Online & In-Person Therapy in Sarnia, Ontario
Meet The Team
Finding the right therapist is a meaningful step toward healing, growth, and emotional well-being. At THRIVE Psychological Services, our team of psychologists, registered psychotherapists, social workers, and nurse psychotherapists is committed to providing a safe, inclusive, and trauma-informed space where you feel genuinely heard, understood, and supported.
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We utilize a shared care approach to ensure the treatment you receive meets our high standards for quality. Check out our FAQ to learn more about what this means.
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Whether you're seeking support for anxiety, depression, trauma, relationship issues, or simply looking to feel more like yourself again, we’re here to walk beside you.
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Get to know our compassionate team of mental health professionals below—and take the first step toward feeling better.
Kristen Deuzeman, C.Psych
Psychologist & Clinic Director
Hello, I’m Kristen, a Registered Clinical and Organizational Psychologist with the College of Psychologists of Ontario (CPO) and the founder of THRIVE. My approach to therapy is grounded in compassionate, evidence-based care, that is tailored to the unique challenges my clients face. Equipped with undergraduate and graduate degrees in psychology and counselling from the University of Ottawa, and post-graduate studies at Concordia University in psychological assessment, I assess, diagnose and treat people who seek to improve their mental wellbeing. I am keenly interested in organizational psychology. As such, I help improve employee wellbeing and performance through corporate training and consulting, assessments, coaching. A former professor of psychology at Algonquin College, Lambton College and Concordia University and current corporate trainer for the ACHIEVE Centre for Leadership, I promote exploration, self-awareness, and continuous learning as integral factors for improving and maintaining individual and organizational resilience. I have also worked extensively in disaster and emergency management; developing and delivering training to first responders and leading teams of responders during some of Canada’s worst disasters including the Wabasca Fires (2015), Horse River Fire (2016), Alberta Spring Flooding (2018), and the COVID-19 pandemic (2020-2021). As a result, I have firsthand insight into the workplace culture and high-stakes situations faced by first responders and frontline workers. I understand the toll these experiences can take, and I’m here to help. If you’re feeling overwhelmed, struggling with the weight of your work, or simply looking for support, I am here to help.
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Jane Allen, MC, B.Eng, MBA, C.Psych
Psychologist
Hi, I’m Jane, a Registered Psychologist with the College of Psychologists of Ontario (CPO). I work with both couples and individuals, helping them navigate challenges in relationships, career struggles, life transitions, and emotional well-being. In my work with couples, I support those facing relationship dissatisfaction, conflict, infidelity, and differences in sexual desire. For individuals, I help those struggling with anxiety, depression, and feeling stuck - whether due to career frustrations, fear of change, or a lack of meaning in life. My goal is to provide hope, insight, and a fresh perspective to every client. I take the time to find the right approach for each person, ensuring therapy feels like a good fit. My path to becoming a psychologist was a second career. I originally earned a B.Sc. in Engineering and an MBA, but my passion for helping people find clarity and fulfillment led me here. If you’re feeling stuck, overwhelmed, or uncertain about your next steps, I’d love to help you find a way forward.
Amber Brown, MACP
Registered Psychotherapist
Hi, I’m Amber, a Registered Psychotherapist and trauma therapist with a deep commitment to helping individuals of all ages navigate the emotional weight of trauma and life’s challenges. My approach is compassionate, supportive, and grounded in evidence-based therapies, including Eye Movement Desensitization and Reprocessing (EMDR), Cognitive Behavioural Therapy (CBT), Dialectical Behaviour Therapy (DBT), and Mindfulness. I specialize in working with first responders, veterans, and survivors of sexual assault, but I also recognize that trauma comes in many forms. It’s not just about major events, it can stem from childhood bullying, self-esteem struggles, divorce, harassment, grief, childbirth, or significant life transitions. No matter what your experience looks like, your pain is valid, and healing is possible. In therapy, I provide a safe and supportive space where we can explore your experiences, build resilience, and develop coping strategies. My goal is to help you reframe negative thoughts, strengthen self-worth, manage anxiety and depression, and move forward with confidence. I also have a deep understanding of child and adolescent development, helping young clients process identity struggles, family changes, bullying, and social isolation. By fostering self-esteem and emotional wellness, I support children and teens in developing the confidence to navigate their world. Beyond my work as a therapist, I’m passionate about mental health advocacy and raising awareness of trauma’s impact on well-being. When I’m not in session, I enjoy athletics, reading, and spending time with my young family - experiences that shape both my personal and professional growth. If you’re ready to begin your healing journey, I’d love to support you.
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Brooke Horley, MACP
Registered Psychotherapist
Hi, I’m Brooke, a mental health counsellor with a Master of Arts in Counselling Psychology and Psychotherapy. As a Registered Psychotherapist (RP) with the College of Registered Psychotherapists of Ontario and a member of the Ontario Association of Mental Health Professionals, I provide a welcoming, supportive space for clients of all ages. I have a special focus on working with adolescents and young adults, helping those navigating ADHD, anxiety, depression, and life’s many challenges. That said, my approach is adaptable. I believe therapy should meet you where you are, no matter what stage of life you’re in. In addition to therapy, I am also trained in completing Voice of the Child reports, ensuring that children’s perspectives are recognized and valued in decision-making processes. At the heart of my work is a person-centered, strengths-based approach. I believe that you are the expert in your own life, and my role is to help you tap into your strengths, build confidence, and develop tools to navigate whatever comes your way. My goal is to create a space where you feel empowered, supported, and capable of creating meaningful change. If you’re looking for a therapist who will listen, guide, and collaborate with you on your journey, I’d love to help.
Miranda Clubb, RN, BSCN
Nurse Psychotherapist
Hi, I’m Miranda, a Registered Nurse Psychotherapist with a unique, evidence-based approach that blends my background in nursing, psychotherapy, and education. My goal is to help you build resilience, navigate life’s challenges, and create lasting change in a way that feels supportive and empowering. I specialize in working with individuals facing anxiety, depression, grief and loss, perinatal mental health concerns, and the adjustment to new medical or mental health diagnoses. I also help clients navigate life transitions, burnout prevention and recovery, and building meaningful relationships. My practice is open to all ages, including children, youth, adults, and families. In addition to working with individuals, I also support healthcare providers struggling with burnout and vicarious trauma. I understand the toll that caregiving roles can take, and I provide a space to process, heal, and regain a sense of balance. I use a variety of evidence-based therapies, including Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), Acceptance and Commitment Therapy (ACT), and Polyvagal Theory, to help clients develop nervous system regulation and emotional resilience. If you're looking for support, whether for yourself, your family, or your professional well-being, I’m here to help.
Chris Lindsay, MEd, RSW
Registered Social Worker
Hi, I'm Chris. When you’re struggling with depression, anxiety, or trauma, even the simplest daily tasks can feel overwhelming. You’ve probably tried to make things better on your own, but when progress feels slow, it’s easy to feel discouraged. Even if you’re feeling stuck, a part of you still hopes that with the right support, life can feel lighter again. With 30 years of experience, I help individuals and families navigate anxiety, trauma, depression, relationship challenges, and processing difficulties like ADHD. I use a variety of therapeutic approaches, including EMDR, Internal Family Systems (IFS), Cognitive Behavioral Therapy (CBT), and Experiential Therapy, tailoring each session to fit your unique needs. I love what I do, and I believe in the strength and resilience of every person I work with. Clients often tell me they feel truly seen, heard, and respected in our sessions. No matter where you’re starting from, I’m here to help you move forward, at your own pace, in a way that feels right for you.
Nicole Rickard
Administrative Assistant
Hi, I'm Nicole, the administrative assistant for Kristen Deuzeman and Thrive Psychological Services! I'm currently a student of web development at Algonquin College, but I have plenty of prior experience (personal and educational) studying mental health as I've worked to increase my own sense of well-being. That passion for mental wellness translates to my job as I prioritize being a welcoming and supportive first point of contact for all clients of our clinic. I will often be the first person you speak with whenever you call or email our clinic. It's my priority to respond to all messages in a timely manner, and to follow through with each client request to ensure you get the assistance you need, whether you're looking to book your very first appointment or have been seeing us for a long time already. Oftentimes, my job entails matching you with the practitioner at our clinic that I think best meets your needs, but when there's something I can do directly you can bet I'll do my best to help! Aside from my current studies in web development, I also have an eclectic history studying forensic science, anthropology, social sciences, and even veterinary medicine. I love to learn and I enthusiastically bring that passion for education to my work as an administrative assistant. I look forward to speaking with you and helping to support your ongoing mental wellness journey!