NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Denis T.C. Chan

Ph.D. Medical Genetics in Waipahu, HI · enumerated 2007.

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

National Provider Identifier

1962614768

Verified

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Registry record

Entity type Individual (Type 1)
Name Denis T.C. Chan
Sex Male
Practice address Waipahu, HI, 96797
Fax (808) 671-7155
Enumeration date May 4, 2007
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

170100000X Ph.D. Medical Genetics Other Service Providers · License 2065 (HI) Primary

Other identifiers

Identifier Type State Issuer
030931-01 Medicaid HI -
0003437-1 Other HI HMSA,Q,HMA,UHA

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 is the NPI number for Denis Chan?
The National Provider Identifier (NPI) for Denis Chan is 1962614768, a Type 1 (individual) record in the CMS NPPES registry.
Where does Denis Chan practice?
The practice location on file with NPPES is in Waipahu, HI. Providers can have multiple locations; NPPES lists the primary practice address.

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