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Calvin Alonzo, O.D., Inc

Q: What type of organization is Calvin Alonzo, O.D., Inc?

Calvin Alonzo, O.D., Inc is registered in NPPES as a Optometrist (its primary provider taxonomy).

Optometrist in Waipahu, HI · enumerated 2008 · authorized official Calvin Alonzo, President.

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

National Provider Identifier

1821264367

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Registry record

Entity type Organization (Type 2)

Legal business name Calvin Alonzo, O.D., Inc

Other name <Unavail>

Practice address 94-428 Mokuola St, Suite 102, Waipahu, HI, 96797

Phone (808) 677-7222

Fax (808) 677-3300

Enumeration date May 5, 2008

Last updated in NPPES Jan 22, 2009

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License OD573 (HI) Primary

Authorized official

Name Calvin Alonzo

Title President

Phone (808) 677-7222

Other identifiers

Identifier	Type	State	Issuer
1821264367	Other	HI	ORGANIZATION NPI

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 type of organization is Calvin Alonzo, O.D., Inc?

Calvin Alonzo, O.D., Inc is registered in NPPES as a Optometrist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-22.