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Medical ExpenseVerified · outline & fact-checked · Sep 2026Difficulty 1/5

To enroll in a Medicare Part D prescription drug plan, an individual must generally:

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Answer & full 3-part explanation (select an option above, or peek)

Why A is correct

Eligibility for Medicare Part D requires that the individual be entitled to Medicare Part A and/or be enrolled in Medicare Part B. Part D is voluntary drug coverage, but it sits on top of the Part A/Part B entitlement. Beneficiaries may enroll in a stand-alone Prescription Drug Plan (PDP) alongside Original Medicare, or obtain drug coverage embedded in a Medicare Advantage plan (MAPD). No Medigap policy, MA enrollment, or age condition is required to enroll in Part D. The Part A or Part B entitlement is the anchor: a person who has neither cannot hold a PDP, even though Part D enrollment itself is voluntary and separate from the medical coverage.

Why the other options are wrong

  • B) Medigap policies do not provide Part D drug coverage and are not a prerequisite for Part D enrollment.
  • C) Stand-alone PDPs serve beneficiaries in Original Medicare; enrollment in a Medicare Advantage plan is not required.
  • D) Part D is available to beneficiaries of any age who are entitled to Part A or enrolled in Part B.

Memory hook

Part D's entry ticket: a Part A or Part B entitlement. Show one card, get drug coverage.

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