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

This bill would add a new requirement to the Medicare Advantage program to improve transparency around supplemental benefits (extras like vision, dental, hearing, over‑the‑counter items, fitness programs, etc.). Starting with plan years after January 1, 2029, MA organizations would have to submit enrollee‑level data on these supplemental benefits to the Secretary of Health and Human Services. The data would cover eligibility, the types of benefits offered, how they are used, and the payments associated with them, including per‑enrollee spending and out‑of‑pocket costs per use. Beginning in October 2030, the data would be accessible to researchers and other entities for evaluation and health services research, with a public use data file made available on CMS’s website. The bill also requires safeguards to protect individual privacy and clarifies that it does not alter existing authority to collect information under prior law.