Before enrolling in a Medicare Advantage Prescription Drug plan, it’s a good idea to check that the formulary includes your prescription medications; the formulary is a list of prescription medications covered by the plan. Formularies vary by plan, and not every medication is covered by every Medicare plan, so it’s important to double check. Keep in mind that formularies are subject to change. The formulary may change at any time. You will receive notice from your plan when necessary. 

Medicare Part D is optional prescription drug coverage. If you have Original Medicare, you can get this coverage through a Medicare Prescription Drug Plan, offered through private Medicare-approved insurance companies. These plans offer stand-alone prescription drug coverage that work alongside Original Medicare, Part A and Part B. A Medicare Advantage Prescription Drug plan also provides the Medicare Part D benefit, covering all Medicare benefits under a single plan.
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