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Mr. Harry Walter Nadeau, CASAC

Addiction (Substance Use Disorder) Counselor in Bronx, NY · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1871269498

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Registry record

Entity type Individual (Type 1)
Name Mr. Harry Walter Nadeau
Credential CASAC
Sex Male
Practice address 1775 Grand Concourse Ste 801, Bronx, NY, 10453
Phone (212) 665-1860
Enumeration date Aug 23, 2021
Last updated in NPPES Aug 23, 2021

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 36848 (NY) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Harry Nadeau?
The National Provider Identifier (NPI) for Harry Nadeau is 1871269498, a Type 1 (individual) record in the CMS NPPES registry.
Where does Harry Nadeau practice?
The practice location on file with NPPES is in Bronx, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-23.