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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 in Los Angeles774 providers
Anesthesiology in San Diego690 providers
Anesthesiology in San Francisco508 providers
Anesthesiology in Sacramento400 providers
Anesthesiology in Stanford389 providers
Anesthesiology in Orange272 providers
Anesthesiology in West Hollywood246 providers
Anesthesiology in Torrance136 providers
Anesthesiology in Oakland130 providers
Anesthesiology in San Jose127 providers
Anesthesiology in Loma Linda123 providers
Anesthesiology in Palo Alto113 providers
Anesthesiology in Walnut Creek100 providers
Anesthesiology in Newport Beach93 providers
Anesthesiology in Long Beach86 providers
Anesthesiology in Fresno81 providers
Anesthesiology in Modesto75 providers
Anesthesiology in Santa Barbara68 providers
Anesthesiology in Santa Rosa67 providers
Anesthesiology in Rancho Mirage60 providers
Anesthesiology in Pasadena60 providers
Anesthesiology in Riverside55 providers
Anesthesiology in Glendale51 providers
Anesthesiology in Bakersfield51 providers

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. Tony Ho, M.D.
Orange, CA · $40 in drug and device payments (2025) · (714) 633-9111
Dr. Trevor Whitwell
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7890
Dr. Trung Nguyen, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 277-1900
Dr. Tuan Ngo, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 880-7812
Dr. Veronika Anufreichik
Orange, CA · No drug or device payments recorded (2025) · (714) 456-6661
Dr. Viet Scott Nguyen, DO
Orange, CA · No drug or device payments recorded (2025) · (800) 465-3032
Dr. Vishal Vazirani, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7890
Dr. Vivek Gulati
Orange, CA · $10 in drug and device payments (2025) · (714) 456-6661
Dr. Vivian Tanaka, M.D.
Orange, CA · $277 in drug and device payments (2025) · (714) 633-9111
Dr. Wei Zhang, MD
Orange, CA · $42 in drug and device payments (2025) · (714) 744-0900
Dr. Winnie Ruo, M.D
Orange, CA · No drug or device payments recorded (2025) · (714) 744-0900
Dr. Wynnson Tom, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 633-0011
Dr. Yael Shinar
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8888
Dr. Yamah Amiri, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 880-7812
Dr. Yesenia Westrup, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8888
Dr. Yogesh Taheem, MD, MS
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7890
Dr. Yuichi Yokoyama, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 456-6661
Dr. Hank Sun, MD
Orinda, CA · $20 in drug and device payments (2025) · (720) 320-5826
Dr. Charles Reiman, MD
Oroville, CA · No drug or device payments recorded (2025) · (530) 533-8500
Dr. David Aguilar, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Douglas Yoon, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 204-5000
Dr. Eli Matthews
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Gary Smith, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 485-1908
Dr. Jon Belleville, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2818
Dr. Kent Swanson, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Mark Harlacher, M.D.
Oxnard, CA · $251 in drug and device payments (2025) · (805) 988-2500
Dr. Mary Cantrell, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 815-4575
Dr. Mary Vreeke, M.D.
Oxnard, CA · $16 in drug and device payments (2025) · (805) 988-2500
Dr. Melissa Arbar, DO
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Nivedita Wallace, M.D.
Oxnard, CA · $14 in drug and device payments (2025) · (805) 988-2500
Dr. Parvinjit Dhaliwal, D.O.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Randall Holtby, M.D.
Oxnard, CA · $144 in drug and device payments (2025) · (805) 988-2500
Dr. Robert Martin, M.D.
Oxnard, CA · $120 in drug and device payments (2025) · (805) 988-2818
Dr. Shannon Ong, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Sharad Sharma, MD
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Sona Parikh, MD
Oxnard, CA · No drug or device payments recorded (2025) · (805) 754-0124
Dr. Tejal Patel, M.D.
Oxnard, CA · $18 in drug and device payments (2025) · (805) 988-2500
Dr. Thomas Doria, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. Thomas Wiggins, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 485-1908
Dr. Vance Kalcic, M.D.
Oxnard, CA · $45 in drug and device payments (2025) · (805) 988-2500
Dr. William Berard, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2500
Dr. William Tellez, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-2818
Dr. Arthur Lochridge, MD
Pacific Grove, CA · No drug or device payments recorded (2025) · (831) 373-6977
Dr. Afsaneh Andrews, M.D.
Pacific Palisades, CA · No drug or device payments recorded (2025) · (310) 383-3317
Dr. Alan Chagy, M.D.
Pacific Palisades, CA · No drug or device payments recorded (2025) · (310) 454-8235
Dr. Il Sung Won, M.D.
Pacific Palisades, CA · No drug or device payments recorded (2025) · (213) 500-9554
Dr. Naomi Saucier, M.D.
Pacific Palisades, CA · No drug or device payments recorded (2025) · (310) 454-9583
Dr. Ockja Won, M.D.
Pacific Palisades, CA · No drug or device payments recorded (2025) · (213) 500-2377
Dr. Victoria Danhakl, MD
Pacific Palisades, CA · No drug or device payments recorded (2025) · (310) 993-2553
Dr. Brandon Stark, MD
Palmdale, CA · No drug or device payments recorded (2025) · (661) 382-5000

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.

Related reading on HealthcareDiscovery.AI

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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 Anesthesiology in California? Get featured.