A-Z Neuropsychology, LLC is concerned primarily with the provision of comprehensive neuropsychological assessment services for individuals of all ages. Neuropsychological assessment can be an extremely useful tool for diagnostic clarification, and as a means of directing clinical treatment. Assessment can also be used as a means of tracking one’s treatment progress over time. Referrals for neuropsychological testing often come from Neurology, but can come from other disciplines as well.