NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Vi Phan

Optometrist in Stevenson Ranch, CA · enumerated 2022.

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

National Provider Identifier

1609521251

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Registry record

Entity type Individual (Type 1)
Name Vi Phan
Sex Female
Practice address 25450 the Old Rd, Stevenson Ranch, CA, 91381
Phone (661) 253-3662
Enumeration date Feb 12, 2022
Last updated in NPPES Jul 26, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 35078 (CA) 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

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 Vi Phan?
Vi Phan 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-26.