In December 2003, Congress passed the Medicare Modernization Act and created Medicare Part D. The Medicare Part D benefit took effect January 2006 and was created to help pay for prescription drugs for people who receive Medicare benefits.
Eligibility
In order to be eligible for Medicare Part D, you must be eligible for Medicare Part A and/or Medicare Part B. If you currently get your health care covered by Medicare, including those who have some Medicare costs paid through Medicaid, this prescription drug coverage will be a new benefit. If you currently have both Medicare and Medicaid, as of January 1, 2006, you will begin receiving your prescription drugs through Medicare only.