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

A lawful resident of the United States who is not a citizen qualifies for Medicare at age 65 if he or she has lived in the country for at least:

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

Why A is correct

Medicare eligibility at age 65 extends to U.S. citizens and to lawful permanent residents who have resided in the United States continuously for at least five years. The five-year continuous residency requirement applies to the individual seeking entitlement, meaning the person must have maintained U.S. residence for the full five-year period before enrollment. This rule is a specific eligibility fact in the exam objectives and is entirely separate from the work-credit requirements that determine whether Part A is premium-free. It is one of the most commonly tested items in the Medicare eligibility material.

Why the other options are wrong

  • B) One year of residence is far below the statutory five-year requirement for noncitizens to establish Medicare eligibility at age 65.
  • C) Ten years is not the standard. The law requires five years of continuous residence, not ten, so a lawful resident qualifies sooner than the ten-year figure suggests.
  • D) Three months of residence cannot satisfy the residency test. Medicare requires the full five years of continuous U.S. residence before entitlement is established.

Memory hook

Medicare for green-card holders: five years of American residency, then welcome aboard.

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