Parkersburg Treatment Center Detoxification ; Methadone maintenance ; Methadone detoxification ; Buprenorphine used in treatment; VivitrolÆ (injectable Naltrexone); All Clients in Opioid Treatment Program; SAMHSA-certified Opioid Treatment Program;. Outpatient ; Outpatient detoxification; Outpatient methadone/buprenorphine or vivitrol; Intensive outpatient treatment; Regular outpatient treatment;. Cash or self-payment; Medicaid; Private health insurance;. Persons with co-occurring mental and substance abuse disorders; Lesbian, gay, bisexual, or transgender (LGBT) clients; Veterans; Active duty military; Military families; Clients referred from the court/judicial system (other than DUI/DWI); Pregnant/postpartum women; Adult women; Adult men; Persons with HIV or AIDS; Persons who have experienced trauma; Persons who h