Substance Use Service

A collaboration with Addictions Medicine and Addictions Psychiatry

"Addiction" refers to a pattern of behaviour or substance use that is characterized by the 4Cs:

  • Craving
  • Loss of Control of amount or frequency of use
  • Compulsion to use
  • Use despite Consequences

Our service takes a holistic approach to the assessment and ongoing management of all substance use disorders, including alcohol, opioids, cocaine, tobacco and cannabis.

We do not offer treatment for behavioural addictions (eg. gambling, gaming or sexual behaviours).

  • Your Care

    This program offers an integrated approach for patients who have problematic use of alcohol, opioids, benzodiazepines, cannabis or other drugs, including:

    • Assessment of substance use concerns and review of treatment options
    • Brief individual counseling
    • Management of acute alcohol and opioid withdrawal
    • Outpatient tapering of patients on high dose opioids or benzodiazepines
    • Medication assisted treatment for alcohol use disorder, opioid use disorder and cannabis use disorder
    • Group counselling: Early Recovery group, Seeking Safety group
    • Referral to longer-term treatment programs
    • Reintegration support for patients who have completed residential treatment
    • Education on overdose prevention and use of naloxone

     Pre-visit Requirements

    Our clinic accepts self-referrals as well as referrals from family physicians and specialists. We will make every effort to accommodate urgent appointments. You will be notified of an appointment date and time by a member of our administrative staff.

    What to Expect

    We would ask that you plan to arrive 10-15 minutes before your first scheduled appointment in order to complete your registration. You may be asked to complete a self-report form regarding your general health and substance use/treatment history. You may also be asked for a urine sample. 

    If you are unable to keep your appointment, please notify our clinic secretary at 416-323-7559 x6 to cancel and/or reschedule your appointment.

  • Our Team

    Our team consists of nine addictions physicians, a social worker/psychotherapist, and an addictions Advance Practice nurse.

    • Dr. Shiyang Ding
    • Dr Caryn Green
    • Dr. Julie Henderson
    • Dr. Meldon Kahan
    • Dr. Ashok Krishnamurthy
    • Dr. Pamela Leece
    • Dr. Chetan Mehtal
    • Dr. Monique Moller
    • Dr. Dania Notta
    • Dr Alissa Tedesco
    • Dr. Ben Trepanier
    • Dr. Jennifer Wyman
    • Irene Njoroge: Advanced practice Nurse
    • Leslie Molnar: Social worker
    • Camille Keith: Outreach counsellor
    • Allan Smart: Outreach counsellor
  • Our Clinics

    Our Substance Use Clinic operates Monday through Thursday, between 9 a.m .and 4 p.m. and Friday b etween 9 a.m.  and 12 p.m. We accept patients by self-referral as well as referral from their physician. 
    An initial consultation is followed by treatment planning and follow-up, including medication, counselling, referral to community programs, and ongoing support to the patient's primary care physician. 

    The Rapid Access Addiction Medicine Clinic (RAAM) is a clinic where patients who are in urgent need of an assessment can be seen without a booked appointment and without a physician referral. Clients will be assessed by a team member (nurse or addictions counselor) and directed to a physcian.

    For more information about the RAAM clinic and META:PHI, visit:

    Clinic Hours:
    Monday, Tuesday, Thursday 10:00AM-12:00 PM
    Walk-in (no appointment necessary) but please arrive before 11:30 for registration. 

  • Patient Resources

    These guides should be given to patients that have been diagnosed with an alcohol use disorder or an opioid use disorder. They provide information about the causes of addiction, outline treatment options, and offer some suggestions for dealing with cravings in early recovery.

    Find resources at's Patient Resources page

  • Provider Resources

    The META:PHI program has a toolkit for health care providers.

    Addiction 101 for Primary Care is a resource for Family Practice Residents.


Please fax your referral to: 416-323-7739

Patient Referral (.pdf) - FOR PHYSICIANS ONLY -

Fully affiliated with

A member of

Council of Academic Hospitals of Ontario (CAHO)