NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hong C Nguyen, O.D.

Optometrist in San Jose, CA · enumerated 2008.

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

National Provider Identifier

1568617611

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Hong C Nguyen
Credential O.D.
Sex Female
Practice address 925 Blossom Hill Rd, Oakridge Mall #1451, San Jose, CA, 95123
Phone (408) 284-0140
Enumeration date Nov 17, 2008
Last updated in NPPES Nov 17, 2008

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 13543 (CA) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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

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.
What specialty is Hong Nguyen?
Hong 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-17.