Home / Greater Philadelphia Resource Guide / Substance Abuse and Mental Health Service Administration (SAMHSA) / Substance Abuse and Mental Health Service Administration (SAMHSA) Services: Hotlines, Mental Health, Recovery and Substance Use Populations Served: The Public Description: National substance use and mental health treatment referrals to local treatment facilities, support groups, and community-based organizations. Address: 5600 Fishers Lane Rockville, MD 20857 Phone: 877-726-4727 Email: samhsainfo@samhsa.hhs.gov Website Directions Back to Resource Guide