Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Eugene Frank Demayo, O.D.

Optometrist in Boulder, CO · enumerated 2005 · practices at Tom'S Sportique Eyewear.

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

National Provider Identifier

1083607345

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Registry record

Entity type Individual (Type 1)

Name Dr. Eugene Frank Demayo

Credential O.D.

Sex Male

Practice address 3121 28th St, Boulder, CO, 80301

Phone (303) 938-1500

Fax (303) 938-9458

Enumeration date Aug 23, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1160 (CO) Primary

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 1160 (CO) Secondary

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.

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Frequently asked questions

Where does Eugene Demayo practice?

The practice location on file with NPPES is in Boulder, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Eugene Demayo?

The National Provider Identifier (NPI) for Eugene Demayo is 1083607345, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Tom'S Sportique Eyewear Durable Medical Equipment & Medical Supplies · Boulder, CO NPI 1760616148

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.