American Addiction Centers (AAC) AdCare Treatment Centers, located in Rhode Island, provide you or your loved one with high-quality addiction treatment and care in a supportive and secure environment. Find out here about Adcare RI rehab programs, amenities, detox and therapy types, reviews and more. Adcare’s Rhode Island locations include North Kingstown (inpatient), Warwick (outpatient), Greenville (outpatient) and South Kingstown (outpatient).