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. Michael Reinhard, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 571-4000 Dr. Michael Tran, MDSanta Rosa, CA · $139 in drug and device payments (2025) · Telehealth ·
(707) 546-7979 Dr. Morgan Welch, D.O.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 623-9803 Dr. Natalia Balytsky, M.D.Santa Rosa, CA · $570 in drug and device payments (2025) · Telehealth ·
(707) 591-0619 Dr. Nimesh Patel, DOSanta Rosa, CA · $18 in drug and device payments (2025) ·
(707) 522-1800 Dr. Ognjen Katan, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 547-4608 Dr. Peter Sybert, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 546-3210 Dr. Peter Thornhill, MD, MSSanta Rosa, CA · $17 in drug and device payments (2025) ·
(707) 524-4690 Dr. Philip Wilkinson, M.B.,B.S.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 578-4100 Dr. Richard Pollock, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(248) 978-4437 Dr. Richard Strunin, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 546-3210 Dr. Ripika Bedi, DOSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 522-1800 Dr. Roberto Neisa, M.D.Santa Rosa, CA · $17 in drug and device payments (2025) ·
(707) 522-1800 Dr. Robert Wood, MDSanta Rosa, CA · $49 in drug and device payments (2025) ·
(707) 546-3210 Dr. Scott Sewell, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 584-8000 Dr. Stephen Arietta, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 571-4000 Dr. Steve Marlowe, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 576-4000 Dr. Theodore Mckean, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 576-4000 Dr. Vu Duong, M.D.Santa Rosa, CA · $56 in drug and device payments (2025) ·
(707) 576-4000 Dr. Wei Der Wu, M.D.Santa Rosa, CA · $36 in drug and device payments (2025) ·
(707) 571-4000 Dr. Yeh-kuang Tsai, MDSanta Rosa, CA · $36 in drug and device payments (2025) ·
(707) 546-3210 Dr. Yogita Mosalpuria, MDSanta Rosa, CA · $265 in drug and device payments (2025) ·
(707) 522-1800 Dr. Jovita Carpio, M.D.Saratoga, CA · No drug or device payments recorded (2025) ·
(408) 996-9481 Dr. Robert Fischer, MDSaratoga, CA · No drug or device payments recorded (2025) ·
(408) 446-0227 Dr. Fiona Clements, MDSausalito, CA · No drug or device payments recorded (2025) ·
(415) 302-2666 Dr. Stephen Westerhout, MDSeal Beach, CA · $26 in drug and device payments (2025) ·
(949) 350-0115 Dr. David Benefiel, M.D.Sebastopol, CA · No drug or device payments recorded (2025) ·
(707) 824-9050 Dr. Kenneth Economy, MDSebastopol, CA · No drug or device payments recorded (2025) ·
(707) 823-7628 Dr. Jeffery Peak, M.D.Sherman Oaks, CA · No drug or device payments recorded (2025) ·
(818) 550-0900 Dr. Jonathan Kohan, MDSherman Oaks, CA · $196 in drug and device payments (2025) · Telehealth ·
(818) 788-2400 Dr. Scott Bickman, M.D.Sherman Oaks, CA · No drug or device payments recorded (2025) ·
(818) 550-0900 Dr. Jonathan Kelley, M.D.Sierra Madre, CA · No drug or device payments recorded (2025) ·
(626) 355-1984 Dr. John Grauch, M.D.Simi Valley, CA · $14 in drug and device payments (2025) ·
(626) 696-1134 Dr. Kanakavalli Iyer, M.D.Simi Valley, CA · No drug or device payments recorded (2025) ·
(805) 955-6900 Dr. Kyo Chu, M.D.Simi Valley, CA · No drug or device payments recorded (2025) ·
(805) 955-6900 Dr. Martha Donovan, M.D.Simi Valley, CA · No drug or device payments recorded (2025) ·
(805) 955-6900 Dr. Mitchell Solomon, M.D.Simi Valley, CA · $19 in drug and device payments (2025) ·
(805) 955-6900 Dr. Rajiv Budden, MDSimi Valley, CA · No drug or device payments recorded (2025) ·
(805) 306-8800 Dr. Vivek Ullal, M.D.Simi Valley, CA · No drug or device payments recorded (2025) ·
(805) 955-6900 Dr. Zaheer Zaidi, M.D.Simi Valley, CA · No drug or device payments recorded (2025) ·
(805) 955-6000 Dr. Jeffrey Magnes, M.D.Solvang, CA · No drug or device payments recorded (2025) ·
(805) 688-6431 Dr. Katharyn Hagen, M.D.Solvang, CA · No drug or device payments recorded (2025) ·
(805) 686-3965 Dr. Michael Lipson, M.D.Sonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5000 Dr. Michael Wymore, MDSonoma, CA · No drug or device payments recorded (2025) ·
(707) 938-6556 Dr. Richard Raley, M.D.Sonoma, CA · No drug or device payments recorded (2025) ·
(707) 938-7076 Dr. Vincent Sansone, MDSonoma, CA · No drug or device payments recorded (2025) ·
(707) 935-5000 Dr. Charles Wright, M.D.Sonora, CA · No drug or device payments recorded (2025) ·
(209) 536-3514 Dr. Roy Opsahl, MDSonora, CA · No drug or device payments recorded (2025) ·
(209) 536-3514 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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