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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sean Guillen, LICENSED OPTICIAN

Optician in Las Vegas, NV · enumerated 2023.

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

National Provider Identifier

1720770258

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Registry record

Entity type Individual (Type 1)
Name Sean Guillen
Credential LICENSED OPTICIAN
Sex Male
Practice address Las Vegas, NV, 89102
Phone (702) 258-5060
Enumeration date May 23, 2023
Last updated in NPPES May 23, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License 570 (NV) 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

What is the NPI number for Sean Guillen?
The National Provider Identifier (NPI) for Sean Guillen is 1720770258, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sean Guillen practice?
The practice location on file with NPPES is in Las Vegas, NV. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-23.