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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Joseph M Viana, CRC, LCPC, LCMHC

Mental Health Counselor in Tamworth, NH · enumerated 2007.

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

National Provider Identifier

1831373174

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Registry record

Entity type Individual (Type 1)
Name Mr. Joseph M Viana
Credential CRC, LCPC, LCMHC
Sex Male
Practice address Tamworth, NH, 03886
Phone (603) 539-7451
Enumeration date Dec 21, 2007
Last updated in NPPES Dec 21, 2007

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 639 (NH) Primary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License CC2364 (ME) Secondary

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 Joseph Viana?
The National Provider Identifier (NPI) for Joseph Viana is 1831373174, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joseph Viana practice?
The practice location on file with NPPES is in Tamworth, NH. 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 2007-12-21.