MedMark Treatment Centers Lemont Furnace is an addiction treatment center located at 2262 University Dr, Lemont Furnace, PA 15456. We provide comprehensive support and services aimed at helping individuals overcome addiction. Our operating hours are Monday through Friday from 5:30 AM to 11:30 AM, and we are closed on Saturday and Sunday. For more information, please call us at +17243239413 or visit our website at medmark.com.