As consulting physician at Montreal Public Health, he is responsible for housing and works on a variety of other environmental health issues including environmental noise and extreme heat. He has a particular interest in public health surveillance, especially with regards to using surveillance data to influence public policy. He is program director of the Public Health & Preventive Medicine residency at McGill University and clinical assistant professor in the Department of Epidemiology, Biostatistics and Occupational Health at McGill University and in the Département de médecine sociale et préventive de l'École de santé publique de l'Université de Montréal.