | All clinicians in group | Main city |
| Cep America - California | 757 | 1,278 | Moreno Valley |
| Permanente Medical Group Inc. | 569 | 10,928 | Sacramento |
| Southern California Permanente Medical Group | 239 | 11,250 | Los Angeles |
| Stanford Health Care | 93 | 3,152 | Stanford |
| Regents of the University of California | 87 | 2,047 | San Diego |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Emergency Medicine Doctors affiliated |
| Uci Health-Orange | Orange | Government | 4 of 5 | 102 |
| Stanford Health Care | Stanford | Nonprofit | 5 of 5 | 99 |
| Kaiser Foundation Hospital - Oakland/Richmond | Oakland | Nonprofit | 2 of 5 | 94 |
| UC San Diego Health Hillcrest - Hillcrest Med Ctr | San Diego | Nonprofit | 5 of 5 | 92 |
| Santa Clara Valley Medical Center | San Jose | Government | 2 of 5 | 72 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
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. Antonio Muto-isolani, MD Dr. Arthur Glaser, M.D.Alameda, CA · No drug or device payments recorded (2025) ·
(510) 523-4357 Dr. Christopher Vandivort, M.D.Alameda, CA · No drug or device payments recorded (2025) ·
(203) 273-2412 Dr. Edward Lee, MDAlameda, CA · No drug or device payments recorded (2025) ·
(510) 523-4357 Dr. Eric Otani, M.DAlameda, CA · No drug or device payments recorded (2025) ·
(510) 523-4357 Dr. Henry Turkel, M.D., MPHAlameda, CA · No drug or device payments recorded (2025) ·
(510) 896-9445 Dr. Joel Stettner, M.D.Alameda, CA · No drug or device payments recorded (2025) ·
(510) 523-4357 Dr. Jordan Cohen, M.D.Alameda, CA · No drug or device payments recorded (2025) ·
(510) 523-4357 Dr. Jorge Aceves, M.D.Alameda, CA · $626 in drug and device payments (2025) ·
(510) 437-4800 Dr. Joshua Kim, D.O.Alameda, CA · No drug or device payments recorded (2025) ·
(510) 522-3700 Dr. Leif Johnson, M.D.Alameda, CA · No drug or device payments recorded (2025) ·
(510) 523-4357 Dr. Marilyn Devries, M.D.Alameda, CA · No drug or device payments recorded (2025) ·
(510) 421-2211 Dr. Sammy Hodroge, MDAlameda, CA · No drug or device payments recorded (2025) ·
(510) 522-3700 Dr. Yong-yong Tam, M.D.Alameda, CA · No drug or device payments recorded (2025) ·
(510) 482-0558 Dr. Annaliese ElamAlamo, CA · No drug or device payments recorded (2025) ·
(925) 588-9917 Dr. Andrew Shen, M.D.Alhambra, CA · $63 in drug and device payments (2025) ·
(626) 836-3020 Dr. Anise Kevakian, PA-CAlhambra, CA · No drug or device payments recorded (2025) ·
(626) 457-4240 Dr. Anthony Tjio, M.D.Alhambra, CA · No drug or device payments recorded (2025) ·
(626) 836-3020 Dr. Edward Hernandez, M.D.Alhambra, CA · No drug or device payments recorded (2025) ·
(626) 836-3020 Dr. Elmo Orlino, M.D.Alhambra, CA · No drug or device payments recorded (2025) ·
(626) 458-4792 Dr. Laith Alreshaid, MDAlhambra, CA · No drug or device payments recorded (2025) ·
(626) 457-5848 Dr. Priscilla Chao, MDAlhambra, CA · $18 in drug and device payments (2025) ·
(626) 570-1606 Dr. Saima Zubair, M.D.Alhambra, CA · $32 in drug and device payments (2025) ·
(626) 570-1606 Dr. Brett Hadley, D.O.Aliso Viejo, CA · No drug or device payments recorded (2025) ·
(801) 367-9019 Dr. Guneet SinghAliso Viejo, CA · No drug or device payments recorded (2025) ·
(949) 338-5591 Dr. Scott Shreeve, MDAliso Viejo, CA · No drug or device payments recorded (2025) ·
(194) 923-5937 Dr. Alan Osgood, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 827-3000 Dr. Albert Aparicio, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 563-2808 Dr. Anthony Matthews, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Anupama Singh, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Bradley De Marquette, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Bruce Lipton, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Bryan Yeh, M.D.Anaheim, CA · $165 in drug and device payments (2025) ·
(714) 999-6111 Dr. Charles Cheng, M.D.Anaheim, CA · No drug or device payments recorded (2025) ·
(714) 563-2808 Dr. Chien Sun, M.D.Anaheim, CA · No drug or device payments recorded (2025) ·
(714) 644-2800 Dr. Christopher Lai, M.DAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 774-1450 Dr. Christopher Libby, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(774) 644-4357 Dr. Cindy Parker, DOAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Clarke Lew, MDAnaheim, CA · $173 in drug and device payments (2025) · Telehealth ·
(714) 453-0120 Dr. Claus Hecht, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 644-2800 Dr. Cory Hata, DOAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 644-2000 Dr. David Reid, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 827-3000 Dr. Dustin Marinelli, DOAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 600-0829 Dr. Emio Bond, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Erik Thurnher, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. George Baskevitch, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 827-3000 Dr. Gregory Sviland, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 774-1450 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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