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Internal Medicine

Elena M. Nishimura, MD

Works at hospitals in South San Francisco, CA · California

Summary

Elena M. Nishimura, MD (Internal Medicine) is listed by Medicare at 1 hospital in South San Francisco, CA. NPI 1467546846. 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 Elena M. Nishimura, 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
29Years since medical school (graduated 1997)
University Of Texas Medical Branch At GalvestonMedical school
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Which hospitals does Elena M. Nishimura work at?
Medicare's official clinician data lists Elena M. Nishimura at 1 hospital: Kaiser Foundation Hospital - South San Francisco. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Elena M. Nishimura see patients?
Medicare's clinician data lists 4 practice locations, including Redwood City, CA and South San Francisco, CA. Call before your visit to confirm the address.
What is Elena M. Nishimura's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Elena M. Nishimura accept Medicare assignment?
Yes. Medicare's clinician data says Elena M. Nishimura 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 Elena M. Nishimura?
(650) 299-2000, as listed in official Medicare / NPI Registry data.
What is Elena M. Nishimura's NPI number?
1467546846. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Elena M. Nishimura works

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

Group practices

Medicare enrollment lists Elena M. Nishimura as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Redwood City

Clinicians with the same Medicare primary specialty in Redwood City, CA — not a recommendation.

All internal medicine doctors in Redwood City →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical Branch At Galveston
Graduation year1997
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467546846
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