Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 1/5
To enroll in a Medicare Part D prescription drug plan, an individual must:
Select an option to reveal the answer and the full 3-part explanation — free, no signup.
Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
Part D eligibility requires the person to be entitled to Medicare Part A and/or enrolled in Medicare Part B. Beneficiaries with Original Medicare can join a stand-alone PDP, and Medicare Advantage enrollees receive drug coverage through their MA-PD plan. Being 65 or older or disabled is not an additional condition beyond Medicare entitlement.
Why the other options are wrong
- B) Part D serves people entitled to Medicare, who are generally 65 or older or disabled; being under 65 is not a requirement.
- C) Beneficiaries with other drug coverage may still join Part D, though they should consider whether that coverage is creditable.
- D) Medigap carriers do not sell Part D plans; PDPs and MA-PD plans are sold by Medicare-contracted insurers.
Memory hook
Part D needs Part A and/or Part B — Medicare entitlement first, drugs second.