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Dr. Marianne O'Byrne - Registered Psychologist

Dr. Marianne O'Byrne

Registered Clinical Psychologist

As a Registered Psychologist and Clinical Director at Thrive Psychology and Wellness Centre, I am here to guide you through life’s most complex and difficult matters. 

I work with clients virtually across all of Ontario. I particularly enjoy helping those with:

         – Anxiety, depression, and relationship issues

         – Prenatal and postpartum transition difficulties, including birth trauma, grief and loss

         – PTSD and other difficulties related to traumatic experiences

I help clients understand and address their difficulties by focusing on unmet emotional needs, building on existing strengths to improve resilience and emotion regulation skills, and paying attention to the interplay of thoughts, physical reactions, and behavior. In doing so, I empower clients to cope more effectively with life’s struggles and to experience a greater quality of life aligned with their values and roots.

​Primarily, I practice Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and Emotion Focused Therapy (EFT). I also apply elements of Acceptance and Commitment Therapy (ACT), Schema-focused Therapy and Mindfulness-based approaches when appropriate. I adopt a flexible approach to meet clients’ individual needs and treatment goals and can offer treatment in French.

Outside of work and school, I am a proud mother of three wonderful and energetic children. I find peace and grounding in nature through being by and on the water, gardening, and enjoying outdoor activities, such as hiking, snowshoeing, and skiing. 

Ms. Nadine Simard - Psychotherapist

Ms. Nadine Simard

Registered psychotherapist  under the Supervision of Dr. Marianne O'Byrne

I am a registered psychotherapist, working under the supervision of Dr. Marianne O'Byrne. I completed a Master of Arts in Counselling Psychology at Yorkville University. I am genuine, caring, and compassionate, and I like to provide a safe therapeutic space to nurture my client’s unique strengths and aspirations. I believe mental health issues can be understood from a biological, psychological, and social perspective; therefore, I use a holistic approach to best meet each unique individual’s needs. Through my personal and professional experiences, I have gained a great understanding of human nature and I believe in empowering my clients in finding the right approach to promote positive change and achieve a healthier life. My approach to therapy balances the empathic presence of Person-Centered Therapy with the interventions and techniques of Cognitive Behavioral Therapy (CBT). As such, I aim to collaboratively make a positive difference in clients’ experience of anxiety, stress, depression or interpersonal conflict. 

About Me: About Me

Ms. Laura Garber

Registered psychotherapist under the Supervision of Dr. Marianne O'Byrne

I am a registered psychotherapist, working under the supervision of Dr. Marianne O'Byrne. I completed a Master of Arts in Counselling Psychology at Yorkville University. 
I strive to create a safe, compassionate and non-judgemental environment where clients feel heard. I use a holistic approach to help clients create long-term change in their thoughts and beliefs. I believe in using an individualized approach to support clients' understanding of the unique thought patterns that may be contributing to stressors. My goal is to help clients recognize and observe their strengths and emotions, develop positive coping skills, and reassess thought patterns. 
I practice from a client centered Cognitive Behavioural Therapy (CBT) perspective with the integration of mindfulness-based approaches, when appropriate. I look forward to supporting individual clients and couples in facilitating change and growth.


Ms. Julia Clarke

Registered psychotherapist (Qualifying) under the Supervision of Dr. Marianne O'Byrne

I am working as a registered psychotherapist (qualifying) under the supervision of Dr. Marianne O’Byrne as I complete my Master’s in Counselling Psychology from the University of Ottawa.

I approach my role as a psychotherapist from a client-centered perspective that is non-judgmental and holistic. I emphasize that clients are much more than their presenting problems and challenges, while I foster a safe, empathetic environment in which to address them. My aims in session are tailored to each client and their goals for therapeutic change, with particular attention to recognizing limiting thought patterns, developing self-compassion around difficult thoughts and emotions, and collaborating on sustainable techniques for coping with stressors.

My work is based primarily in Cognitive Behavioral Therapy (CBT), and is informed by narrative therapy and mindfulness approaches. I welcome clients of all backgrounds, and have particular experience working with 2SLGBTQ+ individuals. I look forward to addressing experiences of depression, anxiety, stress, and other concerns in collaboration with clients. 


Ms. Melissa Kay

Registered psychotherapist under the Supervision of Dr. Marianne O'Byrne

I am a registered psychotherapist (qualifying), working under the supervision of Dr. Marianne O'Byrne. I completed my Master’s in Counselling Psychology from Yorkville University.

Every individual is unique and therefore requires an individualized and holistic approach. I work from a strengths-based perspective to build on the skills and knowledge you already have to improve your mental health and wellness. You are the expert in your own life, and my goal is to support you in understanding your thoughts, feelings and beliefs and how they contribute to your struggles and successes.  I believe that the therapeutic relationship is a vital part of therapy and strive to provide a comfortable and safe space for you to share and explore your thoughts, feelings and feedback. 

I work primarily from a cognitive behavioural perspective and also borrow techniques from solution-focused therapy, emotionally-focused therapy and mindfulness. I support adults (18+), and I have a particular interest in serving parents in the prenatal and postpartum periods. 
I look forward to working with you on your therapeutic journey. 

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Ms. Jasmine Olsen

Training Psychotherapist (Qualifying) under

the Supervision of Dr. Marianne O'Byrne

I am a registered psychotherapist (qualifying), working under the supervision of Dr. Marianne O’Byrne, as I complete my Master’s in Counselling Psychology from Yorkville University.

I offer a therapeutic space where individuals can expect to feel accepted and safe to share anything that they bring into therapy. My approach is person-centered, trauma-informed and anti-oppressive. I primarily work from a Cognitive Behavioural Therapy (CBT) lens, but will use strategies from other therapies such as mindfulness, emotion-focused, and attachment-based. I respect the individuality of each person and will adapt my style to find an approach that fits best for you.

My personal clinical interests focus on the experiences of pregnant and postpartum women, families navigating challenges of starting a family, those that have experience with trauma, and individuals with Panic Disorder, OCD, and phobias.

You are the expert of your own life. Whether you are looking for relief, safety or growth, I am passionate about providing a non-judgemental space where I can walk alongside you on your journey.

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Ms. Julie Putman

Occupational Therapist, practicing psychotherapy under the Supervision of Dr. Marianne O’Byrne

I am an occupational therapist registered with the College of Occupational Therapists of Ontario.  I completed a Master of Science in Occupational Therapy at  Queen’s University. I started my career focusing on physical health but I inevitably made the shift to work in the world of mental health as it was calling to me; I recognized this is where my strength and passion lies. Over my career I have taken steps to build my skills and competence in psychotherapy. I now practice psychotherapy under the Super vision of Dr. Marianne O’Byrne. I believe my diverse background and clinical experience offers me a unique lens to understand and support clients.

I am known for my down-to-earth and compassionate approach to care. I strive to create a safe, and non-judgemental therapeutic space for clients. I recognize the importance of understanding clients’ unique values to build a strong therapeutic relationship and to help guide therapy. I primarily use acceptance and commitment therapy (ACT) and cognitive behavioural therapy (CBT) approaches in therapy. I love to create opportunities for skill building with clients in the areas of mindfulness and interpersonal communication. 

My clinical interests are in the areas of anxiety & stress, depression, trauma, and burnout. I am also passionate about the mind-body connection and believe in the importance of tuning into the wisdom of our body to honour our own human needs, to support healing, and build a rich, meaningful life. 

I look forward to working with you and supporting you on your own healing journey.

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