Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tessa Marie Olsen

Q: What is the NPI number for Tessa Olsen?

The National Provider Identifier (NPI) for Tessa Olsen is 1225534522, a Type 1 (individual) record in the CMS NPPES registry.

Behavior Analyst in Missoula, MT · enumerated 2018.

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

National Provider Identifier

1225534522

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Registry record

Entity type Individual (Type 1)

Name Tessa Marie Olsen

Sex Female

Practice address 100 Consumer Direct Way, Missoula, MT, 59808

Phone (406) 218-2344

Enumeration date Apr 4, 2018

Last updated in NPPES Apr 4, 2018

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Tessa Olsen?

The National Provider Identifier (NPI) for Tessa Olsen is 1225534522, a Type 1 (individual) record in the CMS NPPES registry.

Where does Tessa Olsen practice?

The practice location on file with NPPES is in Missoula, MT. 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 2018-04-04.