Substance use treatment; Outpatient; Outpatient methadone/buprenorphine or naltrexone treatment; General Hospital (including VA hospital); Methadone used in Treatment; Does not treat alcohol use disorder; Federally-certified Opioid Treatment Program; Methadone maintenance; Methadone; Brief intervention; Motivational interviewing; Relapse prevention; Substance use disorder counseling; 12-step facilitation; Local, county, or community government; State Substance use treatment agency; The Joint Commission; Medicare; Medicaid; Private health insurance; Cash or self-payment; Sliding fee scale (fee is based on income and other factors); Adult women; Adult men; Comprehensive mental health assessment; Comprehensive substance use assessment; Screening for tobacco use; Screening for substance use; Screening for mental disorders; Drug or alcohol urine screening; HIV testing; STD testing; TB screening; Aftercare/continuing care; Discharge Planning; Naloxone and overdose education; Outcome follow-up after discharge; Self-help groups; Assistance with obtaining social services; Mentoring/peer support; Employment counseling or training; HIV or AIDS education, counseling, or support; Hepatitis education, counseling, or support; Health education services other than HIV/AIDS or hepatitis; Substance use disorder education; Smoking/vaping/tobacco cessation counseling; Individual counseling; Group counseling; Vocational training or educational support (for example, high school coursework, GED preparation, etc.) ; Hepatitis A (HAV) vaccination; Hepatitis B (HBV) vaccination; Smoking not permitted; Adults; Young adults; Female; Male; Spanish