Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Russell Hiroshi Masunaga, DDS

Dentist in Honolulu, HI · enumerated 2005.

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

National Provider Identifier

1588661847

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Registry record

Entity type Individual (Type 1)

Name Dr. Russell Hiroshi Masunaga

Credential DDS

Sex Male

Practice address 2153 N King St, Ste 322, Honolulu, HI, 96819

Phone (808) 848-8880

Fax (808) 848-8814

Enumeration date Jul 1, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

122300000X Dentist Dental Providers · License D-1711 (HI) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1588661847 active?

Yes, as of the latest NPPES snapshot, NPI 1588661847 is active (record last updated 2026-07-13).

How do I verify Russell Masunaga's NPI record?

Cross-check NPI 1588661847 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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