Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 2/5
Regarding Medicare Part D enrollment, which statement is correct?
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
Part D enrollment is voluntary, and beneficiaries enroll during an Initial Enrollment Period aligned with their Medicare eligibility, then may change plans during the Annual Election Period each fall. Special Enrollment Periods also apply for certain life events such as moving or losing other drug coverage. Failing to enroll when first eligible and without creditable coverage triggers a late-enrollment penalty. These enrollment windows are part of the Part D rules examined under AH-III.D.1g.
Why the other options are wrong
- B) Beyond the IEP, beneficiaries have the annual AEP and qualifying SEPs, so there is more than one opportunity.
- C) Part D is voluntary, not mandatory; beneficiaries may decline it, subject to a potential penalty later.
- D) Part D is purchased from private plans and through Medicare, not exclusively through state Medicaid agencies.
Memory hook
Part D: enroll at first eligibility, re-evaluate every fall, never once in a lifetime.