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Internal Medicine

Dao B. Nguyen, MD

Sees patients in Westminster, CA · California

Summary

Dao B. Nguyen, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Westminster, CA. NPI 1811948680. 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 Dao B. Nguyen, 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
50Years since medical school (graduated 1976)
FemaleGender (as listed)
Family Choice Aco IncGroup practice

Quick answers

Where does Dao B. Nguyen see patients?
Medicare's clinician data lists 1 practice location in Westminster, CA. Call before your visit to confirm the address.
What is Dao B. Nguyen's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Pulmonary Disease.
Does Dao B. Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Dao B. Nguyen 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 Dao B. Nguyen?
(714) 898-0765, as listed in official Medicare / NPI Registry data.
What is Dao B. Nguyen's NPI number?
1811948680. 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 Dao B. Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Dao B. Nguyen as a member of this group (CMS data updated 2026-10-02).

  • Family Choice Aco Inc55 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Westminster

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

All internal medicine doctors in Westminster →

Clinician information

CredentialMD
Graduation year1976
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811948680
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