When Did Medicare Part D Become Effective? 
January 1,2006 was the effective date for Medicare Part D. Coverage can be obtained by enrolling in a PDP -LRB- Prescription Drug Plan -RRB- or a Medicare Advantage Plan -LRB- MAPD -RRB- that covers medical/hospital/prescription drugs in one plan . I recommend contacting an independent agent who specializes in Medicare plans to help determine the best plan for your specific needs ... 