Dr. Cook is a clinical psychologist, who specializes in pediatric neuropsychology, and an Instructor of Physical Medicine and Rehabilitation at Harvard Medical School.

Dr. Cook received his Ph.D. in clinical psychology at the University of Rhode Island and completed his clinical internship at Massachusetts General Hospital/Harvard Medical School. He then completed a three-year clinical-research fellowship in neuropsychology and traumatic brain injury at Massachusetts General Hospital, Spaulding Rehabilitation Network, and Harvard Medical School.

Dr. Cook sees patients for neuropsychological consultation and assessment through the MassGeneral Hospital for Children (MGHfC) Sports Concussion Program, a multidisciplinary clinic providing individualized and holistic concussion treatment and rehabilitation, and the Pediatric Post-Acute Care Evaluation (PACE) Clinic, a multidisciplinary clinic providing comprehensive follow-up assessment and rehabilitation planning for children who had critical illnesses or traumatic injuries and required care in the MGHfC PICU.

Dr. Cook has an active research program designed to improve pediatric concussion and brain injury assessment, treatment, and rehabilitation, seeking to lay the foundation for providing children and adolescents with more personalized and effective health care to promote their recovery and restoration of function. His research focuses on the acute effects, recovery trajectories, and treatment and rehabilitation needs of youth who sustain injuries to their brains, with an emphasis on the potential unique needs of youth with pre-existing neurodevelopmental disorders, particularly attention-deficit/hyperactivity disorder (ADHD). Dr. Cook has published over 30 peer-reviewed publications and has lectured widely on such topics as pediatric concussion assessment, treatment and rehabilitation.