This chartpack provides detailed information about Medicare beneficiaries’ enrollment in the many private drug plans available to them in 2007. The charts demonstrate that a relatively small number of companies which captured the most enrollees in 2006, the new benefit’s first year, continued to lead in market share in the current year. In addition, most enrollees in 2007 are in plans without gap coverage – with about 11.8 million people potentially at risk for reaching the benefit’s coverage gap and having to pay the full cost of their drugs.

 Chartpack (pdf)