Substance use treatment; Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Outpatient; Regular outpatient treatment; 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; Anger management; Brief intervention; Cognitive behavioral therapy; Motivational interviewing; Relapse prevention; Substance use disorder counseling; Trauma-related counseling; Telemedicine/telehealth therapy; Private for-profit organization; Medicaid; Federal military insurance (e.g., TRICARE); Private health insurance; Cash or self-payment; Young adults; Adult women; Adult men; Clients with co-occurring mental and substance use disorders; Outreach to persons in the community; Screening for substance use; Screening for mental disorders; Aftercare/continuing care; Treatment for other addiction disorder; Substance use disorder education; Individual counseling; Family counseling; Marital/couples counseling; Smoking permitted without restriction; Children/adolescents; Female; Male; Vaping permitted without restriction; Mental health services; Social skills development; Suicide prevention services