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Internal Medicine

Vuong H. Nguyen, MD

Works at hospitals in Garden Grove, CA · Huntington Beach, CA · Fountain Valley, CA … · California

Summary

Dr. Vuong H. Nguyen, MD is an internal medicine doctor at 13671 Beach Blvd, Suite A, Westminster, CA 92683. Phone: (714) 467-4321. Accepts Medicare assignment. In 2024, Vuong H. Nguyen had 516 Original Medicare patients and 4,703 services. NPI 1093701690. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Vuong H. Nguyen, 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 Vuong H. Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Vuong H. Nguyen 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.
How many Medicare patients does Vuong H. Nguyen see?
In 2024, CMS data shows 516 Original Medicare patients and 4,703 services for Vuong H. Nguyen. This counts Original Medicare only and measures volume, not quality.
What is Vuong H. Nguyen's NPI number?
1093701690. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Vuong H. Nguyen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients516
Services billed to Medicare4,703
Different services or procedures63
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month (99491)1,474 services
  2. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)934 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)565 services
  4. Insertion of needle into vein for collection of blood sample (36415)352 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)292 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Diabetes50%
  • Arthritis47%
  • Chronic kidney disease39%
  • Osteoporosis39%

Hospitals where Vuong H. Nguyen works

Medicare's Facility Affiliation Data lists Vuong H. Nguyen 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.

Practice locations

Addresses where Vuong H. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Vuong H. Nguyen as a member of this group (CMS data updated October 2, 2026).

  • Westminster Medical Office Inc2 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 →

Other clinicians in Westminster Medical Office Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Alabama School Of Medicine
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093701690
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians