Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Cornelius Donkervoet, PH.D.
Clinical Psychologist in Pearl City, HI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134152580
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 532350 | Medicaid | HI | - |
| 53235000 | Other | HI | ALOHACARE |
| 0050240032 | Other | HI | HMSA |
| 0050240032 | Other | HI | HMSA-QUEST |
| 990298651-96706-C039 | 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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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.