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Mike has been an addiction clinician, research/evaluation collaborator, educator, and policy analyst with CAMH. Mike is also a faculty associate with The Peter Boris Centre for Addictions Research and The Centre for Medicinal Cannabis Research. He has been a recipient of the John C. Sibley Award for Excellence in Health Sciences Research and Education at McMaster. He has provided consultation on cannabis legalization to Committees of the Canadian Senate, House of Commons and provincial governments of Ontario and Quebec.

Current interests include epidemiology of drug problems and drug policy.

Drug Promotion, Problems, Policy: 

Peter Boris Centre for Addiction Research

Centre for Medicinal Cannabis Research

Featured Publications

  • DeVillaer, Michael. (in press). "Cannabis Legalization:  Déjà Vu All Over Again?" Chapter 5 in Clayton McCann and Andrew D. Hathaway (eds.) Cannabis in Canada: A Multidisciplinary Reader. Vancouver: UBC Press.

  • Punia, K., DeVillaer, M., MacKillop, J., Balodis, Iris M. 2020. Understanding the Overlap Between Cannabis Use and Gambling Behaviour: A Systematic Review of Empirical Findings and Consideration of Policy Implications. Curr Addict Rep (July 21, 2020).

  • DeVillaer, Michael. 2019. Cannabis Legalization in Canada: The Public Health Approach We Did Not Get. Canadian Journal of Addictions, 2019:10(3);51-59.

  • DeVillaer, Michael. 2019. "Cannabis Legalization: Lessons from Alcohol, Tobacco, and Pharmaceutical Industries". In High Time: The Legalization and Regulation of Cannabis in Canada. Eds. Andrew Potter and Daniel Weinstock. Montreal: McGill-Queens University Press. 

  •  DeVillaer, Michael. 2017. Cannabis Law Reform in Canada: Pretense & Perils, Peter Boris Centre for Addictions Research, McMaster University. February 2017. [As of February 18, 2021, the report has recorded 43,060 impressions on Twitter, up from 33,512 on December 31, 2019.]

  • DeVillaer, Michael, Goodstadt, Michael, Kahan, Meldon, Scott, Fran. (2001). Substance Use Disorders: Community Medicine (Vo.10). Toronto: Project CREATE.

  • Maudsley, Robert F., Wilson, Donald R., Neufeld, Victor R., Hennen, Brian K., DeVillaer, Michael R., Wakefield, Jacqueline, Macfadyen, John, Turnbull, Jeffrey M., Weston, W. Wayne, Brown, Merrilee G., Frank, Jason R., & Richardson, Denise.  (2000). "Educating future physicians for Ontario: Phase II". Academic Medicine, 75(2), p.113-126.

  • DeVillaer, Michael. (1996). “Establishing and using a community inter-agency client monitoring system to develop addictions treatment programs”.  Addiction, 91(5), p.701-709.

  • Carver, V., Bernardi, D., Gavin, M., DeVillaer, M., & Sobol, L. (1995).   “The development of assessment and referral services in Ontario: The role of ARF Community Programs staff”. Contemporary Drug Problems, (Spring), p.43-59.

  • Reynolds, D.L., Chambers, L.W., & DeVillaer, M. (1992). "Measuring alcohol abuse in the community: Consumption, binge drinking, and alcohol-related consequences (alcoholism)". Canadian Journal of Public Health, 83(6), p.441-447.


  • MASc, Psychology, University of Waterloo, 1978
  • BA (Hons.) in Psychology, University of Waterloo, 1976


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