The purpose of this legislation is to update Medicare coverage for chiropractic services. It aims to expand the definition of a chiropractor under Medicare, allowing for broader coverage of services provided by licensed chiropractors. This change is intended to align Medicare's chiropractic coverage with that of other federal health programs and private insurance, reflecting advancements in chiropractic care and its recognized benefits. Key provisions of the legislation include the amendment of existing laws to classify doctors of chiropractic as "physicians" under Medicare.