Our Team – Psychologists & Therapists

Dr. Maria Antoniou

Clinical and Counselling Psychologist

Dr. Maria Antoniou, C.Psych

Dr. Maria Antoniou is a registered Clinical Psychologist working in private practice providing both assessment and treatment services in the areas of counselling and clinical psychology. Dr. Antoniou has a breadth of experience providing assessment and treatment for children, adolescents, adults and families. Dr. Antoniou has a special interest in the treatment of individuals with eating disorders.

Read Clinical and Counselling Psychologist Dr. Maria Antoniou‘s full bio and services.

Dr. Maria Antoniou works at both the Oakville Location and the Hamilton Location

Kyla Baird

Clinical Therapist

Kyla Baird, M.A., Ph.D. Candidate

Kyla Baird, M.A., is a Ph.D Candidate who works with children, adolescents and families and has a breadth of experience in comprehensive psychological assessments, individual, group and family-based therapies.

She has interests and experience in working with children and youth with anxiety disorders and mood disorders, Autism Spectrum Disorder, self-esteem difficulties, Eating Disorders and behaviour problems. Kyla incorporates elements of interpersonal therapy, Cognitive Behaviour Therapy and Dialectical Behaviour Therapy in treatment. She has a special interest in the treatment of eating disorders and uses Family-Based Therapy as the primary intervention.

Read Clinical Therapist Kyla Baird‘s full bio and services.

Kyla Baird works at both the Oakville Location and the Hamilton Location

Dr. Stacey Beach

Clinical and Counselling Psychologist

Dr. Stacey Beach, Psy.D

Dr. Stacey Beach is a Psychologist who completed her doctoral degree in Clinical Psychology through Adler University in Chicago, Illinois. She previously earned a Master’s degree in Clinical Psychology from Edinboro University of Pennsylvania, and a Bachelor’s degree (honours) in Psychology from King’s University College at the University of Western, Ontario.

At The Therapy Centre Dr. Beach provides assessment and treatment services to adults. She works with a variety of mental health concerns, including depression, anxiety, relationship issues, grief and loss, stress and anger management and trauma. She has a particular interest in eating disorders which was the topic area for both her master’s-level thesis and doctoral dissertation. Dr. Beach also works with the Workplace Safety and Insurance Board (WSIB), individuals who have been in motor vehicle accidents (MVA) and individuals on short and long-term disability.

Read Psychologist Dr. Stacey Beach‘s full bio and services.

Dr. Stacey Beach works at both the Oakville Location and the Hamilton Location

Mary Cook

Therapist

Mary Cook, B.Sc., M.Ed.

Mary Cook received her Master’s Degree in Counselling Psychology from the University of Toronto. Mary offers strategies from both the Emotion Focused Therapy (EFT) and Cognitive Behavioural Therapy (CBT) models with a goal to helping her clients achieve their goals and regain a sense of well-being and balance in their lives.  She enjoys working with all ages, helping children, adolescents and adults develop effective strategies to manage a variety of difficulties, including mood and anxiety disorders, relationship and work stress, general stress management, self-esteem issues as well as grief and loss. In addition to individual counselling, Mary also has extensive training and experience with Couples Therapy.

Read Therapist Mary Cook‘s full bio and services.

Mary Cook works out of the Oakville Location

Dr. Ilana Davine

Psychologist

Dr. Ilana Davine, Psy. D

Dr. Ilana Davine is a psychologist who completed her Doctor of Psychology (Psy.D) at the Adler University in Chicago, Illinois. At The Therapy Centre, she provides assessment and treatment services to both adolescents and adults.  Dr. Davine’s clinical experiences and interests involve treating individuals presenting with a variety of concerns, including mood and anxiety disorders, issues with self-esteem, self-harm behaviours, as well as LGBTQ+ mental health and issues related to sexual and gender identity. Dr. Davine completed her doctoral dissertation in the area of addictions and has specialized training in treating individuals with substance use disorders.

Read Psychologist Dr. Ilana Davine‘s full bio and services.

Dr. Ilana Davine works at both the Oakville Location and the Hamilton Location

Dr. Jenn Deffendall

Clinical and Rehabilitation Psychologist

Dr. Jenn Deffendall, C.Psych

Dr. Jenn Deffendall is a registered Psychologist who received her Ph.D. from the University of Central Florida.  She currently works in private practice providing comprehensive assessment and treatment services in the areas of clinical and rehabilitation psychology.  Dr. Deffendall has extensive training and experience working with a range of problems including depression, anxiety, post-traumatic stress, health-related issues including chronic pain, and addictions (alcohol, tobacco, cannabis, and other substances). She primarily works within a Cognitive Behavioural Therapy (CBT) framework, with the ability to integrate elements of specialized treatments (such as Dialectical Behaviour Therapy/DBT, Motivational Interviewing/MI) as needed to ensure treatment is effective.

Read Psychologist Dr. Jenn Deffendall‘s full bio and services.

Dr. Jenn Deffendall works out of the Oakville Location

Ann Gelsheimer

Clinical and School Psychological Associate

Ann Gelsheimer, M.Ed., D.T.S., M.A.

Ann is a registered Psychological Associate with the College of Psychologists of Ontario. She has completed two Master’s degrees in psychology (Counselling and Clinical Psychology), and all requirements but her dissertation for a PhD in Clinical Psychology at Fielding Graduate University. Ann is currently working in private practice providing assessment and treatment in the areas of clinical and school psychology for children, adolescents, and adults.  Ann has extensive experience providing comprehensive psychoeducational assessments for children, teens, and also adults attending post-secondary education. She also offers psychovocational assessments for teens and adults who are seeking a new career path.  Ann has specialized training and experience in the areas of learning difficulties, attention problems, recovery from trauma, mild to moderate addictions, grief and loss, supporting persons with cancer and their caregivers, and responding to spiritual concerns as a part of psychological treatment (when requested by clients). She welcomes working with persons of diverse cultures, spiritual or religious traditions, and sexual orientations.

Read Ann Gelsheimer‘s full bio and services.

Ann Gelsheimer works at both the Oakville Location and the Hamilton Location

Dr. Mary Lees

Clinical Psychologist

Dr. Mary Lees, C.Psych

Dr. Mary Lees is a registered Clinical Psychologist who received her Ph.D. from the University of Western Ontario. She completed her early training in London, Ontario at University Hospital, London Psychiatric Hospital, Victoria Hospital, St. Joseph’s Hospital and Children’s Psychiatric Research Institute

From 1994-2015, Dr. Lees was a staff psychologist at Credit Valley Hospital, Mississauga, where she worked in Inpatient and Outpatient Mental Health, Maternal/Child Care, Child and Adolescent Services, the Anxiety Disorders Program, and the Eating Disorders Program. She has particular expertise in the area of anxiety disorders and eating disorders and worked in Credit Valley Hospital’s adult outpatient and intensive, Inpatient and Day Hospital Eating Disorders Programs from 2001-2015. Dr. Lees has extensive experience with Cognitive Behavioural Therapy (CBT), but has also had training in other therapeutic models, including Dialectical Behaviour Therapy. She also offers services in the areas of stress management, work adjustment, mood disorders, relationship issues and behavioural issues.

Read Clinical Psychologist Dr. Mary Lees‘ full bio and services.

 

Dr. Mary Lees works at the Oakville Location.

Dr. Marla McGregor

Clinical and Rehabilitation Psychologist

Dr. Marla McGregor, C.Psych

Dr. Marla McGregor is a registered Psychologist who received her Ph.D. from the University of Toronto (OISE/UT). She currently works in private practice providing both assessment and treatment services in the areas of counselling, clinical and rehabilitation psychology.  Dr. McGregor has a broad base of training and experience working with mood and anxiety disorders, relationship difficulties, self-esteem, anger and stress management. She also has extensive experience assessing and treating individuals who have been involved in motor vehicle accidents and are struggling with issues such as chronic pain, phobias, post-traumatic stress disorder, depression and other interpersonal problems. She also works with individuals who are on short or long disability from their place of employment, working with insurance companies and human resources to help facilitate a successful and sustainable return to work.

Read Clinical and Rehabilitation Psychologist Dr. Marla McGregor‘s full bio and services.

Dr. Marla McGregor works at both the Oakville Location and the Hamilton Location

Katarina O'Donnell

Psychologist

Katarina O’Donnell, M.C., C.Psych

Katarina O’Donnell is a registered Psychologist with the College of Psychologists of Ontario and a member of the Ontario Psychological Association. She currently works in private practice providing treatment services to adults. Katarina’s professional background includes a Master’s Degree in Counselling Psychology. In the past, Katarina has worked with young adults in a university counselling centre and adults of various ages in family physician clinics. Katarina works within a framework that incorporates Cognitive Behavioural Therapy (CBT) and Solution-Focused Therapy (SFT). Katarina has worked with adults to resolve concerns including depression, anxiety, stress management, relationship issues, emotional regulation, and life transitions.

Read Psychologist Katarina O’Donnell‘s full bio and services.

Katarina O’Donnell works out of the Oakville Location

Dr. Susan Sprokay

Clinical Therapist

Dr. Susan Sprokay, Psy.D

Dr. Susan Sprokay is a clinical therapist who completed her Doctor of Psychology (Psy.D) at Pepperdine University in Los Angeles, California. At The Therapy Centre, she provides assessment and treatment services to adults in the context of a genuine and compassionate therapist-client relationship.

Dr. Sprokay’s clinical experiences and interests involve treating individuals presenting with a variety of concerns, including mood and anxiety disorders, adjusting to life changes, coping with grief and loss, and helping her clients increase their understanding of the way they engage with the world and with themselves. Dr. Sprokay draws on her training in contemporary psychoanalytic psychotherapy techniques, incorporating humanistic and cognitive-behavioural techniques to best support positive changes in her clients’ lives.

 

Read Clinical Therapist Dr. Susan Sprokay‘s full bio and services.

Dr. Susan Sprokay works out of the Oakville Location

Jackie Tapper-Atkinson

Therapist

Jackie Tapper-Atkinson, M.S.S., R.S.W.

Jackie Tapper-Atkinson has been in private practice in Oakville since 2006. She has over 15 years of experience in providing individual, family and group therapy for teens and adults, with extensive experience in treating depression, anxiety and relationship issues. She also has specialized training in treating body image and eating disorders. Jackie has particular interest in the application of Cognitive Behavioural Therapy (CBT) and Emotion Focused Therapy (EFT) to the treatment of eating disorders, and a range of anxiety and mood disorders. As well, she has been working on the integration of the Family-Based approach and EFT to the treatment of adolescents with eating disorders.

Read Therapist Jackie Tapper-Atkinson‘s full bio and services.

Jackie Tapper-Atkinson works out of the Oakville Location

Tracey Wade

Clinical Social Work Therapist

Tracey Wade M.S.W., R.S.W.

Tracey Wade is a registered social worker with a master’s Degree in Social Work from the University of Toronto. She holds a bachelor’s Degree in Social Work from St. Thomas University and a bachelor’s Degree in Gerontology from McMaster University. In addition to her University studies, Tracey has had post-graduate training and professional development in a variety of psychological modalities. Tracey has been providing mental health and clinical social work services to individuals, couples and families in a variety of public and private settings for more than 20 years.

Tracey enjoys working with individuals across the age spectrum. She has extensive training and experience working with a range of issues, including stress, anxiety, depression, substance and behavioural addictions, anger, life-stage adjustment, early childhood trauma, compassion fatigue & vicarious trauma, grief/loss, caregiver burnout, relationship breakdown and problems associated with ADHD. Tracey has a special interest in mental health issues impacting an aging population, and in working with caregivers in the management of responsive behaviours associated with dementia.

Working primarily from a cognitive behavioural orientation, Tracey incorporates other methodologies like solution focused therapy, motivational interviewing techniques, Emotion Focused Therapy (EFT) techniques, mindfulness and techniques from dialectical behaviour therapy.

Tracey Wade works at both the Oakville Location and the Hamilton Location

Dr. Brenda Wiley (Supervised Practice)

Psychologist

Dr. Brenda Wiley, Ph.D. (Supervised Practice)

Dr. Brenda Wiley is a psychologist who completed her Masters of Education and Doctorate in School Psychology (Ph.D.) at Texas A&M University in College Station, Texas. At The Therapy Centre, she provides assessment and treatment services to children, adolescents, and families.

Dr. Wiley’s clinical experiences and interests involve treating individuals presenting with a variety of concerns, including mood and anxiety disorders, trauma, and adjustment disorders. Brenda works primarily from a Cognitive Behavioural Therapy (CBT) framework, while integrating other therapeutic elements, such as Interpersonal Process Therapy (IPT) and Structural Family Therapy as needed. Dr. Wiley’s interest in the influence of the familial unit is related to her own doctoral dissertation on the influences of parental involvement on academic outcomes.  Dr. Wiley’s previous clinical experiences include working in community mental health, school, and hospital settings providing assessment and treatment services to children, adolescents, and their families for mood, anxiety, and trauma-related disorders.

Read Psychologist Dr. Brenda Wiley‘s full bio and services.

Dr. Brenda Wiley works at both the Oakville Location and the Hamilton Location


Dr. Karina Zorzella (Supervised Practice)

Clinical and School Psychologist

Dr. Karina Zorzella, Ph.D. (Supervised Practice)

Dr. Karina Zorzella is a psychologist providing assessment and treatment for children, adolescents, adults, and families experiencing distress related to trauma, child-parent attachment difficulties, anxiety, depression, low self-esteem, emotion regulation, behavioural problems, and relationship difficulties. She has a special interest in working with individuals dealing with trauma and preschool-aged children experiencing behavioural and emotional difficulties and their parents. Dr. Zorzella strives to create an environment of safety and trust where clients can express themselves, feel understood, and explore feelings and thoughts about what is causing them concern. Dr. Zorzella’s therapy approach is integrative and builds upon a collaborative therapeutic relationship. She integrates various therapy modalities (psychodynamic, play-based, family systems, and cognitive behavioural) to tailor treatment to clients’ unique needs, goals and preferences.

Dr. Zorzella holds a Ph.D. in Clinical-Developmental Psychology from York University where she studied the role of attachment, therapeutic alliance, and emotions in the context of trauma therapy with children and adults. Dr. Zorzella has extensive experience working in a variety of hospital, community mental health, school, and private settings. Dr. Zorzella trained at the Sick Kids Centre for Community Mental Health (formerly The Hincks-Dellcrest Centre) where she specialized, among other areas, in the assessment and treatment of infants and preschool-aged children, as well as families dealing with developmental trauma. Dr. Zorzella also provided assessment and treatment for children, adolescents, and adults seeking support for a wide range of concerns at CAMH, Women’s College Hospital, ROCK, and Peel Children’s Centre. Prior to joining The Therapy Centre, Dr. Zorzella held positions at the Peel District School Board and The Willow Centre.

Dr. Zorzella is a member of the College of Psychologists of Ontario and the Ontario Psychological Association.

Dr. Karina Zorzella works at the Oakville Location.