The main purpose of this legislation is to enhance the role of physical therapists in the healthcare system, particularly in underserved areas. It aims to allow physical therapists to participate in the National Health Service Corps Loan Repayment program, which helps healthcare professionals pay off their student loans in exchange for working in areas with limited access to care. Additionally, it seeks to expand Medicare services to include physical therapy, ensuring that patients can receive these essential services in rural health clinics and federally qualified health centers.