CMS requests information on PBM compensation and data collection

CMS issued a Request for Information seeking public comment on Pharmacy Benefit Manager compensation models and data collection practices. The agency is exploring how PBM rebates, fees, and formulary management affect drug costs for Medicare Part D and commercial plans. This is a preliminary step toward potential rulemaking that could change how PBMs operate and disclose their financial arrangements. The RFI does not impose new requirements but signals CMS's focus on pharmacy benefit transparency. The comment period will be announced in the Federal Register notice.