Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dean Stuart Mortenson, MA,ADCT

Addiction (Substance Use Disorder) Counselor in Crookston, MN · enumerated 2007.

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

National Provider Identifier

1194847863

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Registry record

Entity type Individual (Type 1)

Name Dean Stuart Mortenson

Credential MA,ADCT

Sex Male

Practice address 323 S Minnesota St, Crookston, MN, 56716

Phone (218) 281-9436

Enumeration date Apr 4, 2007

Last updated in NPPES Dec 2, 2009

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 302476 (MN) 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Dean Mortenson?

Dean Mortenson is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-02.