Dr. Houston graduated MD from the University of Saskatchewan and obtained qualifications in Family Medicine, Tropical Medicine, Internal Medicine and Infectious Diseases. He worked in primary care in a northern Saskatchewan indigenous community and in rural Lesotho and taught for four years at the University of Zimbabwe. He participated in TB control projects in Ecuador and South Sudan for over 10 years. He was director of the Northern Alberta HIV Program and active for many years in the development of Harm Reduction services and refugee health in Edmonton. He is a former Parkland board member.