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

Dr. Dave Hoaiphuong Nguyen, D.M.D

General Practice Dentistry in Tustin, CA · enumerated 2007 · practices at Davenguyen Dmd, Inc.

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

National Provider Identifier

1003031972

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Registry record

Entity type Individual (Type 1)
Name Dr. Dave Hoaiphuong Nguyen
Credential D.M.D
Sex Male
Practice address Tustin, CA, 92780
Phone (714) 838-1280
Fax (714) 838-1264
Enumeration date Apr 16, 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 52761 (CA) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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.

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Frequently asked questions

What is the NPI number for Dave Nguyen?
The National Provider Identifier (NPI) for Dave Nguyen is 1003031972, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dave Nguyen practice?
The practice location on file with NPPES is in Tustin, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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