This brief provides an overview of the Medicare Modernization Act of 2003 and Medicare Part D for BPAO/PABSS staff and Medicare beneficiaries who are working or interested in working. Included in the brief are detailed descriptions of Medicare Part Ds extra help, the formulary and access rules, the interaction of Medicare Part D with SSA work incentives and factors that should be considered in picking a Prescription Drug Plan. The brief also provides BPAO/PABSS with a framework of their roles and responsibilities in assisting individuals in understanding and navigating the Medicare Part D benefit.