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Internal Medicine

Timothy Wong, MD

Sees patients in Pleasanton, CA · California

Summary

Timothy Wong, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Pleasanton, CA. NPI 1891874541. 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 Timothy Wong, 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
40Years since medical school (graduated 1986)
Un Of California, Irvine, College Of MedicineMedical school
MaleGender (as listed)
Axis Community Health IncGroup practice

Quick answers

Where does Timothy Wong see patients?
Medicare's clinician data lists 2 practice locations, including Pleasanton, CA. Call before your visit to confirm the address.
What is Timothy Wong's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Endocrinology.
Does Timothy Wong accept Medicare assignment?
Yes. Medicare's clinician data says Timothy Wong 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 Timothy Wong's NPI number?
1891874541. 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 Timothy Wong is enrolled with Medicare (CMS data updated 2026-10-02).

  • 5925 W Las Positas BlvdPleasanton, CA 94588
  • 5925 W Las Positas Blvd, Suite 100Pleasanton, CA 94588

Group practices

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

  • Axis Community Health Inc39 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Pleasanton

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

All internal medicine doctors in Pleasanton →

Clinician information

CredentialMD
Medical schoolUn Of California, Irvine, College Of Medicine
Graduation year1986
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891874541
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