To amend title XVIII of the Social Security Act to ensure fair assessment of pharmacy performance and quality under Medicare part D, and for other purposes.

HR 5393 requires Medicare Part D plans and Medicare Advantage plans with Part D to use standardized, evidence-based performance measures when determining financial incentives or fees for pharmacies. These measures must be tailored to pharmacy types (like retail, mail order, or specialty) and will be maintained in a public list by the government. The bill also mandates that plans provide pharmacies with clear, standardized payment information for each claim, including fees and discounts. Additionally, the government must conduct a study on current practices and report findings to Congress by 2025.