Mark C. Dumas, Ph.D,

Licensed Clinical Psychologist

Dr. Mark C. Dumas is a licensed clinical psychologist with more than 30 years of experience working with children, adolescents, adults, and families. He brings extensive experience in psychological assessment, diagnostic evaluation, and the identification of developmental, behavioral, and mental health concerns.

Throughout his career, Dr. Dumas has developed particular expertise in the assessment of Attention Deficit/Hyperactivity Disorder (ADHD), Autism Spectrum Disorder, and Intellectual Disability. His background also includes evaluating a broader range of emotional, behavioral, and psychological concerns when individuals or families are looking for greater clarity around a diagnosis or treatment needs.

At Brightside Behavioral Health, Dr. Dumas provides comprehensive psychological testing and diagnostic evaluations for children and adults. His approach is focused not simply on arriving at a diagnosis, but on helping individuals, families, and treatment providers better understand what the results mean and how they can be used to guide meaningful next steps.

Dr. Dumas brings decades of clinical experience to Brightside and shares our commitment to making high quality psychological assessment more accessible, understandable, and useful for the individuals and families we serve.