David Nowell, Ph.D., is a clinical neuropsychologist in private practice in Northborough, Massachusetts. He offers consultations to patients on an inpatient rehabilitation unit and is an adjunct instructor in neuropsychology to graduate students in the Clark University psychology program. He serves as a physician advisor with the University of Massachusetts Medical School Disability Evaluation Service where he was the former clinical director of the Learning Disability Assessment Program. Dr. Nowell writes a popular blog at Psychology Today on motivation and time management, and speaks internationally to clinicians on such topics as executive functioning, non-medication management of ADHD, and applying findings from Positive Psychology.