The people behind the care
Compassion, collaboration, and clarity guide everything we do.
Christal Castagnozzi, M.Psy., C. Psych.
Psychologist, Founder, and Clinical Director
Christal provides therapy and comprehensive psychological assessments for children, adolescents, and adults. She is known for her calm, steady presence and her ability to make complex findings feel clear and actionable. Her work integrates CBT, DBT, ACT, and psychodynamic therapy. She is passionate about helping clients understand themselves in ways that bring relief, direction, and confidence.
Who she works with: Children, adolescents, and adults
Special interests: Anxiety, depression, ADHD, autism, learning difficulties or giftedness, behavioural concerns, bullying, peer relationships, friendship struggles, trauma, grief and loss, identity development, stress and burn out, relationship challenges, parenting support, self-esteem and confidence, all assessment services
Availability: Monday, Tuesday, Friday afternoons
Rate: Assessment fees vary; $250 per hour for therapy sessions
Booking: Accepting new clients for assessments only. Reach out to learn more.
Mary Badalian, RSW, MSW
Registered Social Worker
Mary supports adolescents and adults using an integrative approach that includes CBT, DBT, ACT, and narrative therapy. She is especially skilled at helping clients strengthen emotional regulation and self-confidence while navigating life transitions or relationship challenges.
Who she works with: Teens and adults
Special interests: Anxiety, Depression, ADHD, behavioural concerns, bullying, peer relationships, friendship struggles, trauma, grief and loss, identity development, stress and burn out, relationship challenges, parenting support, self-esteem and confidence
Rate: $180 per hour
Booking: Mary is accepting new clients. Reach out to book a free consultation.
Zoe Klein, RSW, MSW
Registered Social Worker and Psychotherapist
Zoe works with children, teens, and adults using an integrative, trauma-informed lens. Her approach blends CBT, ACT, and psychodynamic therapy to help clients better understand their thoughts, emotions, and patterns. Clients appreciate her gentle, validating style and clear communication.
Who she works with: Children, teens, and adults
Special interests: Anxiety, depression, ADHD, autism, behavioural concerns, bullying, peer relationships, friendship struggles, trauma, grief and loss, identity development, stress and burn out, relationship challenges, parenting support, self-esteem and confidence
Rate: $180 per hour
Booking: Zoe is accepting new clients. Reach out to book a free consultation.
Marley Goldenberg, RSW, MSW
Registered Social Worker
Marley brings warmth and creativity to her work with children, teens, and families. She integrates play therapy, CBT, and mindfulness-based techniques to help clients process experiences and build practical coping tools. Marley is deeply committed to creating sessions that feel engaging and safe.
Who she works with: Children, adolescents, adults, and families
Special interests: Anxiety, depression, ADHD, autism, behavioural concerns, bullying, peer relationships, friendship struggles, trauma, grief and loss, identity development, stress and burn out, relationship challenges, parenting support, self-esteem and confidence
Rate: $180 per hour
Booking: Marley is accepting new clients. Reach out to book a free consultation.
Shelby Federman, MA in Counselling Psychology
Registered Psychotherapist (Qualifying)
Shelby brings a grounded, compassionate presence to every session, ensuring you feel seen, heard, and truly understood. She specializes in working with children, teens, and young adults—particularly university students—helping them navigate academic challenges, career concerns, and the complexities of growing up.
Who she works with: Children, teens, and adults
Special interests: ADHD, autism, learning difficulties, academic pressure, procrastination, burnout, career planning, generalized anxiety, depression, stress, peer conflict, family dynamics, self-esteem, grief, loss, and life transitions.
Rate: $180 per hour
Booking: Shelby is accepting new clients. Reach out to book a free consultation.
Lyora Jocsak, MPsy
Clinical Associate
Lyora brings nearly a decade of experience supporting children, youth, and families across school, residential, and community mental health settings. She approaches her work with warmth, curiosity, and a genuine commitment to trauma-informed, neurodiversity-affirming care.
Who she works with: Children, adolescents, adults, and families
Special interests: Emotional and behavioural regulation, trauma, ADHD, autism, anxiety, peer relationships, psychoeducational and psychodiagnostic assessment support
Rate: $150 per hour
Booking: Lyora is accepting new clients. Reach out to book a free consultation.
Shania Hossain
Office Coordinator
Shania is an aspiring clinical psychologist currently enrolled at Toronto Metropolitan University. She is passionate about bridging the gap between diverse communities and mental health services. As a South Asian Muslim woman, she actively advocates for cultural competence and ensures every client feels seen, heard, and valued.
Meet the rest of our team
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Dr. C is a seasoned professional with over two decades of experience optimizing the mental health and holistic wellbeing of children, teens, and their families. A graduate of the prestigious Canadian College of Naturopathic Medicine (CCNM) and a part-time academic and clinical faculty member, she brings extensive pediatrics and mental health expertise to her practice. Dr. C has supervised thousands of pediatric cases and is a highly regarded speaker and writer on pediatrics and mental wellness topics.
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Provvidenza holds a Master of Science in Occupational Science and Occupational Therapy from the University of Toronto and an Honours Bachelor of Kinesiology from York University. Currently a candidate in Naturopathic Medicine, Provvidenza integrates her extensive background to offer a holistic approach to health and wellbeing.
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With a wealth of experience and a deep commitment to empowering individuals with ADHD, Samantha is a seasoned ADHD coach. Her expertise, coupled with a background in special education and specialized training in ADHD and Executive Function coaching, ensures that she brings a compassionate and results-oriented approach to each client.
Learn more about Samantha. -
With over a decade of experience, Nisha is passionate about helping clients achieve their goals and supporting them through their journey of healing and growth. Her extensive experience spans working with children, adolescents, and adults, ensuring she caters to a wide range of needs with expertise and empathy.
No matter who you meet at Thrive, you can expect the same values
Warmth, expertise, and genuine curiosity about who you are and what will help.
