Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Duc Nguyen, DDS

Q: What is the NPI number for Duc Nguyen?

The National Provider Identifier (NPI) for Duc Nguyen is 1174720213, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Fremont, CA · enumerated 2007.

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

National Provider Identifier

1174720213

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Registry record

Entity type Individual (Type 1)

Name Duc Nguyen

Credential DDS

Sex Male

Practice address Fremont, CA, 94538

Phone (510) 438-9201

Fax (510) 651-8581

Enumeration date Jul 2, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 45507 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 Duc Nguyen practice?

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

What is the NPI number for Duc Nguyen?

The National Provider Identifier (NPI) for Duc Nguyen is 1174720213, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.