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Young Adult Substance Use Program (YA-SUP)

Young adulthood is an "in-between" period of transitioning from adolescence to adulthood. That is why other names for people in this age group include Transition Aged Youth or Emerging Adults. It is a unique time for self-discovery, building relationships, and becoming independent. Many young adults also experience lots of uncertainty and change. This can make the transition challenging to navigate. The Young Adult Substance Use Program (YA-SUP) aims to meet these unique needs. We offer 2 separate streams. There is a Young Adult Stream for young adults (17-25) looking to make changes to their substance use. We also offer a Loved Ones stream, for loved ones of young adults with substance use problems.

Who is the program for?

  • Young adults aged 17-25 who are looking to make changes to their substance use

  • Young adults looking for individual and group-based treatment

  • Young adults not in immediate crisis *please contact COAST in immediate crisis (905)-972-8338

“You define your goals. We are here to meet you where you are at and support you in reaching your goals.” 

Check out our newest study and participation opportunity!
For more information email:

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YA-SUP Research

YA-SUP with the support of the Peter Boris Centre for Addiction Research (PBCAR) engages in research projects examining young adult substance use, mental health, and concurrent disorders.


Your Care Team 

We have a multi-disciplinary and collaborative team with expertise in mental health and community support counselling, nursing, addiction psychiatry, and substance use research.


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Sabrina Syan, PhD, PhD, CPsych

Synopsis coming soon :)


Brittany Medeiros-Peixoto, MN, NP

Hi, my name is Brittany and I am a Nurse Practitioner with the Young Adult Substance Use Program. In my spare time I enjoy spending time with my family and friends, gardening, trying new food and I am also an avid camper.

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Mike Paterson, CCSW, AAC

Greetings and salutations!  My name is Mike and I am a community support counsellor with the YA-SUP team.  My experience in addictions and mental health is rooted in community supports with a peer approach.  Outside of work I am a work out enthusiast and I look forward to working with you in your recovery journey.


Kiefer Cowie, Psy.D., C.Psych (Supervised Practice)

Synopsis coming soon :)

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Chelsey Fedchenko, CSC, Peer Specialist

Hi, my name is Chelsey. I am part of the clinical team at YA-SUP. I seek to empower young adults struggling with mental health and substance use issues and provide them with the support needed to achieve balance and wellbeing in their everyday lives. In my spare time I enjoy gardening, swimming, and spending time with my two-year-old daughter.


Paige Hastings, RSW MSW BSW

Synopsis coming soon :)


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Liah Rahman

Hi, my name is Liah. I’m a research coordinator with the Peter Boris Centre for Addictions Research and Concurrent Disorders Program. Outside of work I enjoy reading, spending time outside, paying with my cat, discovering new music, and cooking.

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Myra Massey

Hi, my name is Myra, and I am a Research Assistant on the Young Adult Substance Use Program. Outside of work, I enjoy hiking, listening to music, and outdoor adventures.

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Julianne Devries

Hi, my name is Jules and I am a research assistant at the Peter Boris Centre for Addictions Research. I have been a part of YASUP for over a year now! Outside of work I enjoy travelling, spending time with family/friends and watching reality TV!

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Emily Mote

Hi, my name is Emily and I am a Research Assistant at the Peter Boris Centre for Addictions Research.  In my spare time, I enjoy reading, baking, and going for walks with my dogs.



James MacKillop, PhD

I'm James and I direct the Peter Boris Centre for Addictions Research. I'm a psychologist and I'm interested in understanding the causes of substance use challenges and the best ways people can make changes in their lives. Outside of work, my wife and I wrangle two kids and a dog, and I'm a running enthusiast.

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Catherine McCarron, MSW

Hello, my name is Catherine, and I'm both a registered social worker and manager of the Young Adult Substance Use Program. In my free time I enjoy sailing and going on adventures with my niece and nephew.

Youth Services in Hamilton

Loved Ones Education Group 

Detailed Program Overview



Contact Us 


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