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Internal Medicine

Ei Tun, MD

Sees patients in Santa Clara, CA · California

Summary

Ei Tun, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Santa Clara, CA. NPI 1184366775. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ei Tun, 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
15Years since medical school (graduated 2011)
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Where does Ei Tun see patients?
Medicare's clinician data lists 1 practice location in Santa Clara, CA. Call before your visit to confirm the address.
What is Ei Tun's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Ei Tun accept Medicare assignment?
Yes. Medicare's clinician data says Ei Tun 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 Ei Tun?
(408) 851-1000, as listed in official Medicare / NPI Registry data.
What is Ei Tun's NPI number?
1184366775. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

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

Group practices

Medicare enrollment lists Ei Tun 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 Santa Clara

Clinicians with the same Medicare primary specialty in Santa Clara, CA — not a recommendation.

All internal medicine doctors in Santa Clara →

Clinician information

CredentialMD
Graduation year2011
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184366775
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians