Medicare Part D Drug Costs and Formularies

A formulary is the complete list of drugs covered by a prescription drug plan. Part D formularies differ from plan to plan, as do the Medicare Part D copays and coinsurance costs members pay, even for the same prescription drug. Shop carefully for a plan formulary that covers the drugs you take at the lowest possible cost. For specific information on Medicare Part D costs, contact the plan you’re considering and ask for pricing information relevant to your situation.