Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leon Matsuo, MD

Internal Medicine Physician in Captain Cook, HI · enumerated 2007 · practices at Leon Matsuo MD Inc.

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

National Provider Identifier

1235334947

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Registry record

Entity type Individual (Type 1)

Name Leon Matsuo

Credential MD

Sex Male

Practice address 82-6066 Mamalahoa Hwy Ste 14, Captain Cook, HI, 96704

Phone (808) 825-6557

Fax (808) 731-6511

Enumeration date Jun 21, 2007

Last updated in NPPES Feb 19, 2026

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD-16101 (HI) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD-16101 (HI) Primary

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

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.

What specialty is Leon Matsuo?

Leon Matsuo is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Leon Matsuo MD Inc Internal Medicine Physician · Captain Cook, HI NPI 1073019162

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-19.