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Kate Caldwell, MA

Therapist · Ontario Registered Psychotherapist

Kate provides specialized, evidence-based therapy for adolescents and adults experiencing OCD and anxiety. She uses Cognitive Behavioral Therapy (CBT) and Exposure and Response Prevention (ERP), the gold-standard treatment for OCD, to help clients understand obsessive thoughts, reduce compulsions, and regain confidence in their daily lives. Kate also uses Prolonged Exposure Therapy (PE) and supports clients navigating trauma, grief, and major life transitions, creating a compassionate and collaborative space where they can feel understood and supported throughout their treatment.

Obsessive-Compulsive Disorder (OCD)

Providing evidence-based treatment using Exposure and Response Prevention (ERP), the gold standard for OCD, to help clients reduce anxiety, overcome compulsions, and reclaim their daily lives.

Specialized expertise in treatment for OCD including:

Racial Trauma & Post-Traumatic Stress Disorder (PTSD)

Utilizing trauma-informed therapies, including Prolonged Exposure and evidence-based cognitive interventions, to help clients safely process difficult experiences and restore a sense of safety and control, including individuals healing from race-based traumatic stress. Kate specializes in providing care that is culturally conscious and provides a safe space to process microaggressions and racial trauma. 

Psychedelic Integration

Offering specialized support for those seeking guidance in integrating meaningful psychedelic experiences into their ongoing personal growth and mental health journey.

Featured Publications 

  • Gran-Ruaz, S., Caldwell, K., McIntyre, M., Bartlett, A., Nepton, A., & Williams, M. (2025). A clinical case series: Evaluation of a novel healing racial trauma protocol. Traumatology. https://doi.org/10.1037/trm0000602 – Read more! 

  • Williams, M. T., Cénat, J. M., Osman, M., Caldwell, K., Gallo, J., & Faber, S. (2024). Les microagressions raciales comme obstacles au traitement en soins cliniques. Canadian Psychology/Psychologie canadienne, 65(3), 163. https://doi.org/10.1037/cap0000383 – Read More! 

  • Rochester, J., Vallely, A., Grof, P., Williams, M. T., Chang, H., & Caldwell, K. (2022). Entheogens and psychedelics in Canada: Proposal for a new paradigm. Canadian Psychology/Psychologie Canadienne, 63(3), 413. https://doi.org/10.1037/cap0000285 – Read More! 

Begin Your Care

Kate provides psychotherapy in both English and French for adolescents (12+) and adults seeking support with OCD, trauma, anxiety, grief, racial trauma, psychedelic integration, and life transitions. Whether you are beginning therapy for the first time or looking for specialized, evidence-based care, Kate is committed to helping you build resilience, gain insight, and create lasting change.