Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Anesthesiology

Bonnie Yen, MD

Works at hospitals in San Francisco, CA · California

Summary

Bonnie Yen, MD (Anesthesiology) is listed by Medicare at 1 hospital in San Francisco, CA. NPI 1871055079. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Bonnie Yen, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
Columbia University College Of Physicians And SurgeonsMedical school
FemaleGender (as listed)
University Anesthesia Medical GroupGroup practice

Quick answers

Which hospitals does Bonnie Yen work at?
Medicare's official clinician data lists Bonnie Yen at 1 hospital: UCSF Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Bonnie Yen see patients?
Medicare's clinician data lists 2 practice locations, including San Francisco, CA. Call before your visit to confirm the address.
What is Bonnie Yen's specialty?
Medicare lists Anesthesiology as the primary specialty.
Does Bonnie Yen accept Medicare assignment?
Yes. Medicare's clinician data says Bonnie Yen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Bonnie Yen?
(415) 476-1000, as listed in official Medicare / NPI Registry data.
What is Bonnie Yen's NPI number?
1871055079. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Bonnie Yen works

Medicare's Facility Affiliation Data lists Bonnie Yen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Bonnie Yen is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Bonnie Yen as a member of this group (CMS data updated 2026-10-02).

  • University Anesthesia Medical Group408 clinicians in the group

Specialties

Find other Anesthesiology doctors in California →

Other anesthesiologists in San Francisco

Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.

All anesthesiologists in San Francisco →

Clinician information

CredentialMD
Medical schoolColumbia University College Of Physicians And Surgeons
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871055079
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians