Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andy Nguyen

Endocrinology, Diabetes & Metabolism Physician in Westminster, CA · enumerated 2016 · practices at Care First Medical Group Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1851746028

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Registry record

Entity type Individual (Type 1)

Name Andy Nguyen

Sex Male

Practice address 9211 Bolsa Ave Ste 221, Westminster, CA, 92683

Phone (714) 898-9966

Enumeration date Apr 25, 2016

Last updated in NPPES Nov 1, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A17347 (CA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 20A17347 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Andy Nguyen's NPI record?

Cross-check NPI 1851746028 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1851746028 active?

Yes, as of the latest NPPES snapshot, NPI 1851746028 is active (record last updated 2021-11-01).

Other providers at this practice address

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Care First Medical Group Inc Endocrinology, Diabetes & Metabolism Physician · Westminster, CA NPI 1538831235

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-01.