NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Doanh Andrew Nguyen, M.D.

Specialist in Fountain Valley, CA · enumerated 2006.

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

National Provider Identifier

1720090921

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Doanh Andrew Nguyen
Credential M.D.
Sex Male
Practice address 10760 Warner Ave Ste 201, Fountain Valley, CA, 92708
Fax (714) 593-5366
Enumeration date Aug 13, 2006
Last updated in NPPES Sep 23, 2022

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G80814 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
00G808140 Medicaid CA -

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

Where does Doanh Nguyen practice?
The practice location on file with NPPES is in Fountain Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Doanh Nguyen?
The National Provider Identifier (NPI) for Doanh Nguyen is 1720090921, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-23.