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Hospitalist

David Nguyen, DO

Works at hospitals in Tustin, CA · Monterey Park, CA · San Gabriel, CA … · California

Summary

David Nguyen, DO (Hospitalist) is listed by Medicare at 4 hospitals in Tustin, CA, Monterey Park, CA and San Gabriel, CA and other places. NPI 1669961801. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about David 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

HospitalistPrimary specialty
May acceptAccepts Medicare assignment
8Years since medical school (graduated 2018)
William Carey University College Of Osteopathic MedicineMedical school
MaleGender (as listed)

Quick answers

Which hospitals does David Nguyen work at?
Medicare's official clinician data lists David Nguyen at 4 hospitals: Foothill Regional Medical Center, Garfield Medical Center, San Gabriel Valley Medical Center and USC Arcadia Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does David Nguyen see patients?
Medicare's clinician data lists 1 practice location in Alhambra, CA. Call before your visit to confirm the address.
What is David Nguyen's specialty?
Medicare lists Hospitalist as the primary specialty.
Does David Nguyen accept Medicare assignment?
Medicare's clinician data says David Nguyen may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is David Nguyen's NPI number?
1669961801. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where David Nguyen works

Medicare's Facility Affiliation Data lists David Nguyen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where David Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).

  • 1680 S Garfield Ave, Suite 204Alhambra, CA 91801

Specialties

Find other Hospitalist doctors in California →

Other hospitalists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All hospitalists in California →

Clinician information

CredentialDO
Medical schoolWilliam Carey University College Of Osteopathic Medicine
Graduation year2018
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1669961801
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians