As a leading expert in chronic pain management and addictions medicine, Dr. Marks de Chabris brings 30 years of medical expertise to ZYUS where he is Chief Medical Officer, chairman of ZYUS’ Clinical Advisory Committee and spearheads the company’s Healthcare Practitioner Education Program. Prior to joining ZYUS, Dr. Marks de Chabris established one of only three Chronic Pain Management centers in northern Ontario. He continues to serve as an assistant professor at the Northern Ontario School of Medicine. Dr. Marks de Chabris’ pain management practice is recognized by the Ontario Medical Association and he has been accepted by the Ontario Superior Court as an expert in pain medicine and addiction medicine. In addition, he is a diplomate of the Canadian Academy of Pain Management and the American Board of Addiction Medicine, and he is acknowledged as a Fellow of the College of Family Physicians of Canada with expertise in addiction medicine.