Andrew Nguyen, MD
NPI 1659021269 · Emergency Medicine Physician · San Dimas, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Nguyen, MD is a Emergency Medicine Physician provider in San Dimas, CA (NPI 1659021269).
Provider details
- NPI number
- 1659021269
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A201270 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 7901 Walker StLa Palma, CA 90623-1722Phone: (714) 670-7400
Registry dates
- Enumerated
- 2022-03-26
- Last updated
- 2025-06-26
- Certified
- 2025-06-26
Frequently asked questions
- What is Andrew Nguyen's NPI number?
- Andrew Nguyen's National Provider Identifier (NPI) is 1659021269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Nguyen's specialty?
- Andrew Nguyen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Nguyen located?
- Andrew Nguyen's practice location on file with NPPES is 1350 W Covina Blvd, San Dimas, CA 91773-3245.
- What is Andrew Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Andrew Nguyen is (909) 599-6811.
- Does Andrew Nguyen accept Medicare?
- Andrew Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Nguyen's NPI active?
- Yes — Andrew Nguyen's NPI (1659021269) is active in the NPPES registry as of the last update on 2025-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.