NPI registry status
Active
2026 NPPES data School Psychologist NPI 1861622870 PH.D.
Verify on CMS → Thomas Callahan, PH.D.
School Psychologist in Newport, Rhode Island.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 14,939 in School 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
Thomas Callahan, PH.D. is a School Psychologist in Newport, Rhode Island, listed in the federal CMS National Provider Identifier registry.
- #112
- School Psychologist rank among Rhode Island 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 Thomas Callahan, 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 1861622870), first enumerated 07/24/2009.
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
- 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 1861622870 · School Psychologist
NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1861622870
- ENUM-MID 2009
- TAX-MID 15K School Psychologist
- RX-NONE No Part D
- BOOK-THIN 21 in Rhode Island
- PHOTO-ENUM Laura Pasieka · 2009
What does the federal data show about Thomas Callahan, PH.D.?
Quality data not reportedPrimary specialty
School Psychologist
Specialty distribution in Rhode Island
How School Psychologist compares to other specialties among Rhode Island 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 School 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 | 1861622870 |
|---|---|
| Specialty | School Psychologist |
| Credentials | PH.D. |
| Gender | Male |
| NPI Issued | 07/24/2009 |
School Psychologist Overview
How Thomas Callahan, PH.D. fits within the School Psychologist landscape nationally.
14,939
School Psychologist Providers in US
52
States with School Psychologist
1,168
Avg Claims per Provider
Nationwide School Psychologist peers with similar MIPS or enrollment year
Two federal-record peer sets for Callahan, both outside Rhode Island so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby School Psychologist Providers in Rhode Island
Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as Callahan.
One of 21 School Psychologist providers enrolled in Rhode Island, 5 are shown here.
Kyle Black
Cumberland, RI
John Calzada
Pawtucket, RI
Dr. Brooke Dewitt
PH.D.
Riverside, RI
Laura Dittrich
Pascoag, RI
Jebadiah Fontaine
Warren, RI
Compare School Psychologist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Thomas Callahan, PH.D.'s specialty? ▼
Thomas Callahan, PH.D. specializes in School Psychologist and practices in Newport, Rhode Island. Credentials: PH.D..
Where is Thomas Callahan, PH.D. located? ▼
Thomas Callahan, PH.D. is located at 8 FREEBODY ST, Newport, RI, 02840. Phone: (401) 845-6682.
What is Thomas Callahan, PH.D.'s NPI number? ▼
Thomas Callahan, PH.D.'s National Provider Identifier (NPI) is 1861622870, issued on 07/24/2009.
How many School Psychologist providers are there in the US? ▼
There are 14,939 School Psychologist providers across 52 states in the US. The average School Psychologist provider writes 1,168 Medicare Part D claims per year.
Does Thomas Callahan, PH.D. accept Medicare? ▼
Thomas Callahan, 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 Thomas Callahan, PH.D.'s credentials? ▼
Thomas Callahan, PH.D.'s NPI is 1861622870 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.