Anesthesiologists in California
Data updated monthly · Last refresh October 2026
7,627 Anesthesiology providers practice in California, including 106 (1%) 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.
7,627providers
106telehealth
Los Angelestop city
Anesthesiology by city in California
Choose a city to see providers there.
Anesthesiology 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. Melissa Ennen, M.D.Walnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 932-6330 Dr. Michael Ennis, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Michael Hernandez, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(800) 660-7983 Dr. Michael Klemm, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Michael MaloneyWalnut Creek, CA · No drug or device payments recorded (2025) ·
(347) 512-3134 Dr. Michele Collier, MDWalnut Creek, CA · $104 in drug and device payments (2025) ·
(925) 939-3000 Dr. Miguel Valencia, D.O.Walnut Creek, CA · $28 in drug and device payments (2025) ·
(925) 939-3000 Dr. Mohit Bhatt, DOWalnut Creek, CA · $266 in drug and device payments (2025) ·
(925) 939-3000 Dr. Nitin KumarWalnut Creek, CA · $612 in drug and device payments (2025) ·
(925) 939-3000 Dr. Oscar Fernandez, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Parminder Chopra, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Paul Pabst, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Prakash Raygor, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Radhika Annadata, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Ralph Berten, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Randall Kan, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Ray Engstrom, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Rebecca Krisman, M.D., M.P.H.Walnut Creek, CA · $47 in drug and device payments (2025) ·
(925) 295-9000 Dr. Reid Rubsamen, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Richard Fraioli, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Robert Laverne, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Robert Pike, MEDICAL DOCTORWalnut Creek, CA · $18 in drug and device payments (2025) ·
(925) 939-3000 Dr. Roger Cornwall, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Ryan Green, M.D., PH.D.Walnut Creek, CA · $2,089 in drug and device payments (2025) ·
(925) 543-0140 Dr. Ryan Suda, M.D.Walnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Sabrina Martinez, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Samantha Ng, M.D.Walnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Samir Dzankic, MDWalnut Creek, CA · $165 in drug and device payments (2025) ·
(925) 939-3000 Dr. Sandhya Ravichandran, M.D.Walnut Creek, CA · No drug or device payments recorded (2025) ·
(801) 440-8937 Dr. San-san Yu, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. San Yuan, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Sarah Cameron, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Sarah Joo, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4070 Dr. Satsimran Thind, D.O.Walnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Stephanie Wong, M.D.Walnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Steven Chang, M.D.Walnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 543-0140 Dr. Steven Jacobs, MDWalnut Creek, CA · $24 in drug and device payments (2025) ·
(924) 939-3000 Dr. Tamara Jurson, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 951-1366 Dr. Tenzing Lama, MD, MSCRESWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Thomas Burns, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 295-4000 Dr. Thomas Philbert, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. William Longton, MDWalnut Creek, CA · $74 in drug and device payments (2025) · Telehealth ·
(925) 939-3000 Dr. Young Sin Lin, M.D.Walnut Creek, CA · $125 in drug and device payments (2025) ·
(415) 443-2564 Dr. Yun Sok Choi, MDWalnut Creek, CA · No drug or device payments recorded (2025) ·
(925) 939-3000 Dr. Adam Montagna, MDWatsonville, CA · No drug or device payments recorded (2025) ·
(831) 724-4741 Dr. Alexander Tsavaler, M.D.Watsonville, CA · No drug or device payments recorded (2025) ·
(831) 724-4741 Dr. Brian Davia, DOWatsonville, CA · No drug or device payments recorded (2025) ·
(831) 724-4741 Dr. Iris Ko, MDWatsonville, CA · $14 in drug and device payments (2025) ·
(831) 724-4741 Dr. Omid Emam, MDWatsonville, CA · $17 in drug and device payments (2025) ·
(831) 724-4741 Dr. Cara Baker, MDWest Covina, CA · No drug or device payments recorded (2025) ·
(626) 962-4011 Common questions
How many Anesthesiology providers are in California?There are 7,627 Anesthesiology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Anesthesiology providers in California offer telehealth?Yes. 106 of the 7,627 Anesthesiology providers in California (about 1%) report offering telehealth services in CMS data.
Which cities in California have the most Anesthesiology providers?Los Angeles (774), San Diego (690), San Francisco (508) have the highest concentration of Anesthesiology providers in California.
How many Anesthesiology providers in California received drug or device company payments?2,112 of 7,627 Anesthesiology providers in California (28%) 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 Anesthesiologists in California work in independent practices or large health systems?Among 4,562 Anesthesiologists in California enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 24% through a mid-size group of 10 to 99, and 68% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Anesthesiologists in California work at?According to CMS facility affiliation records, the California hospitals where the most Anesthesiologists hold privileges are Stanford Health Care in Stanford; Cedars-Sinai Medical Center in Los Angeles; Uci Health-Orange in Orange.
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