Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Leonard Tyrone Mason, PA-C
Physician Assistant in Honolulu, HI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912977455
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Registry record
Entity type Individual (Type 1)
Name Mr. Leonard Tyrone Mason
Credential PA-C
Sex Male
Practice address Tripler Army Medical Center, 1 Jarrett White Road, Honolulu, HI, 96859
Phone (808) 433-4720
Enumeration date Jan 26, 2006
Last updated in NPPES Jan 2, 2024
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10003571 (WA) Primary
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.
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 Leonard Mason?
Leonard Mason is registered in NPPES with the primary taxonomy of Physician Assistant. 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-02.