Wellformed AI

Live from the CMS NPI Registry

Montana NPI lookup by specialty

Choose a specialty to see providers with a practice address in Montana, with their NPI numbers. Each provider has a full NPI record and an exclusion check.

Checking a Montana provider before you hire or bill

OIG exclusion list, Montana259

people and businesses with a Montana address are on OIG’s list of excluded individuals and entities (October 2026 file): 250 individuals and 9 businesses, 6 added in the last 12 months. That ranks Montana 45 of 56 states and territories.

Most often listed as: Nurse/Nurses Aide (95), Personal Care Provid (24), Counselor (13), Home Health Agency (6), Social Worker (6).

Most common reason: license revocation, suspension or surrender (90).

Montana Medicaid exclusion list

Department of Public Health and Human Services publishes the Excluded or Terminated Montana Medicaid Providers (excel, dated file). Our free exclusion check searches it automatically, together with OIG and SAM.gov.

All 50 state lists
  1. Confirm the NPI in the CMS registry: NPI lookup (the provider pages below link here too).
  2. Screen the name against OIG, SAM.gov and the Montana Medicaid list: exclusion check, or your whole staff list at once.
  3. Check Montana’s own Medicaid list: Excluded or Terminated Montana Medicaid Providers.
  4. Verify the license with the Montana board for that profession. NPI records don’t prove a license.