Dr. John Zarske is a licensed psychologist and board-certified clinical neuropsychologist based in Flagstaff, AZ. He earned a bachelor's degree in psychology at Marquette University and a doctorate at Northern Arizona University where he was a postdoctoral intern with the Institute for Human Development. Dr. Zarske has extensive experience with a wide variety of clinical conditions in diverse settings including inpatient acute care, ICU and postsurgical floors; psychiatric, skilled nursing and rehabilitation units; and outpatient multi-specialty hospital and university affiliated clinics. He has served as an expert witness in federal and Arizona civil and criminal litigation matters and consults with a variety of IME clearing houses, medical specialty clinics, and treating professionals.

Currently in independent practice, he is a forensic and clinical consultant with CogNet Rehabilitation Solutions of San Dimas, California. He previously held positions as clinical neuropsychologist with the Northern Arizona Healthcare Medical Group- Departments of Primary Care and Neurology, in affiliation with the Flagstaff Medical Center and as adjunct assistant professor at the University of British Columbia and Northern Arizona University. He is a member of several professional organizations including the National Academy of Neuropsychology, National Register of Health Service Psychologists, and the American Psychological Association. He is a Fellow with the College of the American Board of Professional Neuropsychology and a past president of the Arizona Psychological Association. 

Dr. Zarske’s experience working with patients in various stages of their healthcare journey from acute care and hospitalization to outpatient care and rehabilitation has engendered a deep appreciation of the patient-centered approach focused on patient and family education, coping strategies, and lifestyle modifications to help manage cognitive problems.