What is included in the formulary of a Medicare Part D plan?

The formulary of a Medicare Part D plan is specifically oriented around the medications that are covered under that plan. It is essentially a list that identifies the prescription drugs that beneficiaries can obtain at a reduced cost, in accordance with the plan’s terms. This list helps beneficiaries understand which medications are available to them, including details about the tiers of drugs, which often dictate the cost-sharing structure.

In contrast, the other options focus on different aspects of Medicare benefits that do not pertain specifically to prescription coverage. Preventive services covered by Medicare, healthcare providers in-network, and covered hospital services are components of Medicare plans but are related to broader health services and not specifically about the pharmaceuticals included in Part D plans. Thus, selecting the list of prescription drugs covered by the plan accurately captures the essence of what a formulary entails within the context of Medicare Part D.