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Welcome to

Cathy Nagy Psychology

  • Are you struggling with a problem, and no matter how hard you try, you just can’t seem to find a solution?
  • Are you feeling overwhelmed with stress in your life and don’t know how to change it?
  • Do you hope for things in your life to change, but find that the same patterns keep happening?
Often the most difficult part of entering into therapy is simply making the decision to start. If you have found your way to this site, you are at least considering it as an option.

You may have already tried everything that you know to help yourself. Or maybe you feel all alone and your problems consume your thoughts. You might be wondering if it is time to involve a mental health professional…someone who can objectively look at your life and help you to discover, understand, and change the things that may be holding you back from experiencing a more fulfilling and meaningful life.

Psychotherapy can help you to find solutions to the problems in your life

By applying a therapeutic approach that is personalized to you, we will work together to help you to:

Gain insight. 

Talk therapy is a powerful medium for change.

Talking with a non-biased, trained and experienced psychotherapy professional is completely unlike other relationships that people typically have in their lives. It is an opportunity to learn about yourself and see aspects of your life in an entirely new way. When you begin to look at things differently, alternate options become available, you become less stuck, and have a clearer idea of what you could do to change.

Achieve growth.

When you know better, you can do better.

Sometimes just having a different perspective can allow you to make choices that will work better for you in your life. Through psychotherapy, you can take what you have discovered about yourself and then begin to apply new skills and healthier strategies to the areas of your life that you would like to improve. Through change comes growth.

Experience happiness.

You define your own

With insight and growth come an increase in self-esteem and an awareness of your inherent strengths and capabilities. This experience then leads you to feelings of empowerment and belief in your ability to cope with future problems. When in this state of positive well-being you are most likely to feel satisfied and content with yourself and your life. It is within your control.


We are pleased to announce that we have expanded and are now open at our newly custom built, beautifully appointed clinic located in the Victoria Place Building at 66 Baldwin St., Brooklin, Suite #300.

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Cathy Nagy, MA., C.Psych. Assoc.

Cathy is a clinical Psychological Associate registered for autonomous practice with the College of Psychologists of Ontario. This registration qualifies her to be able to offer psychological testing, formulate and communicate mental health diagnoses, and provide treatment in the form of talk therapy.

She works in the areas of clinical, counselling and rehabilitation psychology, with adults, couples, and adolescents. She received her Master’s degree in clinical psychology from York University, and has been providing psychotherapy to the Durham community and surrounding areas since 2005, through her work in various private practice settings and community agencies.

Therapeutic Approach

Her approach to working with clients is transparent and authentic, meaning that she shares with clients what she is thinking and why. She believes in creating a relationship that builds trust and respect, creating a safe environment for her clients to explore the most sensitive and painful areas of their life. She works together with her clients to match their uniqueness with approaches and strategies that are most likely to lead to success – however they have defined it.

All people are unique and so no one process will work for every client. She draws from various psychological theoretical orientations including cognitive behavioural (CBT), EMDR, client-centred, and solution focused frameworks. She has experience working with a broad range of problems within both long term and brief models of therapy, and will draw from these various approaches depending on a client’s particular needs and presenting issues. She is deeply committed to helping clients to develop the tools they need to address their difficulties, to understand themselves more fully, and finally, to live a better and more fulfilling life.

Registered Psychotherapist

Dianne Kennaley, MSW., RSW., RP.

Dianne is a registered social worker and psychotherapist with over 20 years of experience in the Durham Region and is registered with both the Ontario College of Social Workers and Social Service Workers, and the College of Registered Psychotherapists of Ontario. She graduated with a Master’s degree in Social Work from Wilfrid Laurier University in 1998. Since that time, she has worked in various clinical settings as both a psychotherapist and a clinical supervisor. Her practice is focused on work with adults, couples and adolescents with a wide range of presenting issues and concerns.

Therapeutic Approach

In working therapeutically with people, Dianne operates from a collaborative and strengths based approach. Ultimately, her belief is that all people inherently possess the potential for success and happiness. Part of her work will concentrate on identifying her clients’ innate strengths and abilities and how they can harness these strengths so that they can overcome obstacles in their lives. She finds that this approach enables individuals to find creative, satisfying, and long lasting solutions to their problems. The end goal of successful therapy is for clients to leave with a new level of insight that allows them to achieve growth and increased self-esteem which leads to feeling empowered and able to cope with future problems. As needed, she incorporates cognitive behavioural, solution focused, and narrative approaches to therapy.

Registered Psychotherapist

Alyssa Mulrain, MA, RP.

Alyssa has a Masters Degree in Counselling Psychology from Yorkville University and has significant experience facilitating individual, and couples therapy with adult and adolescent populations. Alyssa is a Registered Psychotherapist with the College of Registered Psychotherapists and had worked as both a clinical therapist and manager. Alyssa also has experience working with veteran and first responder populations as well as for private and non-profit organizations. Alyssa’s experience has given her the opportunity to work with clients encountering a multitude of mental health concerns such as anxiety and mood disorders, personality disorders, simple and complex trauma and addictions.

Therapeutic Approach

Alyssa is a deeply empathetic and compassionate therapist that works collaboratively with clients to aid in their empowerment, belief in the self, and ability to create positive change to enhance their quality of life. Alyssa believes that each client is unique with regards to the way they view who they are, their experiences, and how they interact with the world around them and tailors her work to suit their specific needs. Alyssa believes it is important to foster a non-judgemental and genuine therapeutic environment. Alyssa utilizes a holistic and eclectic approach in her therapeutic work including modalities such as Cognitive Behavioural Therapy, EMDR Therapy, Psychoanalytic Psychotherapy, Dialectical Behaviour Therapy, and Family Systems.

Registered Psychologist

Dr. Janette M. Collier, C. Psych.

Dr. Collier is a Clinical Psychologist registered with the College of Psychologists of Ontario. She received her PhD in Clinical Psychology from the University of Windsor in the year 2000. For over 20 years she has provided psychological assessment and treatment in both York and Durham Region in a variety of settings.

She works in the area of clinical psychology, with adults and older adolescents. Over her years in private practice, she has helped clients with a variety of issues, including: anxiety, panic and stress; depression; trauma/PTSD; coping with chronic illness and injuries; history of emotional/sexual/physical abuse; loss and grief; and, coping with significant life changes.

Therapeutic Approach

Dr. Collier strives to provide a warm, supportive environment for her clients to explore what is troubling them. Her belief is that compassion and respect should be key components to the relationships she has with her clients. She maintains a health-oriented approach, working with clients to maximize their potential. Her treatment services are individualized to address each client’s difficulties and personality style, keeping in mind the context within which they live their lives. She strives to increase clients’ awareness of their difficulties, the underlying reasons behind their behaviour and decisions, and the obstacles that may prevent them from making positive changes in their lives to allow them to cope better.

Utilizing a basic caring, respectful, compassionate approach, she draws from a broad range of therapeutic techniques, including Cognitive Behavioural (CBT), Insight-oriented, Interpersonal, Humanistic, Supportive Therapy, and Eye Movement Desensitization and Reprocessing (EMDR) Therapy.

Registered Psychotherapist

Lindsay Reynolds, M.Ed., RP.

Lindsay Reynolds is a Registered Psychotherapist with 19 years of experience providing treatment to people with mental health and substance use concerns. She holds a Master's Degree in Education with a concentration in mental health and addictions counselling from Cambridge College in Massachusetts. She has applied her therapeutic skills in various roles since that time, within inpatient, acute care, residential and private practice settings. Over the past decade she has been a counsellor and clinical education leader at a local community hospital in Oshawa. She loves engaging therapeutically with older adolescents (16+), adults, and couples to assist them with their particular individual mental health needs.

Therapeutic Approach

Lindsay uses her genuine warmth and empathy for human struggles to connect with clients in a way that fosters collaboration and openness toward psychological growth and change. She finds that this approach helps clients to feel empowered while working toward their desired goals, and allows them to find ways to achieve such things as behavioral change, processing of past trauma, handling of conflict, or managing worry, low mood or grief.

She draws from a variety of evidenced-based treatment modalities such as Dialectical Behavioral Therapy (DBT), Cognitive Behavioural Therapy (CBT), Mindfulness Based Stress Reduction (MBSR), Motivational Interviewing and other client-centered approaches.

Social Worker

Jennifer Cox, MSW., RSW.

Jennifer is a registered social worker with 22 years of experience working in the mental health field. She earned her degrees at Wilfrid Laurier University and has completed additional training in marriage and family therapy, as well as management and leadership. She is a master level facilitator of Applied Suicide Prevention Skills Training (A.S.I.S.T.). She currently spends her days working as the Integrated Director in the Mental Health and Community Program at Northumberland Hills Hospital and Campbellford Memorial Hospital. She cultivates her passion for direct client service providing psychotherapy with our clients on Thursday evenings.

Therapeutic Approach

Jennifer strives to create safe and comfortable therapeutic relationships with her clients by being fully present, engaged, supportive and non-judgemental. At the same time, she fosters a collaborative approach which enables clients to be proactive participants in the process of change allowing them to reach their personal treatment goals. Jennifer draws upon her vast experience in the mental health field to meet each client where they are in the moment, assessing particular needs and applying a variety of empirically supported psychotherapeutic modalities tailored to each client’s presenting concerns.

Social Worker

Odil Sadikian, MSW., RSW.

Odil is a Registered Social Worker with over 15 years of combined clinical experience working with youth, adults and families in various hospital and community settings. Odil has a Master’s Degree from University of Windsor as well as a Child and Youth Care degree from University of Ryerson. She also has completed additional training in DBT, and has an Addiction Care and Treatment Certificate from University of British Columbia. She has sound knowledge of emergency psychiatry, addiction issues, biopsychosocial assessments, crisis intervention, critical incident debriefings, treatment plans, and counselling. She specializes in a wide range of mood related disorders such as depression, anxiety, and seasonal affective disorder, as well as relationship difficulties, trauma, substance abuse, and emotional distress.

In addition, she is experienced in leading and facilitating a variety of groups such as DBT, ADBT, and Substance Misuse groups. For the past 6 years Odil has been working as a Crisis Intervention Specialist in the Emergency Department of York Region hospitals, where she has served thousands of patients and their families. A critical part of her role has been to provide comprehensive crisis assessments, interventions, and short-term counseling using a wide range of therapeutic modalities such as DBT, Mindfulness, CBT, EMDR, and Solution Focused Therapy.

Therapeutic Approach

Odil experiences joy in guiding clients towards their unique path using a therapeutic approach that is integrative and eclectic. She engages in a person-centered approach, drawing on concepts such as self-discovery, mindfulness, self-love, self-acceptance, and self-compassion. She utilizes a wide range of techniques drawing from Dialectical Behavioural Therapy, Narrative therapy, Cognitive Behavioural Therapy, and Solution Focused Therapy. She works in collaboration with individuals to recognize their strengths, develop healthy coping skills and create positive life changes in a safe and non-judgmental setting. Through this collaborative approach, she works to empower individuals to move forward in leading a more complete and fulfilling life.

Registered Psychotherapist

Alexandria Baker, BA, CPGC, RP

Alex is a Registered Psychotherapist with 19 years of clinical experience in the mental health and addictions field. She holds a degree from Trent University with a major in psychology. She also holds a designation as a Certified Problem Gambling Counsellor. She’s had the privilege to therapeutically support first responders, adults, adolescents (12+) and couples in the Durham Region with a variety of mental health concerns. She’s supported couples repairing loss of trust within relationships, individuals relieving symptoms of anxiety and depression and journeys of healing from trauma, grief and loss.

Therapeutic Approach

Alex appreciates the courage it takes for an individual to seek support and uses her empathy and compassion to create a safe and welcoming environment. She is client-centred and tailors her therapeutic approach to the client’s unique goals and motivations for seeking support while building on strength and resiliency. She works from a lens of Motivational Interviewing to apply her clinical skills, including Dialectical Behavioural Therapy, Acceptance and Commitment Therapy, Cognitive Behavioural Therapy Family Systems and Mindfulness-based approaches.

Office Admin Assistant/Intake Coordinator

Jennifer Vranchidis

Jennifer brings over 18 years of office administration and management experience to our practice in her role as our Administrative Assistant and Intake Coordinator. From her background in both legal and medical practices, Jennifer has an in-depth understanding and sensitivity for clients connecting with our office with various presenting concerns, providing care while upholding the utmost standards of professionalism, compassion and confidentiality. Jennifer highly values her role as the first point of contact in our clinic, and takes great effort to ensure that clients feel welcomed and at ease. She is our go-to person for scheduling and billing inquiries and uses her comprehensive knowledge of our therapists, practice policies, and day-to-day operation of our clinic to efficiently complete the intake process for our new clients and respond to existing client requests.

The time for you is now.

Take action.

Our services are covered by extended health benefit plans that cover psychological or psychotherapy services provided by:

  1. Individuals supervised by, or registered with, The College of Psychologists of Ontario (Psychological Associate, Psychologist)
  2. MSW’s (Masters of Social Work)
  3. RP’s (Registered Psychotherapist)
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The members of our team have extensive experience in the following areas:

  • Depressive Disorders
  • Anxiety Disorders
  • Work/life balance and stress issues
  • Marital/Relationship difficulties
  • Family of origin issues
  • Trauma
  • Post Traumatic Stress
  • Adjustment Disorders
  • Grief
  • Workplace Issues

Career Opportunities

Full time or Part Time Associates
Durham - Brooklin