Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Denise Nguyen
Optometrist in Westminster, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457977662
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Registry record
Entity type Individual (Type 1)
Name Denise Nguyen
Sex Female
Practice address 9600 Bolsa Ave Ste C, Westminster, CA, 92683
Phone (714) 775-7045
Enumeration date Jun 23, 2020
Last updated in NPPES Mar 6, 2024
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Denise Nguyen?
Denise Nguyen is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-06.