Substance Use Treatment in Groton, CT

Stonington Institute

What Does Stonington Institute Offer?

Stonington Institute is a substance use treatment facility at 618 Poquonnock Road, Groton, Connecticut, offering partial hospitalization, intensive outpatient and outpatient treatment. It accepts Medicaid, private insurance, state-financed insurance and self-pay. Medication treatment: buprenorphine and naltrexone.

Reviewed by Michael Rupe ·October 2, 2026

618 Poquonnock Road
Groton, CT 06340

Listed in SAMHSA's FindTreatment.gov, checked October 2026. A listing is not an endorsement. Call to confirm services, openings and costs before you go.

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Types of Care at Stonington Institute

Outpatient
Outpatient day treatment or partial hospitalization
Intensive outpatient treatment
Outpatient methadone/buprenorphine or naltrexone treatment

Payment, Insurance and Help Paying

Medicaid
Private health insurance
Cash or self-payment
State-financed health insurance plan other than Medicaid

Medication Treatment

Prescribes buprenorphine
Prescribes naltrexone
Relapse prevention with naltrexone
Accepts clients using MAT but prescribed elsewhere
Lofexidine or Clonidine detoxification
Acamprosate (Campral®)
Disulfiram
Buprenorphine sub-dermal implant
Buprenorphine with naloxone
Buprenorphine (extended-release, injectable)
Naltrexone (oral)
Naltrexone (extended-release, injectable)
Clonidine

Who the Program Serves

Young adults
Adult women
Pregnant/postpartum women
Adult men
Seniors or older adults
Veterans
Active duty military
Members of military families
Criminal justice (other than DUI/DWI)/Forensic clients
Clients with co-occurring mental and substance use disorders
Clients with co-occurring pain and substance use disorders
Clients with HIV or AIDS
Clients who have experienced sexual abuse
Clients who have experienced intimate partner violence, domestic violence
Clients who have experienced trauma
Ages: Young Adults
Ages: Adults
Ages: Seniors
Accepts: Female
Accepts: Male

Language Services

Sign language services for the deaf and hard of hearing
Spanish

Licensing and Accreditation

State substance use treatment agency
State mental health department
State department of health
The Joint Commission

Treatment Approaches

Anger management
Brief intervention
Cognitive behavioral therapy
Contingency management/motivational incentives
Motivational interviewing
Relapse prevention
Substance use disorder counseling
Trauma-related counseling
12-step facilitation

Assessment, Recovery Support and Other Services

Comprehensive mental health assessment
Comprehensive substance use assessment
Screening for tobacco use
Screening for substance use
Screening for mental disorders
Aftercare/continuing care
Discharge Planning
Naloxone and overdose education
Self-help groups
Housing services
Assistance with obtaining social services
Recovery coach
Employment counseling or training
Case management service
Mental health services
Social skills development
Transportation assistance
Suicide prevention services
Breathalyzer or blood alcohol testing
Drug or alcohol urine screening
TB screening

Before you commit, confirm openings, costs and the program's state license. How to choose a rehab you can trust lists the questions to ask when you call, and addiction treatment in Connecticut lists the state's treatment agency.