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

Internal Medicine

Hirofumi Hashimoto, MD

Works at hospitals in Santa Rosa, CA · California

Summary

Hirofumi Hashimoto, MD (Internal Medicine) is listed by Medicare at 1 hospital in Santa Rosa, CA. NPI 1104812585. 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 Hirofumi Hashimoto, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
33Years since medical school (graduated 1993)
Stanford University School Of MedicineMedical school
MaleGender (as listed)
Pacific Inpatient Medical GroupGroup practice

Quick answers

Which hospitals does Hirofumi Hashimoto work at?
Medicare's official clinician data lists Hirofumi Hashimoto at 1 hospital: Sutter Santa Rosa Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Hirofumi Hashimoto see patients?
Medicare's clinician data lists 1 practice location in San Francisco, CA. Call before your visit to confirm the address.
What is Hirofumi Hashimoto's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Hirofumi Hashimoto accept Medicare assignment?
Yes. Medicare's clinician data says Hirofumi Hashimoto 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 Hirofumi Hashimoto?
(415) 485-8824, as listed in official Medicare / NPI Registry data.
What is Hirofumi Hashimoto's NPI number?
1104812585. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Hirofumi Hashimoto works

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

Group practices

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

  • Pacific Inpatient Medical Group132 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Francisco

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

All internal medicine doctors in San Francisco →

Clinician information

CredentialMD
Medical schoolStanford University School Of Medicine
Graduation year1993
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104812585
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