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  • Ontario Addiction Treatment Centres Open until 1:00 PM Website Contacts
    905-773-3884
    175 Commerce Valley Drive West, Markham, ON L3T 7P6

    Ontario Addiction Treatment Centres (CATC) is Canada’s largest provider of addiction care, offering evidence-based programs for substance use disorder across Ontario, New Brunswick, and British Columbia. With over 75 treatment centres, CATC provides rapid access outpatient treatment, intensive inpa…