2 NPI-registered Addiction (Substance Use Disorder) Psychologist providers practice in Montana. Switch states in the rail, or open the full search to filter by city and credential.
| Provider | Specialty | Location | NPI |
|---|---|---|---|
| Chase Gannon | Addiction (Substance Use Disorder) Psychologist | Missoula, MT | 1265223382 |
| Lori AshtonLAC | Addiction (Substance Use Disorder) Psychologist | Great Falls, MT | 1477826931 |
Source: CMS NPPES Data Dissemination (June 2026). Specialty taxonomy: NUCC.
