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

Family Practice

An T. Tran, MD

Works at hospitals in Oakland, CA · Castro Valley, CA · California

Summary

Dr. An T. Tran, MD is a family doctor at 818 Webster St, Oakland, CA 94607. Phone: (510) 986-6800. Accepts Medicare assignment. NPI 1568602977. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about An T. Tran, 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 An T. Tran accept Medicare assignment?
Yes. Medicare's clinician data says An T. Tran accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is An T. Tran's NPI number?
1568602977. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where An T. Tran works

Medicare's Facility Affiliation Data lists An T. Tran at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050043
  • Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488

Practice locations

Addresses where An T. Tran is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists An T. Tran as a member of this group (CMS data updated October 2, 2026).

  • Asian Health Services94 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in Oakland

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

All family doctors in Oakland →

Other clinicians in Asian Health Services

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2006 (20 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1568602977
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians