NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lyn Tran

Optometrist in Castle Rock, CO · enumerated 2007.

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

National Provider Identifier

1295924629

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Registry record

Entity type Individual (Type 1)
Name Lyn Tran
Sex Female
Practice address 133 Sam Walton Ln, Suite Rr, Castle Rock, CO, 80104
Phone (303) 663-2029
Enumeration date Oct 22, 2007
Last updated in NPPES Aug 31, 2010

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2304 (CO) 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 Lyn Tran?
Lyn Tran 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 2010-08-31.