Dr. S. Andrea Miller, C. Psych

Dr. C. Chez-Roy Birchwood, C. Psych

Dr. Rose Niles, C. Psych

Dr. Ken Colosimo, C. Psych



I hold a Ph.D. in clinical psychology from the University of New Brunswick and completed my doctoral internship training at the Children’s Hospital of Eastern Ontario. I worked at Markham Stouffville Hospital for approximately two years providing outpatient therapy and assessment. For four years, I worked at Brampton Civic Hospital providing assessment and therapy both within an inpatient and day hospital setting.
My approach is primarily cognitive-behavioural, but I also draw from humanistic and family systems therapies. Therapy is tailored to fit the needs of the person being treated and the goals they have set. I provide therapy and assessment to children, adolescents, adults, and families.


I completed a Ph.D. in Clinical Psychology at the Fielding Graduate University, Santa Barbara, California. My primary area of research pertains to psychological resilience, the ability to thrive despite severe life difficulties. I have over 20 years of experience in mental health in the community, including the role of clinical specialist. I held clinical positions at Correctional Services Canada, Canadian Mental Health Association, Winnipeg Regional Health Authority, Forensic Psychological Services, Health Sciences Centre, and St. Boniface General Hospital.

I carefully tailor my approach to serve the needs of my clients. My interventions usually involve the use of Cognitive Behavioural Therapy, augmented by Client-Centred approaches. In all interventions, I emphasize the strengths that each individual brings to resolving life-problems. I provide assessments and treatment for various conditions, including personality disorders, hoarding disorder, depression, social anxiety, panic disorder, obsessive-compulsive disorder, chronic pain, adjustment to trauma and loss, and co-occurring addiction disorders. I provide services to both adolescents and adults.


I received my Ph.D. in Counseling Psychology from the APA-accredited program at Louisiana Tech University. I completed my internship in psychology at the University of Kansas Counseling and Psychological Services. Prior to internship, I completed several practicum placements in community mental health, college counseling centers, and private practice. My training emphasized the development of generalist therapy and assessment skills with children, adolescents, and adults. After obtaining my Ph.D., I worked at Idaho State University Counseling and Testing Service, providing individual and group therapy.

I approach my clinical work from an integrative lens, drawing heavily on Cognitive Behavioral Therapy. I also incorporate multicultural counseling, mindfulness, Acceptance and Commitment Therapy, as well as Dialectical Behavior Therapy into my work in order to meet the unique needs of each client. I provide therapy to adults, adolescents, children, and families.

I hold a Ph.D. in clinical psychology from York University. I have trained and worked at several hospital and university sites providing therapy and assessment and engaged in clinical research. My approach to therapy is evidence-based and integrative, which essentially means listening carefully to the person’s experience, establishing a good connection, and then drawing upon a variety of well-established therapeutic methods depending on the goals and needs of the client. I have training in cognitive-behavioural, humanistic, and psychodynamic therapies. Examples of conditions and concerns that I work with include depression, grief/bereavement, low self-confidence, anger, worry, health anxiety, longstanding interpersonal problems, and existential concerns (e.g., lack of purpose and meaning in life; facing ‘big decisions’; death anxiety). My background also includes mindfulness meditation for those who are interested in integrating this kind of practice into therapy to strengthen attention and cultivate peace of mind. I provide therapy to adults and adolescents, and offer assessments to adults, adolescents, and children.


Dr. Kathleen Staz, C. Psych

Dr. Amanda Sherman, C. Psych

Tuesday and Thursday evenings, Saturdays. Assessments only

I obtained my doctorate in psychology from the University of Toronto. I have experience assessing and treating children, adolescents, and adults in a variety of settings, including the Toronto District School Board, the Frederick W. Thompson Anxiety Disorders Centre at Sunnybrook Health Sciences Centre, and the Department of Supportive Care at the Princess Margaret Cancer Centre. I have also worked out of a private psychology clinic in midtown Toronto.

Through psychoeducational assessment, my goal is to help children, parents, and educators to better understand children’s unique learning profiles, including areas of specific strength and need. My assessments are comprehensive and consider social and emotional influences on learning and development. I provide concrete and realistic recommendations and strategies to families and schools.

My therapeutic orientation is strongly grounded in cognitive-behavioural theory and practice. My training has predominantly been in individual and group CBT for obsessive-compulsive and related disorders, anxiety disorders, and mood disorders. I also have a special interest in the unique challenges faced by individuals with chronic illnesses. I place a high value on building and maintaining a collaborative, warm, and trusting relationship with my clients.   

I have a Ph.D. in Psychology from the University of Toronto. I completed a pre-doctoral internship with the University Health Network. Prior to my internship, I completed a practicum placement at the Vanier Centre for Women/Maplehurst Correctional Institute. I also completed a practicum in the Neuropsychology Service at Toronto Western Hospital. 

My dissertation research focused on how individual differences in mothering and mood change how one’s brain responds to their newborn. This work reflects the passion that I have for parenting and child development. I have experience working with individuals and families who are experiencing difficulties such as social anxiety, panic disorder, obsessive-compulsive disorder, health-related anxiety, depression, adjustment to challenging life circumstances, grief and trauma, oppositional/disruptive behavioural concerns, eating disorders, and personality disorders. I am also experienced at providing assessment services for learning and other difficulties.

My primary theoretical orientation is Cognitive Behavioural Therapy, although I incorporate themes from mindfulness and other acceptance-based therapies, attachment theory, motivational interviewing and Dialectical Behavior Therapy, as indicated by the goals/needs of my clients. I have experience with individual and group therapy. I see adults, adolescents, children, and families.

Dr. Lily Repa, C. Psych

Thursdays and Fridays

I received my Doctor of Psychology in clinical psychology (PsyD) from Memorial University of Newfoundland. Since 2016, I have held both inpatient and outpatient clinical training positions at various Eastern Health sites in St. John’s and rural Newfoundland where I gained experience with anxiety disorders, mood disorders, eating disorders, health and rehabilitation, ADHD and learning disorders, and substance use disorders with patients across the lifespan. I completed my predoctoral residency at the Ottawa Institute of Cognitive Behavioural Therapy. During my doctoral studies, I was also actively involved in research and teaching, and have publications in the journals Sleep, Sleep Health, and the Journal of Psychotherapy Integration. 

My primary areas of practice include the treatment of anxiety and mood disorders (i.e., social anxiety, OCD, depression, bipolar disorder, etc.), and insomnia. I also provide supportive counselling to address issues related to relationships, self-esteem, and life stress. I use an integrative, evidence-based approach primarily informed by cognitive behavioural therapy (CBT), dialectical behaviour therapy (DBT), and acceptance and commitment therapy (ACT). In every case, I endeavour to develop a strong therapeutic alliance with my patients that fosters trust and hope, and sets the stage for the implementation of a client-centred and collaborative treatment plan. I provide treatment to adolescents and adults and I provide assessment to children, adolescents and adults.

Dr. Shaina Rosenrot, C. Psych

Tuesdays, Wednesdays, Thursdays

I received my Ph.D. in child clinical psychology from the University of Guelph and completed my predoctoral residency at BC Children’s Hospital in Vancouver. I have trained in a variety of hospital and community clinical settings, including the Hincks-Dellcrest Centre (now known as the Sick Kids Centre for Community Mental Health) and the Halton District School Board. I have also held staff psychologist positions at the Toronto District School Board and the Residential Eating Disorders Program at Ontario Shores Centre for Mental Health.

I take an integrative, evidence-based approach to my clinical work, and draw upon cognitive-behavioural therapy, dialectical behaviour therapy, attachment theory, and acceptance and mindfulness-based approaches. My work is informed by an understanding of typical development, including the normative challenges and periods of growth that occur throughout childhood and adolescence. Above all, I strive to create a warm, safe, and collaborative therapeutic relationship and work with clients to determine the services that will best meet their needs and goals. I provide clinical diagnostic assessments and therapy to address a variety of emotional, behavioural, and relational concerns, including depression, anxiety (e.g., social anxiety, generalized anxiety, phobias, etc.), obsessive-compulsive disorder, and eating disorders. I also conduct comprehensive psychoeducational assessments aimed at better understanding children’s learning strengths and needs. I work with children, adolescents, and parents.