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Clinical assistant professor, Université de Montréal

Nicholas Chadi (he/him), MD, MPH, is currently a Clinical Assistant Professor at the University of Montreal. He is a clinician-scientist at Sainte-Justine University Hospital Centre where he is also the director of the substance use and addiction program as well as a co-director of the gender diversity clinic. Dr. Chadi completed medical school at McGill University and residency training in general pediatrics at the University of Montreal. He then completed subspecialty training in Adolescent Medicine as well as a fellowship in global journalism at the University of Toronto. He later obtained a Master of Public Health at Harvard University and was the first pediatrician in North America to complete a pediatric addiction medicine fellowship at Boston Children’s Hospital. His research focuses primarily on gender identity and the prevention and treatment of mental health and substance use disorders among adolescents and young adults.


  • 2019–present
    Clinician-scientist, Sainte-Justine University Hospital Centre
  • 2019–present
    Clinical Assistant Professor, University of Montreal