In the 2006 Physician Fee Schedule, the Centers for Medicare & Medicaid Services (CMS) interpreted the Medicare Modernization Act definition of average sales price to include “prompt pay” in its calculation. CMS maintains that since the statute includes the words “prompt pay discount,” it must include the method when calculating average sales price, which artificially lowers Part B reimbursement for physicians and could adversely affect access to care for patients with cancer. ■