Practitioners


Carmen portrait

Carmen Littlejohn, MA, Clinical Advisor

Carmen holds a master’s degree in clinical and somatic psychology and a master’s degree in spiritual psychology. Carmen is a certified member of the Canadian Counselling and Psychotherapy Association (CCC). She also holds a bachelor’s degree in kinesiology and physical therapy.

Don Khalsa

Over Don’s 30 year journey with plant medicines, he has been fortunate enough to study with Elders who carried knowledge and sacred practices of their lineages. As a medicine carrier, he holds this knowledge with deep gratitude and respect. His skills and wisdom come together to create and hold ritual space in ceremony.

Donald portrait

Donald Currie, Clinical Director - Algonquin Highlands

A registered psychotherapist and integrative mental health provider with over 20 years of experience running a private practice. Donald was a key member of the clinical team at Helix Healthcare Group, a treatment facility for mental health and addiction. Donald now leads Retreat programming at Dimensions Algonquin Highlands. His clinical work focuses on healing through somatic and trauma therapies that are evidence-based and supported by neuroscience research. To guide Dimensions guests in the process of preparing and integrating their ceremonial experiences, he integrates relational somatic psychotherapy, sensorimotor psychotherapy, EMDR, Acceptance and commitment therapy, and internal family systems therapy with complementary wellness practices.…

DJ Portrait

Dr. Douglas Cook, Chief Medical Officer

Dr. Cook is Chairperson and Head of Neurosurgery at Queen’s University in Kingston, Ontario. Cook practises cerebrovascular and skull base neurosurgery at Kingston Health Sciences Centre. His research program is focused on brain network dynamics in health, disease and recovery.

Jesse portrait

Jesse Hanson, PhD, Chief Clinical Officer

Jesse holds a PhD in clinical psychology, specializing in neuropsychology and somatic therapy. He leads the Dimensions clinical team from his home base in Costa Rica. Jesse comes to Dimensions with over 19 years of experience in the health and wellness field, including three years working on A&E’s documentary series Intervention, eight years working in the holistic wellness field, and nearly 10 years at Passages Malibu, a world-renowned luxury treatment centre in the holistic health field built around multi-faceted treatment with a team approach.

Linda Griffin

Dimensions’ Managing Director, Hospitality Linda is a global hotelier with more than 30 years of international experience in the hospitality industry, including 26 years with Hilton Hotels. She arrives at Dimensions from Jumeirah Hotels in the United Arab Emirates where she focused on the development of a luxury resort in Abu Dhabi. Linda leads the hospitality division of the growing collection of psychedelic plant-based medicine Retreats for Dimensions worldwide

Miriam Echeverria

Executive Chef, Dimensions “Our connection to the earth and ourselves is strengthened when we eat with mindfulness and reflect on the experience,” says Chef Echeverria. Born and raised in Veracruz, Mexico, Miriam moved to Canada in 2008 and swiftly made her entrance into the Toronto culinary scene. Miriam was named “one of the reasons to love Toronto” by Toronto Life magazine and one of the 16 best female chefs in the city. As founder of Cheffing 4 Good, a non-profit organization in support of women in need, she hosts charitable, plant-based dinners in collaboration with other women in the industry.