Canadian Centre on Substance Use and Addiction

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Alexander Caudarella, MDCM CCFP AM ABAM(d)


Alexander’s areas of expertise include the Canadian healthcare systems, harm reduction, opioids, treatment and decriminalization.


Dr. Alexander Caudarella is a bilingual family physician with specialty training in substance use health issues.

As a leader and clinician, he brings years of collaborative substance use healthcare experience to CCSA from his work across the country. Previously, Alexander served as the medical director of substance use services (SUS) at St. Michael’s Hospital in Toronto, and lead SUS physician with Inner City Health Associates. He has developed innovative clinical programs to decrease barriers to care and improve access to a better standard of care in hospitals, clinics and the community. In his work as a researcher and clinician, he frequently advised public health officials on issues related to substance use health.

As one of the key leaders of the Toronto Opioid Overdose Action Network, Alexander co-ordinated the implementation of in-hospital substance use services and supports and developed a regional system to access rapid expert support. He has served as a substance use consultant and clinician for the Government of Nunavut. 

He joined CCSA as Chief Executive Officer in August 2022. Alexander believes his experiences help him understand and appreciate the diversity of substance use health services, challenges and opportunities that exist in our country. 

Through CCSA’s work with national and international partners, Alexander wants people in Canada to understand the scope of substance use health and the solutions they can put in place in their communities. He passionately believes that collaboration across sectors is essential in improving the health and well-being of people who use drugs and alcohol.

Read Alex’s full biography.


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