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. Peter Anderson, MDFountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Robert Cockrell, MDFountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Ronald Hitzfield, M.D.Fountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 378-7535 Dr. Stephen Morenz, MDFountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Theresa Maestas, MDFountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Thomas Lebby, MDFountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Wing Quon, M.D.Fountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 378-7535 Dr. Adele Hultin, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 795-3000 Dr. Aneema Van Groenou, MDFremont, CA · No drug or device payments recorded (2025) · Telehealth ·
(510) 795-3000 Dr. Betty Chu, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 795-3000 Dr. David Freiheit, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. David Orenberg, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Duc Tran, D.OFremont, CA · No drug or device payments recorded (2025) ·
(510) 896-9004 Dr. Frank Zeidan, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Harry Andrews, MDFremont, CA · $125 in drug and device payments (2025) ·
(510) 791-3430 Dr. Jamey Rock, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 795-3000 Dr. Jeffrey Lenchner, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Kadeer Halimi, D.O.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 791-5376 Dr. Kai Li, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. Katya De SouzaFremont, CA · No drug or device payments recorded (2025) ·
(510) 248-3000 Dr. Kevin Morrissey, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Kristi Tran, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 248-3000 Dr. Lauren Auerbach, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. Leif Canfield, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 795-3000 Dr. Lisa Minshall, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 795-3000 Dr. Mihir Meghani, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 248-7207 Dr. Mohan SakhraniFremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. Naveenpal Bhatti, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Neal Dickler, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Peter Tom, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Sabrina Sood, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. Stephen Montgomery, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Stephen Shih, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 490-2800 Dr. Sun Lin, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 248-3000 Dr. Usha Rengarajan, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. William Busby, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 791-3430 Dr. Youssef Youssef, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 795-2013 Dr. Alexander Wisbeck, MDFrench Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6000 Dr. Carol's Montes-rouse, MDFrench Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6428 Dr. Clayton Benson, M.D.French Camp, CA · $24 in drug and device payments (2025) ·
(209) 468-6000 Dr. Fei Lu Ye, M.DFrench Camp, CA · No drug or device payments recorded (2025) ·
(510) 350-2600 Dr. Jessica Willett, M.D.French Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6000 Dr. John Croft, PAFrench Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6306 Dr. Joseph IzzoFrench Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6000 Dr. Karen Philippi, M.D.French Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6937 Dr. Katherine Shafer, M.D.French Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6300 Dr. Samuel DixonFrench Camp, CA · No drug or device payments recorded (2025) · Telehealth ·
(209) 468-6301 Dr. Ziad Ali, M.D.French Camp, CA · $1,819 in drug and device payments (2025) ·
(209) 468-6600 Dr. Adriel Green, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 450-5379 Dr. Alan Givertz, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 450-3205 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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