Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Bang Nguyen, MD

Works at hospitals in Fullerton, CA · California

Summary

Bang Nguyen, MD (Internal Medicine) is listed by Medicare at 1 hospital in Fullerton, CA. NPI 1861477044. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Bang 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
31Years since medical school (graduated 1995)
College Of Osteo Med Of The Pacific At PomonaMedical school
MaleGender (as listed)
Providence Medical FoundationGroup practice

Quick answers

Which hospitals does Bang Nguyen work at?
Medicare's official clinician data lists Bang Nguyen at 1 hospital: Providence St. Jude Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Bang Nguyen see patients?
Medicare's clinician data lists 2 practice locations, including Fullerton, CA. Call before your visit to confirm the address.
What is Bang Nguyen's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Bang Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Bang 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 Bang Nguyen?
(714) 871-3006, as listed in official Medicare / NPI Registry data.
What is Bang Nguyen's NPI number?
1861477044. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Bang Nguyen works

Medicare's Facility Affiliation Data lists Bang 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 Bang Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Providence Medical Foundation1,466 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Fullerton

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

All internal medicine doctors in Fullerton →

Clinician information

CredentialMD
Medical schoolCollege Of Osteo Med Of The Pacific At Pomona
Graduation year1995
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861477044
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