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Otolaryngology

Quoc Nguyen, MD

Sees patients in Garden Grove, CA · California

Summary

Quoc Nguyen, MD (Otolaryngology) is enrolled with Medicare at 1 practice location in Garden Grove, CA. NPI 1659394419. 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 Quoc 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

OtolaryngologyPrimary specialty
YesAccepts Medicare assignment
35Years since medical school (graduated 1991)
Yale University School Of MedicineMedical school
MaleGender (as listed)

Quick answers

Where does Quoc Nguyen see patients?
Medicare's clinician data lists 1 practice location in Garden Grove, CA. Call before your visit to confirm the address.
What is Quoc Nguyen's specialty?
Medicare lists Otolaryngology as the primary specialty.
Does Quoc Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Quoc 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 Quoc Nguyen?
(714) 543-4471, as listed in official Medicare / NPI Registry data.
What is Quoc Nguyen's NPI number?
1659394419. 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 Quoc Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Otolaryngology doctors in California →

Other ENT doctors in California

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

All ENT doctors in California →

Clinician information

CredentialMD
Medical schoolYale University School Of Medicine
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659394419
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