Quick answers
- Where does Dat M. Nguyen see patients?
- Medicare's clinician data lists 2 practice locations, including Westminster, CA. Call before your visit to confirm the address.
- What is Dat M. Nguyen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Dat M. Nguyen accept Medicare assignment?
- Medicare's clinician data says Dat M. Nguyen may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Dat M. Nguyen?
- (714) 531-2548, as listed in official Medicare / NPI Registry data.
- What is Dat M. Nguyen's NPI number?
- 1871730895. 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 Dat M. Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).
- 14536 Brookhurst StWestminster, CA 92683 (714) 531‑2548
- 14536 Brookhurst St, Suite 102Westminster, CA 92683
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Westminster
Clinicians with the same Medicare primary specialty in Westminster, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1975 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1871730895 |
| Corrections | Report 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians