Open enrollment for Medicare Part D (Prescription Drug) will run from October 15th to December 7th each year. Medicare prescription drug plan may change their co-pays, deductibles, possibly their formulary, and change their premiums, which could affect coverage for 2015. Some current plans could no longer be available in 2015, therefore it is recommended you do a thorough check up of a Medicare prescription drug plan annually. This open enrollment period will allow individuals who are currently enrolled in the Medicare Part D (prescription drug) plan to have complete check ups, this personal check up will ensure you the absolute best plan that is available is selected. Trained medical counselors will be available to assist during the open enrollment period.