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Obstetrics/Gynecology

Hanh Nguyen Do, MD

Sees patients in Modesto, CA · Fremont, CA · California

Summary

Dr. Hanh Nguyen Do, MD is an OB-GYN at 1441 Florida Ave, Modesto, CA 95350. Phone: (209) 578-1211. Accepts Medicare assignment. NPI 1003907338. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1441 Florida Ave, Modesto, CA 95350 · Directions (1 more location)
  • Phone: (209) 578‑1211
  • Medicare: Accepts Medicare assignment
  • Group practice: First Choice Physician Partners (+1 more)
  • Medical school: University Of California, Geffen School Of Medicine · graduated 1996 (30 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Hanh Nguyen Do, 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 Hanh Nguyen Do accept Medicare assignment?
Yes. Medicare's clinician data says Hanh Nguyen Do 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 Hanh Nguyen Do's NPI number?
1003907338. 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 Hanh Nguyen Do is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hanh Nguyen Do as a member of these groups (CMS data updated October 2, 2026).

  • First Choice Physician Partners127 clinicians in the group
  • Washington Township Medical Foundation117 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Modesto

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

All OB-GYNs in Modesto →

Other clinicians in First Choice Physician Partners

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year1996 (30 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003907338
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