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.

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Andrew Nguyen, MD

NPI 1659021269 · Emergency Medicine Physician · San Dimas, CA

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)

Practice location

1350 W Covina Blvd

San Dimas, CA 91773-3245

Phone: (909) 599-6811

Street-level locationGet directions

More CA providers

Mailing address

1350 W Covina Blvd

San Dimas, CA 91773-3245

Specialties & taxonomies

Emergency Medicine PhysicianPrimary207P00000XLicense A201270 (CA)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

7901 Walker St
La Palma, CA 90623-1722
Phone: (714) 670-7400

Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(66/100 index)

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.

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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Frequently asked questions