KATHERINE EMILY TILLSON LAC, LCSW
NPI 1659944403
Social Worker - Clinical in Belgrade, MT

Q: What is Katherine Tillson's NPI number?

The NPI number for Katherine Tillson is 1659944403. It was assigned to this individual provider in the NPPES registry on July 20, 2021.

Q: What is Katherine Tillson's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Q: When was this NPI record last updated?

The NPPES record for Katherine Tillson was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 20, 2021PECOS Enrolled

19 E MAIN ST, BELGRADE, MT 59714(406) 924-5754 Get Directions Write a Review

NPPES record last updated: December 8, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 8, 2025, Sep 7, 2021, Aug 20, 2021 and 1 more (4 updates tracked since 2021).

On this page

About Katherine Emily Tillson Lac, Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE EMILY TILLSON LAC, LCSW (NPI 1659944403) is an individual clinical provider in Belgrade, Montana, licensed in Montana (BBH-LCSW-LIC-50116) and active in the NPI registry since July 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Manhattan.

NPPES Registry Identity

NPI1659944403

Entity TypeIndividualFemale

Primary Taxonomy1041C0700X

Provider Legal NameKATHERINE EMILY TILLSONCredential: LAC, LCSW

Location Address19 E MAIN STBelgrade, MT 59714-3715

Mailing Address19 E Main StBelgrade, MT 59714-3715 · (406) 924-5754

Phone(406) 924-5754

Sole ProprietorNo

Enumeration DateJuly 20, 2021

Last NPPES UpdateDecember 8, 20254 updates tracked since enumeration

NPPES CertifiedDecember 8, 2025

✔ NPI 1659944403 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code1041C0700X

License✔ Licensed in MT · BBH-LCSW-LIC-50116

Definition

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X

19 E MAIN ST, Belgrade, MT 59714

Open in Google Maps ↗

Secondary Practice Location 1

Location 1208 S Broadway StManhattan, MT 59741-2241 · Phone (415) 577-1740

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine Emily Tillson Lac, Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Katherine Tillson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bighorn Valley Health Center Incorporated

Same address

Federally Qualified Health Center (FQHC)

19 E MAIN ST
Belgrade, MT 59714

Reassigned Medicare billing, Montana enrollment
82 clinicians in this Medicare group

NPI 1447494000 (406) 222-1111

Bighorn Valley Health Center Incorporated

31 mi

Federally Qualified Health Center (FQHC)

112 W LEWIS ST
Livingston, MT 59047

Reassigned Medicare billing, Montana enrollment
Medicare enrollment name: Community Health Partners Inc
26 clinicians in this Medicare group

NPI 1487741005 (406) 222-1111

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59714 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$0.00 typical visit price

range $56.81 – $172.26

Typical copayment $0.00 (range $14.20 – $43.06)

Most-billed visit code NA

Established Patient

$70.82 typical visit price

range $18.24 – $140.32

Typical copayment $17.70 (range $4.56 – $35.08)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KIRSTI LEE HAHN

Nurse Practitioner