Brook Addiction Treatment Center is a trusted addiction treatment center in Hanover, Massachusetts, offering nationally accredited care for substance use and co-occurring mental health disorders. Our compassionate team provides individualized treatment plans using evidence-based therapies like CBT, DBT, trauma therapy, and holistic modalities. With flexible outpatient programs, strong relapse-prevention support, and in-network insurance options, we help you heal the root causes of addiction and build lasting recovery in a safe, supportive environment.