2026 NPPES data Clinical Psychologist NPI 1104592989 PSY.D.
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William Hurley-Welljams-Dorof, PSY.D.

Clinical Psychologist in Washington, District of Columbia.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 63,000 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

William Hurley-Welljams-Dorof, PSY.D. is a Clinical Psychologist in Washington, District of Columbia, listed in the federal CMS National Provider Identifier registry.

#19
Clinical Psychologist rank among District of Columbia 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 William Hurley-Welljams-Dorof, PSY.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 1104592989), first enumerated 08/20/2021.

    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 1104592989 · Clinical Psychologist

NPI-10 · ENUM-RECENT · TAX-MEGA · RX-NONE · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1104592989
  • ENUM-RECENT 2021
  • TAX-MEGA 63K Clinical Psychologist
  • RX-NONE No Part D
  • BOOK-LIGHT 532 in District of Columbia
  • PHOTO-ENUM Melissa Ewing · 2021

What does the federal data show about William Hurley-Welljams-Dorof, PSY.D.?

Quality data not reported

NPI registry status

Active

Issued 08/20/2021

NPI 1104592989

Primary specialty

Clinical Psychologist

High-volume

63,000 US NPIs in this specialty

Specialty distribution in District of Columbia

How Clinical Psychologist compares to other specialties among District of Columbia providers

District of Columbia providers
Home Health Aide20.8%Personal Care Attendant11.5%Case Manager/Care Coordinator7%Student in an Organized Heal…6.4%Clinical Social Worker4%Internal Medicine Physician2.1%Clinical Psychologist1.2%
Largest specialties in District of Columbia (% of in-state 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

1330 U ST NW
Washington, DC 20009

Provider Details

NPI 1104592989
Specialty Clinical Psychologist
Credentials PSY.D.
Gender Male
NPI Issued 08/20/2021

Clinical Psychologist Overview

How William Hurley-Welljams-Dorof, PSY.D. fits within the Clinical Psychologist landscape nationally.

63,000
Clinical Psychologist Providers in US
56
States with Clinical Psychologist
615
Avg Claims per Provider

Nationwide Clinical Psychologist peers with similar MIPS or enrollment year

Two federal-record peer sets for Hurley-Welljams-Dorof, both outside District of Columbia so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2021)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Clinical Psychologist Providers in District of Columbia

Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Hurley-Welljams-Dorof.

One of 532 Clinical Psychologist providers enrolled in District of Columbia, 5 are shown here.

Compare Clinical Psychologist nationally: see state-by-state distribution →

Frequently Asked Questions

What is William Hurley-Welljams-Dorof, PSY.D.'s specialty?
William Hurley-Welljams-Dorof, PSY.D. specializes in Clinical Psychologist and practices in Washington, District of Columbia. Credentials: PSY.D..
Where is William Hurley-Welljams-Dorof, PSY.D. located?
William Hurley-Welljams-Dorof, PSY.D. is located at 1330 U ST NW, Washington, DC, 20009. Phone: (202) 888-5595.
What is William Hurley-Welljams-Dorof, PSY.D.'s NPI number?
William Hurley-Welljams-Dorof, PSY.D.'s National Provider Identifier (NPI) is 1104592989, issued on 08/20/2021.
How many Clinical Psychologist providers are there in the US?
There are 63,000 Clinical Psychologist providers across 56 states in the US. The average Clinical Psychologist provider writes 615 Medicare Part D claims per year.
Does William Hurley-Welljams-Dorof, PSY.D. accept Medicare?
William Hurley-Welljams-Dorof, PSY.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Hurley-Welljams-Dorof, PSY.D.'s credentials?
William Hurley-Welljams-Dorof, PSY.D.'s NPI is 1104592989 with credentials PSY.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 April 2026 (NPPES) / 2023 (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 May 2026.