
John ColbyClinical Social Work/Therapist
155 Main Dunstable Road, Suite 130
Nashua, NH 03060
In-Person & Online
11 years experience
About
GateHouse Treatment in Nashua, NH specializes in adults battling addiction to opioids (Fentanyl, Heroin, Oxycodone), stimulants (Cocaine, Methamphetamine), alcohol, and polysubstance use. Our clients seek structured, compassionate care to rebuild their lives. We offer Detox, PHP, IOP, and OP programs paired with sober living to address both recovery and community reintegration. Combining evidence-based therapies—medical care, trauma counseling, relapse prevention, and family programs—we tailor plans to your unique needs. Your Journey to Lasting Sobriety Begins Here. Contact us Today!