The Hamilton Centre for Cognitive Behavioural Therapy
The Hamilton Centre for Cognitive Behavioural Therapy
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    • Home
    • What is CBT
    • About Us
      • About Us
      • Clinicians
      • Services
      • Clinic Policies
      • Privacy Policy
      • CoVid-19 Information
    • Contact Us
  • Home
  • What is CBT
  • About Us
  • Contact Us

Clinicians

Welcome to the Hamilton Centre of Cognitive Behavioural Therapy. 

We  are a multidisciplinary team including psychologists and social workers. 

 All therapists have received specialized training in cognitive behaviour therapy. 

Dr. Randi McCabe

Dr. Randi McCabe

Dr. Randi McCabe

Dr. Randi McCabe

​Dr. McCabe is a Registered Clinical Psychologist. She is the  Director of the Anxiety Treatment and Research Clinic and Psychologist-in-Chief at St. Joseph's Healthcare Hamilton. She is also a Professor in the Department of Psychiatry and Behavioural Neurosciences at McMaster University where she is the CBT Anxiety Module Coordinator for the Postgraduate Psychiatry Psychotherapy Program. 

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Jenna Boyd

Dr. Jenna Boyd

Dr. Randi McCabe

Dr. Randi McCabe

Dr.  Boyd is a registered Clinical Psychologist. She completed her Ph.D. in Clinical Psychology at McMaster University in 2019 and her residency at St. Joseph’s Healthcare Hamilton at the Anxiety Treatment and Research Clinic, Mood Disorders Program, and Community Psychiatry Clinic. She specializes in the treatment of trauma and post-trau

Dr.  Boyd is a registered Clinical Psychologist. She completed her Ph.D. in Clinical Psychology at McMaster University in 2019 and her residency at St. Joseph’s Healthcare Hamilton at the Anxiety Treatment and Research Clinic, Mood Disorders Program, and Community Psychiatry Clinic. She specializes in the treatment of trauma and post-traumatic stress disorder, anxiety disorders, obsessive compulsive disorder, and mood disorders. Dr. Boyd is also a staff psychologist at the Anxiety Treatment and Research Clinic at St. Joseph’s Healthcare Hamilton

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Jennifer Denney

Jennifer Denney

Dr. Randi McCabe

Dr. Elmar Gardizi

Jennifer Denney  received a Masters of Psychology from the Adler Professional School of Graduate Studies in Toronto. She provides CBT for adults with a range of presenting concerns including anxiety disorders (social anxiety, panic, generalized anxiety/excessive worry, specific phobias), obsessive compulsive disorder and related disorders

Jennifer Denney  received a Masters of Psychology from the Adler Professional School of Graduate Studies in Toronto. She provides CBT for adults with a range of presenting concerns including anxiety disorders (social anxiety, panic, generalized anxiety/excessive worry, specific phobias), obsessive compulsive disorder and related disorders, trauma, depression and related issues including stress, low self-esteem and relationship concerns.

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Dr. Elmar Gardizi

Dr. Elmar Gardizi

Dr. Elmar Gardizi

Dr. Elmar Gardizi

Dr. Gardizi is a Registered Psychologist in the province of Ontario, with a specialization in the practice of clinical neuropsychology and clinical psychology with adults and seniors. He received his Honours Bachelor of Science with a major in Neuroscience and minors in Psychology and Biology from the University of Toronto. 

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Dr. David Grant

Dr. David Grant

Dr. Elmar Gardizi

Dr. David Grant

Dr. Grant is a Registered Clinical Psychologist who provides CBT to adults with mood, anxiety, and alcohol- and substance-related disorders. 



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Raha Hassan

Dr. Elmar Gardizi

Dr. David Grant

Raha Hassan is a PhD Candidate in McMaster’s Clinical Psychology program who is clinically supervised by Dr. Randi McCabe. She has experience treating individuals with various anxiety, anxiety-related, trauma, and mood disorders.

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Dr. Taylor Hatchard

Dr. Taylor Hatchard

Dr. Katherine Holshausen

Dr. Taylor Hatchard

Dr. Hatchard is a Registered Clinical Psychologist and works with adolescents and adults. He specializes in mood and anxiety disorders, and emotion regulation difficulties. Dr. Hatchard also works as a staff psychologist at St. Joseph’s Healthcare Hamilton at the Youth Wellness Centre and is an Assistant Professor in the Department of Psy

Dr. Hatchard is a Registered Clinical Psychologist and works with adolescents and adults. He specializes in mood and anxiety disorders, and emotion regulation difficulties. Dr. Hatchard also works as a staff psychologist at St. Joseph’s Healthcare Hamilton at the Youth Wellness Centre and is an Assistant Professor in the Department of Psychiatry and Behavioural Neurosciences at McMaster University. 

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Dr. Jenny Hewitt

Dr. Jenny Hewitt

Dr. Katherine Holshausen

Dr. Taylor Hatchard

Dr. Hewitt is a Registered Clinical Psychologist specializing in CBT for adults and adolescents with anxiety and mood-related concerns. She has over 10 years of experience in private practice and hospital settings.


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Dr. Katherine Holshausen

Dr. Katherine Holshausen

Dr. Katherine Holshausen

Dr. Katherine Holshausen

Dr. Holshausen is a Registered Clinical Psychologist. She specializes in mood and anxiety disorders, posttraumatic stress disorder/complex trauma, and emotion regulation difficulties. Dr. Holshausen also works as a staff psychologist and Research Director of the Community Psychiatry Clinic at St. Joseph’s Healthcare Hamilton. 


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Dr. Brenda Key

Dr. Brenda Key

Dr. Katherine Holshausen

Dr.  Key is a registered clinical psychologist with expertise in the treatment of adults with anxiety, depression, insomnia and general stress.  She has specialized training in cognitive behavioural therapy, mindfulness based stress reduction and mindfulness based cognitive therapy. She is an assistant professor at McMaster University and

Dr.  Key is a registered clinical psychologist with expertise in the treatment of adults with anxiety, depression, insomnia and general stress.  She has specialized training in cognitive behavioural therapy, mindfulness based stress reduction and mindfulness based cognitive therapy. She is an assistant professor at McMaster University and the former chair of communications for the Canadian Association for Cognitive and Behavioural Therapies.   


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Zahra Khalesi

Dr. Brenda Key

Zahra Khalesi

  Zahra Khalesi is a PhD Candidate in McMaster University’s Clinical Psychology program. She has experience treating individuals with various anxiety and anxiety related disorders, mood disorders, insomnia, and complex disorders such as psychosis and schizophrenia.

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Katie McCabe

Katie McCabe

Dr. Brenda Key

Zahra Khalesi

Katie McCabe is a registered Social Worker with specialized training in Cognitive Behavioural Therapy.  She is also a credentialed member of the Canadian Association of Cognitive and Behavioural Therapies.Currently, in addition to her role at the HCCBT, she holds positions as a social worker at the Mood Disorders Program at St. Joseph’s H

Katie McCabe is a registered Social Worker with specialized training in Cognitive Behavioural Therapy.  She is also a credentialed member of the Canadian Association of Cognitive and Behavioural Therapies.Currently, in addition to her role at the HCCBT, she holds positions as a social worker at the Mood Disorders Program at St. Joseph’s Healthcare and as a part time assistant professor in the Department of Psychiatry and Behavioural Neurosciences at McMaster University.


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Dr. Colleen Merrifield

Dr. Colleen Merrifield

Dr. Colleen Merrifield

Dr. Merrifield is a Clinical Psychologist who specializes in anxiety, depression, and related difficulties. She is licensed to practice with both youth (13-17) and adults (18+). She is also a Staff Psychologist at St. Joseph’s Healthcare Hamilton, an Assistant Professor in the Department of Psychiatry and Behavioural Neurosciences at McMa

Dr. Merrifield is a Clinical Psychologist who specializes in anxiety, depression, and related difficulties. She is licensed to practice with both youth (13-17) and adults (18+). She is also a Staff Psychologist at St. Joseph’s Healthcare Hamilton, an Assistant Professor in the Department of Psychiatry and Behavioural Neurosciences at McMaster University, and a Clinical Consultant for the Ontario Structured Psychotherapy (OSP) Program – West Region, a provincial program focused on increasing access to evidence-based psychotherapy for depression, anxiety, and anxiety-related conditions for Ontarians. 

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Dr. Marisa Murray

Dr. Marisa Murray

Dr. Colleen Merrifield

Dr. Colleen Merrifield

Dr. Murray is a Registered Clinical Psychologist who has specialized training in Cognitive Behavioural Therapy (CBT). She works with adolescents and adults presenting with concerns related to mood, anxiety, relationship conflict, emotion dysregulation, work/school stress, sleep difficulties, body image concerns, self-esteem, perfectionism

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Dr. Luke Schneider

Dr. Luke Schneider

Dr. Colleen Merrifield

Dr. Luke Schneider

Dr. Schneider is a Registered Clinical Psychologist with specializations in Clinical and Health Psychology for adults. Dr. Schneider has experience providing cognitive behavioural therapy (CBT) and related therapies (mindfulness, acceptance-based approaches) to help adults struggling with a wide variety of concerns such as depression, anx

Dr. Schneider is a Registered Clinical Psychologist with specializations in Clinical and Health Psychology for adults. Dr. Schneider has experience providing cognitive behavioural therapy (CBT) and related therapies (mindfulness, acceptance-based approaches) to help adults struggling with a wide variety of concerns such as depression, anxiety, chronic pain, and trauma. In addition to his role at the HCCBT, Dr. Schneider holds a position as a Postdoctoral Fellow at the Anxiety Treatment and Research Clinic at St. Joseph's Hospital.

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Christina Sguazzin

Christina Sguazzin

Dr. Luke Schneider

Christina Sguazzin is a Registered Psychotherapist with the College of Registered Psychotherapists of Ontario (CRPO), as well as a Canadian Certified Counsellor with the Canadian Counselling and Psychotherapy Association (CCPA). She received a Master’s of Education in Counselling Psychology at the University of Ottawa. She has training an

Christina Sguazzin is a Registered Psychotherapist with the College of Registered Psychotherapists of Ontario (CRPO), as well as a Canadian Certified Counsellor with the Canadian Counselling and Psychotherapy Association (CCPA). She received a Master’s of Education in Counselling Psychology at the University of Ottawa. She has training and experience using a variety of trauma-informed, 3rdgeneration cognitive behavioural therapies, including Cognitive Behavioural Therapy (CBT), and specializes in mood and anxiety disorders, stress/crisis, trauma, addictions, chronic pain, and returning to work.

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Dr. Victoria Stead

Christina Sguazzin

Dr. Victoria Stead

Dr.  Stead is currently a Psychologist in Supervised Practice. She completed her Ph.D. in Clinical Psychology at McMaster University in 2021, and her residency at the Royal Ottawa Mental Health Centre in the Transitional Age Youth Service of the Substance Use and Concurrent Disorders Program, the Youth Outpatient Program, and the Communit

Dr.  Stead is currently a Psychologist in Supervised Practice. She completed her Ph.D. in Clinical Psychology at McMaster University in 2021, and her residency at the Royal Ottawa Mental Health Centre in the Transitional Age Youth Service of the Substance Use and Concurrent Disorders Program, the Youth Outpatient Program, and the Community Mental Health Program. Dr. Stead specializes in the treatment of co-occurring substance use and mental health disorders, emotion dysregulation, trauma, and anxiety disorders. Dr. Stead is also a staff psychologist with the Concurrent Disorders Outpatient Programs at St. Joseph’s Healthcare Hamilton.

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Lindsay Szota

Lindsay Szota

Christina Sguazzin

Dr. Victoria Stead

Lindsay Szota received her Master’s degree in Clinical Psychology in 2017 from the University of Western Ontario. Her graduate research focused on predictors of negative thinking styles in depression.

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