Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Joel Mendoza Dizon, O.D.

Optometrist in Tamuning, GU · enumerated 2012.

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

National Provider Identifier

1124383484

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Registry record

Entity type Individual (Type 1)

Name Mr. Joel Mendoza Dizon

Credential O.D.

Sex Male

Practice address 548 S Marine Corps Dr, Tamuning, GU, 96913

Phone (671) 646-5825

Fax (671) 647-3556

Enumeration date Jul 11, 2012

Last updated in NPPES Jul 11, 2012

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OL-026 (GU) 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.

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Frequently asked questions

How do I verify Joel Dizon's NPI record?

Cross-check NPI 1124383484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124383484 active?

Yes, as of the latest NPPES snapshot, NPI 1124383484 is active (record last updated 2012-07-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-11.