Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tam-An Nguyen, O.D.

Optometrist in Placerville, CA · enumerated 2007.

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

National Provider Identifier

1114126927

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Registry record

Entity type Individual (Type 1)

Name Dr. Tam-An Nguyen

Credential O.D.

Sex Female

Practice address 4212 Missouri Flat Rd, Placerville, CA, 95667

Phone (530) 621-7700

Enumeration date Jul 12, 2007

Last updated in NPPES Oct 26, 2025

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 13315 (CA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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 Tam-An Nguyen practice?

The practice location on file with NPPES is in Placerville, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Tam-An Nguyen?

The National Provider Identifier (NPI) for Tam-An Nguyen is 1114126927, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-26.