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Dr. Lesley Miller
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About Me

Dr. Miller is the Director of Brookside Psychologists and is a clinical psychologist and neuropsychologist working with adults. Her primary area of practice pertains to neuropsychological assessment and treatment of traumatic brain injury. She recently served as President on the Board of the Brain Injury Association of Peel/Halton and is a member of the Ontario Brain Injury Association.

Dr. Miller also offers counselling treatment for anxiety, depression, post-traumatic stress disorder, and chronic pain, primarily using a cognitive behaviour therapy (CBT) approach. She also provides client-centred counselling with regard to identity and relationship issues, particularly gender identity related concerns. She practices within an LGBTTIQ-affirmative framework.

Dr. Miller completed her Ph.D. degree in Counselling Psychology at the University of Toronto in 2011. Since 2000, Dr. Miller has held clinical positions at the Centre for Addiction and Mental Health (in the Inpatient/Outpatient Psychological Assessment Service and WSIB-funded Psychological Trauma Program) and the University Health Network – Toronto Rehabilitation Institute (UHN-TRI – Traumatic Brain Injury Recovery Study). She completed her master’s and doctoral training placements at Sunnybrook Health Sciences Centre (Neuropsychology & Aging Program), CAMH’s WSIB-funded Work, Stress, and Health Program, and St. Joseph’s Healthcare Hamilton (Anxiety Treatment and Research Centre, Neuropsychology Consultation Service, and Behavioural Medicine).

Contact Information and Address

Email: [email protected]

Website: Go to website


Work Address

274 Fourth Ave, Unit 4, St Catharines, ON, L2S 0B6

Phone: (905) 641-0789

Work Address

104-3060 Mainway Dr., Burlington, ON, L7M 1A3

Phone: (905) 335-5300

Professional Information

Sliding Scale: No

Age Group: Adult

Remote Assessment: Yes

Virtual Services: Yes

Area of Practice: Clinical, Clinical Neuropsychology, Counselling

Service Language: English

Problem Area: ADD/ADHD, Adjustment, Anxiety, Assertiveness, Autism/Neurodevelopmental, Bereavement/Grief, Body Focused Repetitive Behaviours (e.g. hair pulling & skin picking), Brain Injury/Neurocognitive, Chronic Illness, Developmental Disability, Dissociative Symptoms/Disorder, First Responders/PSP, Gender Dysphoria, Insomnia/Sleep Disorders, Issues Related to Being in Conflict with the Law, LGBTQS+, Mood Disorders (e.g. Bipolar, Depression), Motor Vehicle Accident, Obsessive Compulsive Disorder (OCD), Pain Management, Personality, Phobias, Relationship Issues, Relaxation/Stress Management, Somatic Symptoms, Suicide & Self-Harm