2026 NPPES data Clinical Neuropsychologist NPI 1508357906 PHD
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Julie Smallman, PHD

Clinical Neuropsychologist 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 5,808 in Clinical Neuropsychologist, 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

Julie Smallman, PHD is a Clinical Neuropsychologist in Washington, District of Columbia, listed in the federal CMS National Provider Identifier registry.

#96
Clinical Neuropsychologist 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 Julie Smallman, PHD

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 1508357906), first enumerated 05/22/2018.

    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 1508357906 · Clinical Neuropsychologist

NPI-10 · ENUM-RECENT · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1508357906
  • ENUM-RECENT 2018
  • TAX-MID 6K Clinical Neuropsychologist
  • RX-NONE No Part D
  • BOOK-THIN 43 in District of Columbia
  • PHOTO-ENUM Ashley Roy · 2018

What does the federal data show about Julie Smallman, PHD?

Quality data not reported

NPI registry status

Active

Issued 05/22/2018

NPI 1508357906

Primary specialty

Clinical Neuropsychologist

Mid-sized

5,808 US NPIs in this specialty

Specialty distribution in District of Columbia

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

District of Columbia providers
Home Health Aide20.3%Personal Care Attendant12%Case Manager/Care Coordinator7.1%Student in an Organized Heal…6.4%Clinical Social Worker4%Internal Medicine Physician2%Clinical Neuropsychologist0.1%
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 Neuropsychologist. 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

3301 NEW MEXICO AVE NW
Washington, DC 20016

Provider Details

NPI 1508357906
Specialty Clinical Neuropsychologist
Credentials PHD
Gender Female
NPI Issued 05/22/2018

Clinical Neuropsychologist Overview

How Julie Smallman, PHD fits within the Clinical Neuropsychologist landscape nationally.

5,808
Clinical Neuropsychologist Providers in US
53
States with Clinical Neuropsychologist
926
Avg Claims per Provider

Nationwide Clinical Neuropsychologist peers with similar MIPS or enrollment year

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

Same NPPES enumeration year (2018)

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

Nearby Clinical Neuropsychologist 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 Smallman.

One of 43 Clinical Neuropsychologist providers enrolled in District of Columbia, 5 are shown here.

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

Frequently Asked Questions

What is Julie Smallman, PHD's specialty?
Julie Smallman, PHD specializes in Clinical Neuropsychologist and practices in Washington, District of Columbia. Credentials: PHD.
Where is Julie Smallman, PHD located?
Julie Smallman, PHD is located at 3301 NEW MEXICO AVE NW, Washington, DC, 20016. Phone: (202) 537-6155.
What is Julie Smallman, PHD's NPI number?
Julie Smallman, PHD's National Provider Identifier (NPI) is 1508357906, issued on 05/22/2018.
How many Clinical Neuropsychologist providers are there in the US?
There are 5,808 Clinical Neuropsychologist providers across 53 states in the US. The average Clinical Neuropsychologist provider writes 926 Medicare Part D claims per year.
Does Julie Smallman, PHD accept Medicare?
Julie Smallman, PHD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Julie Smallman, PHD's credentials?
Julie Smallman, PHD's NPI is 1508357906 with credentials PHD. 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.