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Harrison Stewart, CATC

Addiction (Substance Use Disorder) Counselor in Martinez, CA · enumerated 2016 · practices at Contra Costa County.

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

National Provider Identifier

1215488234

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Registry record

Entity type Individual (Type 1)
Name Harrison Stewart
Credential CATC
Sex Male
Practice address Martinez, CA, 94553
Phone (925) 646-9270
Fax (925) 646-9276
Enumeration date Oct 14, 2016
Last updated in NPPES Oct 14, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License CATC 168783 (CA) 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 Harrison Stewart?
The National Provider Identifier (NPI) for Harrison Stewart is 1215488234, a Type 1 (individual) record in the CMS NPPES registry.
Where does Harrison Stewart practice?
The practice location on file with NPPES is in Martinez, CA. 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 2016-10-14.