Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Larissa Olson, LCSW PLLC

Organization Clinical Social Worker · NPI 1205390861

Larissa Olson, LCSW PLLC is a Clinical Social Worker in Missoula, Montana. Registered with an NPI since 2019.

In the registry since
2019
Specialties on file
2
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2423 Mullan Rd
Missoula, MT 59808-1827
Phone: (406) 499-2472
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X
Community/Behavioral Health Agency Taxonomy 251S00000X

Record details

NPI number1205390861
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Larissa Olson — Owner · (406) 274-4652
NPI enumeratedJanuary 29, 2019
Last updated in NPPESMarch 5, 2023
Certification dateMarch 5, 2023
Mailing address2423 Mullan Rd, Missoula, MT 59808-1827

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