Dr. Best completed his Ph.D. in clinical psychology at Queen’s University in Kingston, Ontario. Following completion of his Ph.D. he completed his clinical residency at the Aaron T. Beck Center for Recovery Oriented Cognitive Therapy under the mentorship of Dr. Aaron T. Beck, developer of cognitive behavioural therapy. Following completion of this residency training, Dr. Best joined the Graduate Department of Psychological Clinical Science at the University of Toronto where he supervises and trains graduate students in the delivery of cognitive behavioural therapy. Dr. Best is director of the Therapeutic Interventions for Psychosis lab which conducts research to improve the effectiveness of CBT for psychosis. Additionally, Dr. Best is Director of the Clinical Research and Evaluation Center at the University of Toronto, an interdisciplinary research centre focused on improving psychotherapy for a broad range of difficulties. Dr. Best has experience treating a wide range of issues from a cognitive behavioural approach including depression, anxiety, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety, phobias, personality disorders, relationship difficulties, stress, work performance, and grief. Dr. Best’s speciality is working with people experiencing serious mental health conditions such as schizophrenia, psychotic disorders, and bipolar disorder to reduce symptoms, distress, and help people recover so that they can live the life they want to live. Dr. Best also has a particular interest in working with first responders, as well as members of the Royal Canadian Mountain Police and Canadian Armed Forces. ​

Dr. Best is an active psychotherapy researcher who is currently conducting multiple large-scale clinical trials of psychotherapies for serious mental health conditions. He has published countless research articles and book chapters on serious mental health conditions and is actively involved in improving treatment approaches. He is a Diplomate of the Academy of Cognitive Therapy and is Certified by the Canadian Association of Cognitive and Behavioural Therapies. He is a Review Editor for the journal Frontiers in Psychiatry, newsletter editor for the Canadian Association of Cognitive and Behavioural Therapies, and serves on the executive committee of the North American Cognitive Behavioural Therapy for Psychosis Network.

Dr. Best completed his Ph.D. in clinical psychology at Queen’s University in Kingston, Ontario. F... Read More

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Dr. Aya Cheaito is an assistant professor at Concordia University in Edmonton and a clinical associate at the Canadian Centre for CBT. She received her PhD from the University of Vermont with a concentration in clinical and developmental psychology. During her residency at The Royal Ottawa Mental Health Centre, she worked at the Operational Stress Injury and Neuropsychology clinics. Dr. Cheaito focuses on assessing and treating trauma with veterans, refugees, and torture survivors. She works primarily from a cognitive behavioural framework and provides evidence based therapies, including Cognitive Processing Therapy and Prolonged Exposure to help people recover from trauma. Dr. Cheaito also provides cognitive behavioural therapy for psychosis for individuals who are experiencing psychosis. Dr. Cheaito is fluent in English, French, and Arabic and provides services in all three languages. Her research focuses on the underlying structural brain changes accompanying emotion dysregulation as well as idioms of distress among marginalized populations.

Dr. Aya Cheaito is an assistant professor at Concordia University in Edmonton and a clinical asso... Read More

Taylor Gaunce is a Registered Psychotherapist (CRPO) and Licensed Counselling Therapist (CCTNB) who specializes in evidence-based approaches to mental health care, including Cognitive Behavioural Therapy (CBT). She received her Doctorate in Counselling and Psychotherapy from Yorkville University. Taylor blends academic expertise with clinical experience to support individuals facing anxiety, depression, trauma, substance abuse, bipolar disorder, and psychosis among other presenting issues. ​

Taylor’s therapeutic approach is rooted in CBT and supported by additional training in trauma-informed and attachment-focused interventions. This approach allows for a uniquely tailored, client-centered approach that addresses both symptoms and underlying patterns of thoughts and behaviours. In addition to providing CBT for a variety of presenting concerns, Taylor provides Eye Movement Desensitization and Reprocessing (EMDR) for post-traumatic stress disorder (PTSD). Taylor has expertise working with first responders, veterans, and active service members of the armed forces and RCMP. ​

In addition to clinical work, Taylor is involved in counselling education and mental health advocacy, contributing to the growth of the field through instruction and ongoing professional development. Taylor is committed to providing culturally responsive and ethically grounded care, with a particular focus on accessible and effective support for diverse and underserved populations.

Taylor Gaunce is a Registered Psychotherapist (CRPO) and Licensed Counselling Therapist (CCTNB) w... Read More

Dr. Gunther completed his Ph.D. in clinical psychology at Université de Montréal, and is a licensed clinical psychologist in both Ontario and Quebec. He completed his clinical residency training at the McGill University Health Center, where he worked with diverse adult populations facing a variety of complex emotional and behavioural concerns using a cognitive-behavioural therapy (CBT) framework.

Dr. Gunther provides assessment and treatment for adults dealing with various challenges, including anxiety (generalized anxiety disorder, panic attacks, social anxiety, health anxiety, phobias), ADHD, obsessive-compulsive disorder, depression, insomnia, body-focused repetitive behaviours (such as hair pulling and skin picking), self-esteem issues, and relationship difficulties. He supports clients in managing both everyday stressors and more persistent challenges, helping them develop clarity, self-compassion, and practical skills to navigate life and relationships with greater confidence.

Dr. Gunther is committed to creating a safe, supportive, and collaborative therapeutic environment where clients feel heard, understood, and empowered to make meaningful, lasting changes in their lives. With a focus on real-world outcomes, he works alongside clients to develop personalized strategies that foster emotional well-being, resilience, and personal growth, while ensuring that each client’s unique needs and goals remain central to the therapeutic process.

Dr. Gunther completed his Ph.D. in clinical psychology at Université de Montréal, and is a licens... Read More

Dusko Miljevic is a Registered Social Worker in the province of Ontario. He completed his undergraduate degree in Psychology and Masters degree in Social Work at the University of Windsor. Dusko has 15 years of experience working in the field of mental health. Dusko is passionate about providing trauma-informed care for his clients and creating a therapeutic space in which clients feel safe, respected, and empowered.

Dusko integrates evidence-based therapies such as Cognitive Behavioural Therapy (CBT), Dialectical Behavioural Therapy (DBT), and Acceptance Commitment Therapy (ACT) to provide his clients with services that are tailored to their unique needs. Dusko is trained in Eye Movement Desensitization & Reprocessing Therapy (EMDR), Cognitive Processing Therapy (CPT), Prolonged Exposure for PTSD, and Written Exposure Therapy, which allow him to provide structured, evidence-based treatments to individuals struggling with PTSD and trauma-related concerns. Dusko provides psychotherapy services for veterans, police officers, first responders, and adults struggling with symptoms of trauma, anxiety, stress, and mood-related challenges. Dusko is a staff Social Worker with the Operational Stress Injury Clinic at The Royal Ottawa Mental Health Centre, where he provides services to members of the Canadian Armed Forces and Royal Canadian Mounted Police.

Dusko Miljevic is a Registered Social Worker in the province of Ontario. He completed his undergr... Read More

Rida Riaz is a Registered Social Worker with a strong foundation in evidence-based psychotherapy. She works with individuals navigating anxiety, depression, OCD, PTSD and trauma, neurodivergence, disability and life transitions. She also provides LGBTQIA2s+-affirming care through an intersectional lens and supports clients experiencing relationship difficulties, grief, suicidal thoughts, or self-harm. Rida believes every individual brings strengths and the capacity for growth, and she collaborates with clients to build emotional regulation, self-compassion, and meaningful change.

Her approach integrates Cognitive Behavioural Therapy (CBT) with Dialectical Behaviour Therapy (DBT), Narrative Therapy, and mindfulness-based strategies. Grounded in common factors theory, she prioritizes building a strong, trusting therapeutic relationship and creating a safe, fostering space where clients feel understood and empowered.

Rida completed her Master of Social Work at Carleton University and holds an Honours Bachelor of Science with High Distinction from the University of Toronto. She is a Registered Social Worker in good standing with the OCSWSSW and is committed to ongoing professional development and reflective practice to provide ethical, research-informed care.

Rida Riaz is a Registered Social Worker with a strong foundation in evidence-based psychotherapy.... Read More

Dr. Shamblaw completed her doctoral training in clinical psychology at Queen’s University in Kingston, Ontario. She completed her clinical health psychology residency at the University of Manitoba with a focus in women’s mental health (including perinatal health, women’s trauma, and chronic pain).​ Dr. Shamblaw has experience treating depression, anxiety, trauma- and stress-related disorders, and mental distress due to physical illness. She has a particular interest in working with adults who have experienced trauma, including those with histories of childhood trauma, as well as women navigating the prenatal and postpartum periods. Concurrent to her work at the Canadian Centre for CBT, Dr. Shamblaw is a staff psychologist with the Operational Stress Injury Clinic at The Royal Ottawa Mental Health Centre, where she provides services to members of the Canadian Armed Forces and Royal Canadian Mounted Police. Dr. Shamblaw works from a cognitive-behavioural approach integrating mindfulness, self-compassion and acceptance techniques as needed.

Dr. Shamblaw completed her doctoral training in clinical psychology at Queen’s University in King... Read More

Dr. Tamaian completed her PhD in clinical psychology at the University of Regina and is a registered clinical and forensic psychologist. At Best Psychological Services, Dr. Tamaian focuses primarily on providing comprehensive psychological assessment services for adults. She approaches assessment work with compassion and curiosity while maintaining a strong commitment to clinical rigour. Her assessments are trauma-informed and grounded in evidence-based methods, with attention to understanding the multifaceted effects of trauma on mental health, functioning, and day-to-day life. Dr. Tamaian has extensive experience providing psychological assessment services across a range of public-sector settings, including correctional environments and forensic psychiatric hospitals. Through this work, she has developed strong expertise in complex diagnostic presentations and trauma-related conditions.

Dr. Tamaian completed her PhD in clinical psychology at the University of Regina and is a registe... Read More