Katherine Tillson, LAC, LCSW
NPI 1659944403 · Clinical Social Worker · Belgrade, MT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Tillson, LAC, LCSW is a Clinical Social Worker provider in Belgrade, MT (NPI 1659944403).
Provider details
- NPI number
- 1659944403
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LAC, LCSW
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 208 S Broadway StManhattan, MT 59741-2241Phone: (415) 577-1740
Registry dates
- Enumerated
- 2021-07-20
- Last updated
- 2025-12-08
- Certified
- 2025-12-08
Frequently asked questions
- What is Katherine Tillson's NPI number?
- Katherine Tillson's National Provider Identifier (NPI) is 1659944403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Tillson's specialty?
- Katherine Tillson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Katherine Tillson located?
- Katherine Tillson's practice location on file with NPPES is 19 E Main St, Belgrade, MT 59714-3715.
- What is Katherine Tillson's phone number?
- The practice phone number listed in the NPPES registry for Katherine Tillson is (406) 924-5754.
- Does Katherine Tillson accept Medicare?
- Katherine Tillson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Tillson's NPI active?
- Yes — Katherine Tillson's NPI (1659944403) is active in the NPPES registry as of the last update on 2025-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.