Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Chan, O.D.

Optometrist in Henderson, NV · enumerated 2014.

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

National Provider Identifier

1790185932

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Registry record

Entity type Individual (Type 1)

Name John Chan

Credential O.D.

Sex Male

Practice address 695 S Green Valley Pkwy, Henderson, NV, 89052

Phone (909) 263-3465

Enumeration date Aug 25, 2014

Last updated in NPPES Feb 26, 2020

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 15099 (CA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 975 (NV) 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

What specialty is John Chan?

John Chan 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-26.