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Long Nguyen

General Practice Dentistry in Herndon, VA · enumerated 2007 · practices at Mazin Alayssami, Dmd & Associates PC.

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

National Provider Identifier

1376600213

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Registry record

Entity type Individual (Type 1)
Name Long Nguyen
Sex Male
Practice address 13873 Park Center Rd, Herndon, VA, 20171
Phone (703) 478-0115
Enumeration date Jan 2, 2007
Last updated in NPPES Mar 27, 2025

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 0401411140 (VA) 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.

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Frequently asked questions

Where does Long Nguyen practice?
The practice location on file with NPPES is in Herndon, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Long Nguyen?
The National Provider Identifier (NPI) for Long Nguyen is 1376600213, 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 2025-03-27.