MedMark Treatment Centers Normal is an addiction treatment center located at 303 Landmark Dr #2-B, Normal, IL 61761. We offer comprehensive services to assist individuals on their recovery journey. Our hours of operation are from 7:00 AM to 10:30 AM, Monday through Friday, and 7:00 AM to 9:45 AM on Saturdays, with Sundays closed. For more information, visit our website at medmark.com or call us at +1 309-808-6802.