The purpose of this legislation, known as the Medicare Advantage Cost Transparency Act, is to enhance transparency in the Medicare Advantage program. It aims to ensure that specific information is included in the encounter data submitted by Medicare Advantage plans. This information is intended to provide a clearer picture of the costs associated with healthcare services for beneficiaries. The key provisions of the Act require Medicare Advantage plans to include detailed information in their encounter data starting from January 1, 2027.