Located in Missoula, MT, Western Montana Addiction Services is a Substance Abuse Treatment Services providing Substance abuse treatment in an Outpatient setting. Accepted forms of payment include Medicaid, State financed health insurance plan other than Medicaid, Private health insurance, Military insurance (e.g., TRICARE), Cash or self-payment, Access to recovery (ATR) voucher, Sliding fee scale (fee is based on income and other factors) and payment assistance is Sliding fee scale (fee is based on income and other factors).