From SAMHSA
National Substance Use and Mental Health Services Survey (N-SUMHSS), 2021: Data on Substance Use and Mental Health Treatment Facilities
The N‑SUMHSS is a voluntary annual survey of all active substance use and mental health facilities in the United States, its territories, and D.C. The annual report presents findings on the general profile of substance use and mental health facilities, use of pharmacotherapies/medications, language assistance provided, and suicide prevention services.