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Dr. Holly Nguyen, DDS

General Practice Dentistry in Rancho Santa Margarita, CA · enumerated 2006 · practices at Reagan Dental Corporation.

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

National Provider Identifier

1053421594

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Registry record

Entity type Individual (Type 1)
Name Dr. Holly Nguyen
Credential DDS
Sex Female
Practice address 30592 Santa Margarita Pkwy, Ste. D, Rancho Santa Margarita, CA, 92688
Phone (949) 766-5740
Fax (949) 766-6506
Enumeration date Aug 30, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 48524 (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.

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Frequently asked questions

What is the NPI number for Holly Nguyen?
The National Provider Identifier (NPI) for Holly Nguyen is 1053421594, a Type 1 (individual) record in the CMS NPPES registry.
Where does Holly Nguyen practice?
The practice location on file with NPPES is in Rancho Santa Margarita, 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.