All Supplement plans must cover all or a portion of the following basic benefits:
The type of coverage provided by a Medicare Part D prescription drug plan varies from plan to plan. Each of these plans has its own unique list of prescription drugs that it covers, which is referred to as a formulary. Within the formulary, these drugs will often be divided into several different tiers, typically to indicate cost differences.
By law, Medicare Advantage (MA) plans must offer the same coverage as Original Medicare Parts A and B. Medicare Advantage plans must offer the following: