The Root Center for Advanced Recovery is a non-profit organization dedicated to helping people recover from Willimantic Clinic is a methadone clinic in Willimantic, Connecticut that offers mental health and substance abuse treatment to persons suffering from substance misuse disorders and psychological problems. The methadone clinic in Willimantic, Connecticut works closely with each patient to create a personalized rehabilitation plan that is tailored to their specific needs and preferences, assisting them in overcoming their addiction.