Larissa Olson, Lcsw PLLC
NPI 1205390861 · Clinical Social Worker · Missoula, MT
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Larissa Olson, Lcsw PLLC is a Clinical Social Worker organization in Missoula, MT (NPI 1205390861).
Provider details
- NPI number
- 1205390861
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Larissa Olson, Owner(406) 274-4652
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Community/Behavioral Health Agency251S00000X
Agencies
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-01-29
- Last updated
- 2023-03-05
- Certified
- 2023-03-05
Frequently asked questions
- What is Larissa Olson, Lcsw PLLC's NPI number?
- Larissa Olson, Lcsw PLLC's National Provider Identifier (NPI) is 1205390861, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Larissa Olson, Lcsw PLLC?
- Larissa Olson, Lcsw PLLC is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Larissa Olson, Lcsw PLLC located?
- Larissa Olson, Lcsw PLLC's practice location on file with NPPES is 2423 Mullan Rd, Missoula, MT 59808-1827.
- What is Larissa Olson, Lcsw PLLC's phone number?
- The practice phone number listed in the NPPES registry for Larissa Olson, Lcsw PLLC is (406) 499-2472.
- Does Larissa Olson, Lcsw PLLC accept Medicare?
- Larissa Olson, Lcsw PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Larissa Olson, Lcsw PLLC?
- The authorized official listed on Larissa Olson, Lcsw PLLC's NPPES record is Larissa Olson, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Larissa Olson, Lcsw PLLC's NPI active?
- Yes — Larissa Olson, Lcsw PLLC's NPI (1205390861) is active in the NPPES registry as of the last update on 2023-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.