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Hospitalist

Karimullah Bayanzay, MD

Works at hospitals in San Francisco, CA · California

Summary

Karimullah Bayanzay, MD (Hospitalist) is listed by Medicare at 2 hospitals in San Francisco, CA. NPI 1144717737. 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 Karimullah Bayanzay, 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

HospitalistPrimary specialty
YesAccepts Medicare assignment
10Years since medical school (graduated 2016)
MaleGender (as listed)
Regents of the University of CaliforniaGroup practice

Quick answers

Which hospitals does Karimullah Bayanzay work at?
Medicare's official clinician data lists Karimullah Bayanzay at 2 hospitals: UCSF Health St. Mary's Hospital and UCSF Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Karimullah Bayanzay see patients?
Medicare's clinician data lists 2 practice locations, including San Francisco, CA. Call before your visit to confirm the address.
What is Karimullah Bayanzay's specialty?
Medicare lists Hospitalist as the primary specialty.
Does Karimullah Bayanzay accept Medicare assignment?
Yes. Medicare's clinician data says Karimullah Bayanzay 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 Karimullah Bayanzay?
(415) 476-4029, as listed in official Medicare / NPI Registry data.
What is Karimullah Bayanzay's NPI number?
1144717737. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Karimullah Bayanzay works

Medicare's Facility Affiliation Data lists Karimullah Bayanzay 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 Karimullah Bayanzay is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Regents of the University of California732 clinicians in the group

Specialties

Find other Hospitalist doctors in California →

Other hospitalists in San Francisco

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

All hospitalists in San Francisco →

Clinician information

CredentialMD
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144717737
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