About ️GateHouse Treatment
GateHouse Treatment is an accredited addiction treatment provider in Nashua, New Hampshire serving adults living with substance use disorders.
The program offers outpatient focused care including PHP and IOP as well as evening IOP and standard outpatient services along with medication assisted treatment and dual diagnosis support for co-occurring conditions like depression.
GateHouse is built around a long term recovery philosophy that prioritizes customized treatment plans, family involvement, and lasting community connection.
Experiential Psychodrama and MAT
GateHouse specializes in flexible outpatient addiction care designed to fit real life schedules while delivering structured clinical support.
IOP includes counseling, family sessions, and case management while standard outpatient pairs weekly counseling with two group sessions and ongoing case management.
Treatment integrates evidence based modalities such as CBT and DBT, EMDR for trauma, biofeedback, and experiential psychodrama alongside MAT options like Vivitrol and Suboxone when clinically appropriate.
Family Programming and Recovery Support
Beyond clinical care GateHouse weaves in family programming, gender specific tracks, 12 step integration, and access to sober living to support whole person recovery.
Telehealth options for counseling and case management make it easier to stay engaged and alumni programming helps clients maintain momentum well after discharge.





