The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 established an outpatient voluntary prescription drug benefit under a new Medicare Part D. Drug coverage is provided through private prescription drug plans (PDPs), which offer only prescription drug coverage, or through Medicare Advantage (MA) prescription drug plans. This new book examines Medicare Part D and prescription drug issues; the effects of using generic drugs on Medicare's prescription drug spending; and Medicare Part D and its impact in the nursing home sector.