A neurologist is a medical specialist who diagnoses and treats disorders of the brain, spinal cord, and nerves. They evaluate patients with neurological symptoms, conduct detailed examinations, order and interpret diagnostic tests, and develop treatment plans. He or she is responsible for examining, diagnosing, and treating diseases, disorders or injuries of the brain, spinal cord and peripheral nerve. A neurologist's work conditions may vary depending on work hours and workplaces. He or she provides consultation to patients to determine the appropriate course of treatment.