Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Other contracted prescribing entity; Accepts clients using medication assisted treatment for alcohol use disorder but prescribed elsewhere; Other contracted prescribing entity; Accepts clients using MAT but prescribed elsewhere; Medication for mental disorders; Nicotine replacement; Cognitive behavioral therapy; Motivational interviewing; Substance use disorder counseling; Local, county, or community government; Federal, or any government funding for substance use treatment programs; Medicare; Medicaid; Private health insurance; Cash or self-payment; State-financed health insurance plan other than Medicaid; Comprehensive mental health assessment; Complete medical history/physical exam; Screening for tobacco use; Screening for substance use; Screening for mental disorders; Drug or alcohol urine screening; Housing services; Assistance with obtaining social services; Treatment for other addiction disorder; Smoking/vaping/tobacco cessation counseling; Individual counseling; Group counseling; Family counseling; Marital/couples counseling; Smoking not permitted; Female; Male; Spanish; Vaping not permitted; Case management service; Domestic violence services, including family or partner; Mental health services; Social skills development; Integrated primary care services; Suicide prevention services