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Anesthesiology in San Francisco, California

Data updated monthly · Last refresh September 2026

508 Anesthesiology providers practice in San Francisco, and 16% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Anesthesiology providers in San Francisco

Listed alphabetically. 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. William Halsey, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 719-0000
Dr. William Ng, M.B.B.S. (M.D.)
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-9035
Dr. William Shapiro, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 885-7626
Dr. William Spina, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 668-1000
Dr. Wilson Ly, MD, PHARMD
San Francisco, CA · $32 in drug and device payments (2025) · (415) 476-1000
Dr. Zachary Lerner, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-9035
Dr. Zhe Chen, MD
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-8000
Dr. Zhonghui Guan, MD
San Francisco, CA · $260 in drug and device payments (2025) · Telehealth · (415) 885-7246

Common questions

How many Anesthesiology providers are in San Francisco, California?

There are 508 Anesthesiology providers with active NPI records practicing in San Francisco, according to federal NPPES data refreshed monthly.

How many Anesthesiology providers in San Francisco received drug or device company payments?

83 of 508 (16%) 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 records 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.

All specialties in San Francisco Anesthesiology across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.