A home health physical therapist assistant (PTA) visits patients at their homes to perform a variety of duties as directed by a physical therapist (PT). As an assistant, you provide direct aid to your patients, such as observing them before, during, and after sessions, providing them with a variety of activities designed to improve their body, taking notes about their progress, and reporting patient progress to the physical therapist. Sometimes the PTA works directly with the PT, while at other times you work independently, only reporting to the therapist when you return to the office. You do not prescribe medicine.