Stonington Institute

Stonington Institute is an addiction treatment facility at 618 Poquonnock Road in Groton, Connecticut, offering partial hospitalization or residential treatment, outpatient treatment, and medication-assisted treatment, according to its SAMHSA FindTreatment.gov listing as of April 10, 2026. The same record also lists opioid treatment medications. Payment options listed in the record include Cash or self-payment, Medicaid, Private health insurance, and State-financed health insurance plan other than Medicaid. The directory lists 860-445-3695 as the facility's phone number. All details on this page come from that federal record and should be confirmed directly with the facility.

618 Poquonnock Road, Groton, CT, 06340