NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Cheslyn Gan Optometrist Inc

Optometrist in Walnut Creek, CA · enumerated 2021 · authorized official Cheslyn Gan, President.

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

National Provider Identifier

1144891714

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Cheslyn Gan Optometrist Inc
Practice address 1553 Palos Verdes Mall, Walnut Creek, CA, 94597
Fax (925) 934-9383
Enumeration date Jul 6, 2021
Last updated in NPPES Jul 6, 2021

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

Authorized official

Name Cheslyn Gan
Title President

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 is the NPI number for Cheslyn Gan Optometrist Inc?
The NPI for Cheslyn Gan Optometrist Inc is 1144891714, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Cheslyn Gan Optometrist Inc?
NPPES lists Cheslyn Gan (President) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-06.