To amend title XVIII of the Social Security Act to increase data transparency for supplemental benefits under Medicare Advantage.

This bill requires Medicare Advantage (MA) plans to report detailed, individual-level data on supplemental benefits (like dental or vision coverage) starting in 2027. MA organizations must submit information on eligibility, benefit types, utilization, payments, and out-of-pocket costs per enrollee to the Centers for Medicare & Medicaid Services (CMS). Beginning in 2028, CMS will make this anonymized data publicly available annually via its website for research and program evaluation. The law aims to improve transparency around supplemental benefits, directly affecting MA plans and indirectly benefiting beneficiaries through better-informed program analysis. It includes strict privacy safeguards to protect individually identifiable information.