Timberline Knolls Residential Treatment Center is an accredited substance abuse treatment center that provides outpatient treatment for men and women from 18+ years of age. As part of their special programs, Timberline Knolls Residential Treatment Center To help patients achieve sobriety, Timberline Knolls Residential Treatment Center provides intake assessments. Afterward, patients receive during treatment. Timberline Knolls Residential Treatment Center is located in Orland Park, Illinois, providing treatment for people in Cook County, accepting cash or self-payment.