This legislation amends the Public Health Service Act to significantly expand and improve healthcare services for individuals with developmental disabilities. It redefines them as a "special medically underserved population," enabling health centers and the National Health Service Corps to specifically target and serve their needs. The bill authorizes the Secretary to award grants to existing health centers, allowing them to establish or operate new delivery sites that provide comprehensive primary health services, including specialized dental care, tailored for this population. A key requirement for grant recipients is the provision of specialized treatment, ensuring appropriate care. To support these expanded services, the bill authorizes an appropriation of $15,000,000 annually for fiscal years 2026 through 2030, ensuring dedicated funding. These funds are intended to supplement, not replace, existing healthcare expenditures for this group. Furthermore, the legislation includes individuals with developmental disabilities in the criteria used to designate Health Professional Shortage Areas , aiming to increase the availability of healthcare professionals equipped to serve them.