Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Guy Hirayama, M.D.

Pediatrics Physician in Wailuku, HI · enumerated 2006.

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

National Provider Identifier

1679594980

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Registry record

Entity type Individual (Type 1)

Name Guy Hirayama

Credential M.D.

Sex Male

Practice address 2180 Main St, Wailuku, HI, 96793

Phone (808) 242-6464

Fax (808) 243-2385

Enumeration date Jul 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD4588 (HI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
016121	Other	HI	HMSA-65CP-HMSA QUEST
99017685996793B077	Other	HI	TRICARE
01503601	Other	HI	ALOHA CARE QUEST
01503601	Medicaid	HI	-
197743	Other	HI	UHA
4588	Other	HI	TRICARE

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 specialty is Guy Hirayama?

Guy Hirayama is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.