Medicaid VBPs for Patients Act or the MVP Act This bill provides statutory authority for regulations that allow for the use of varying best price points under value-based purchasing arrangements for purposes of the Medicaid Drug Rebate Program. ( Value-based purchasing arrangements refer to arrangements in which the price of a drug is linked to clinical outcomes; such arrangements are particularly used for new high-cost treatments, such as gene therapies.) The Government Accountability Office must study the impact of value-based purchasing arrangements on federal health care programs, including with respect to the bill's changes.