NPI registry status
Active
2026 NPPES data Clinical Psychologist NPI 1134152580 PH.D.
Verify on CMS → John Donkervoet, PH.D.
Clinical Psychologist in Pearl City, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 63,832 in Clinical Psychologist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
John Donkervoet, PH.D. is a Clinical Psychologist in Pearl City, Hawaii, listed in the federal CMS National Provider Identifier registry.
- #17
- Clinical Psychologist rank among Hawaii specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about John Donkervoet, PH.D.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1134152580), first enumerated 07/09/2006.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1134152580 · Clinical Psychologist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-NONE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1134152580
- ENUM-LEGACY 2006
- TAX-MEGA 64K Clinical Psychologist
- RX-NONE No Part D
- BOOK-LIGHT 579 in Hawaii
- PHOTO-ENUM Leslie Weiss, PH.D. · 2006
What does the federal data show about John Donkervoet, PH.D.?
Quality data not reportedPrimary specialty
Clinical Psychologist
Specialty distribution in Hawaii
How Clinical Psychologist compares to other specialties among Hawaii providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Clinical Psychologist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1134152580 |
|---|---|
| Specialty | Clinical Psychologist |
| Credentials | PH.D. |
| Gender | Male |
| NPI Issued | 07/09/2006 |
Hospital and facility affiliations
Facilities where John Donkervoet, PH.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
The Pisgah Institute For Psychotherapy And Education PA
Asheville, NC
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Clinical Psychologist Overview
How John Donkervoet, PH.D. fits within the Clinical Psychologist landscape nationally.
63,832
Clinical Psychologist Providers in US
56
States with Clinical Psychologist
704
Avg Claims per Provider
Nationwide Clinical Psychologist peers with similar MIPS or enrollment year
Two federal-record peer sets for Donkervoet, both outside Hawaii so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Clinical Psychologist Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Donkervoet.
One of 579 Clinical Psychologist providers enrolled in Hawaii, 5 are shown here.
Dr. Tomas Abel
PH.D.
Honolulu, HI
Dr. Maria Achaval
PSY.D.
Honolulu, HI
Dr. Marvin Acklin
PH.D.
Honolulu, HI
Dr. Franco Acquaro
PHD
Kamuela, HI
Dr. Caroline Francoise Acra
PH.D.
Honolulu, HI
Compare Clinical Psychologist nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Donkervoet, PH.D.'s specialty? ▼
John Donkervoet, PH.D. specializes in Clinical Psychologist and practices in Pearl City, Hawaii. Credentials: PH.D..
Where is John Donkervoet, PH.D. located? ▼
John Donkervoet, PH.D. is located at 919 LEHUA AVE, Pearl City, HI, 96782. Phone: (808) 236-2260.
What is John Donkervoet, PH.D.'s NPI number? ▼
John Donkervoet, PH.D.'s National Provider Identifier (NPI) is 1134152580, issued on 07/09/2006.
How many Clinical Psychologist providers are there in the US? ▼
There are 63,832 Clinical Psychologist providers across 56 states in the US. The average Clinical Psychologist provider writes 704 Medicare Part D claims per year.
Does John Donkervoet, PH.D. accept Medicare? ▼
John Donkervoet, PH.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Donkervoet, PH.D.'s credentials? ▼
John Donkervoet, PH.D.'s NPI is 1134152580 with credentials PH.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.