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Internal Medicine

Justin Chuang, MD

Sees patients in Pleasanton, CA · California

Summary

Dr. Justin Chuang, MD is an internal medicine doctor at 5820 Owens Dr, Pleasanton, CA 94588. May accept Medicare assignment. NPI 1205368537. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 5820 Owens Dr, Pleasanton, CA 94588 · Directions
  • Medicare: May accept Medicare assignment
  • Medical school: Jc Edwards School Of Medicine, Marshall University · graduated 2017 (9 years since medical school)
  • Gender (as listed): Male
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Justin Chuang, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Justin Chuang accept Medicare assignment?
Medicare's clinician data says Justin Chuang may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Justin Chuang's NPI number?
1205368537. 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 Justin Chuang is enrolled with Medicare (CMS data updated October 2, 2026).

  • 5820 Owens DrPleasanton, CA 94588

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 schoolJc Edwards School Of Medicine, Marshall University
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1205368537
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 October 2, 2026, retrieved October 29, 2026
  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