Substance use treatment; Outpatient; Intensive outpatient treatment; Outpatient methadone/buprenorphine or naltrexone treatment; Regular outpatient treatment; General Hospital (including VA hospital); Naltrexone used in Treatment; In-network prescribing entity; No formal relationship with prescribing entity; This facility administers/prescribes medication for alcohol use disorder; No formal relationship with prescribing entity; Prescribes naltrexone; Relapse prevention with naltrexone; Accepts clients using MAT but prescribed elsewhere; Acamprosate (Campral®); Disulfiram; Naltrexone (oral); Naltrexone (extended-release, injectable); Medication for mental disorders; Cognitive behavioral therapy; Motivational interviewing; Matrix Model; Relapse prevention; Substance use disorder counseling; Telemedicine/telehealth therapy; 12-step facilitation; Private non-profit organization; State Substance use treatment agency; The Joint Commission; Medicare; Medicaid; Private health insurance; Cash or self-payment; Comprehensive substance use assessment; Interim services for clients; Screening for tobacco use; Screening for substance use; Breathalyzer or blood alcohol testing; Drug or alcohol urine screening; Aftercare/continuing care; Naloxone and overdose education; Self-help groups; Mentoring/peer support; HIV or AIDS education, counseling, or support; Hepatitis education, counseling, or support; Individual counseling; Group counseling; Family counseling; Smoking not permitted; Adults; Young adults; Female; Male; Vaping not permitted; Mental health services