2026 NPPES data Addiction (Substance Use Disorder) Psychologist NPI 1386620466 PSYD, PHD
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HENRY LESIEUR, PSYD, PHD

Addiction (Substance Use Disorder) Psychologist in PROVIDENCE, Rhode Island. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
What the federal data reveals: HENRY LESIEUR, PSYD, PHD is a Addiction (Substance Use Disorder) Psychologist ([object Object]) practicing in PROVIDENCE, Rhode Island .

What stands out: HENRY LESIEUR, PSYD, PHD specializes in Addiction (Substance Use Disorder) Psychologist and practices in PROVIDENCE, Rhode Island, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

HENRY LESIEUR, PSYD, PHD at a glance

Quality data not reported

NPI registry status

Active

Issued 12/20/2005

NPI 1386620466

Primary specialty

Addiction (Substance Use Disorder) Psychologist

Niche

975 US NPIs in this specialty

Specialty distribution in Rhode Island

How Addiction (Substance Use Disorder) Psychologist compares to other specialties among Rhode Island providers

Rhode Island providers

Addiction (Substance Use Disorder) Psychologist share within Rhode Island

1. Addiction (Substance Use Disorder) Psychologist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction (Substance Use Disorder) Psychologist share within Rhode Island

Specialty board-certification context

Estimated specialty board-certified rate — Addiction (Substance Use Disorder) Psychologist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction (Substance Use Disorder) Psychologist ABMS/AOA estimate

Est. board-certified rate (Addiction (Substance Use Disorder) Psychologist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction (Substance Use Disorder) Psychologist) — ABMS / AOA estimate

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).

HENRY LESIEUR, PSYD, PHD is a Addiction (Substance Use Disorder) Psychologist provider practicing in PROVIDENCE, Rhode Island, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PSYD, PHD. NPI: 1386620466. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

HENRY LESIEUR, PSYD, PHD appears in the CMS NPPES registry as a Addiction (Substance Use Disorder) Psychologist provider holding PSYD, PHD credentials at 593 EDDY ST, PROVIDENCE, RI, 02903, with a listed phone of (401) 277-0700. NPI 1386620466 was issued on 12/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LESIEUR most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Addiction (Substance Use Disorder) Psychologist providers operate outside Part D entirely.

Addiction (Substance Use Disorder) Psychologist is a narrow specialty nationwide, with 975 enrolled providers across 50 states and an average of 1,383 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

593 EDDY ST
PROVIDENCE, RI 02903

Provider Details

NPI 1386620466
Specialty Addiction (Substance Use Disorder) Psychologist
Credentials PSYD, PHD
Gender Male
NPI Issued 12/20/2005

Addiction (Substance Use Disorder) Psychologist Overview

How HENRY LESIEUR, PSYD, PHD fits within the Addiction (Substance Use Disorder) Psychologist landscape nationally.

975
Addiction (Substance Use Disorder) Psychologist Providers in US
50
States with Addiction (Substance Use Disorder) Psychologist
1,383
Avg Claims per Provider

Nearby Addiction (Substance Use Disorder) Psychologist Providers in Rhode Island

Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as LESIEUR.

Compare Addiction (Substance Use Disorder) Psychologist nationally: see state-by-state distribution →

Frequently Asked Questions

What is HENRY LESIEUR, PSYD, PHD's specialty?
HENRY LESIEUR, PSYD, PHD specializes in Addiction (Substance Use Disorder) Psychologist and practices in PROVIDENCE, Rhode Island. Credentials: PSYD, PHD.
Where is HENRY LESIEUR, PSYD, PHD located?
HENRY LESIEUR, PSYD, PHD is located at 593 EDDY ST, PROVIDENCE, RI, 02903. Phone: (401) 277-0700.
What is HENRY LESIEUR, PSYD, PHD's NPI number?
HENRY LESIEUR, PSYD, PHD's National Provider Identifier (NPI) is 1386620466, issued on 12/20/2005.
How many Addiction (Substance Use Disorder) Psychologist providers are there in the US?
There are 975 Addiction (Substance Use Disorder) Psychologist providers across 50 states in the US. The average Addiction (Substance Use Disorder) Psychologist provider writes 1,383 Medicare Part D claims per year.
Does HENRY LESIEUR, PSYD, PHD accept Medicare?
HENRY LESIEUR, PSYD, PHD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HENRY LESIEUR, PSYD, PHD's credentials?
HENRY LESIEUR, PSYD, PHD's NPI is 1386620466 with credentials PSYD, 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

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