"[1] Medicare's share of the nation's retail prescription drug spending has increased from 18% in 2006 to 30% in 2017.... [2] Prescription drugs covered under both Part B and Part D accounted for 19% of all Medicare spending in 2016.... [3] Ten drugs accounted for 17% of all Part D spending in 2016 ... [4] Prescription drugs accounted for $1 in every $5 that Medicare beneficiaries spent out-of-pocket on health care services in 2016, not including premiums."  MORE >>