Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 2/5
An individual who misses the Part B Initial Enrollment Period and has no Special Enrollment Period can enroll during the General Enrollment Period, which runs:
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
The General Enrollment Period (GEP) for Medicare Part B runs each year from January 1 through March 31, with coverage beginning July 1 of that year. Enrolling during the GEP generally triggers the Part B late enrollment penalty because the beneficiary missed the IEP. The GEP dates are a specific figure in the Part B enrollment material.
Why the other options are wrong
- B) October 15-December 7 is the Annual Election Period for Medicare Advantage and Part D, not the Part B GEP.
- C) July 1-September 30 is not an enrollment period; the GEP ends March 31.
- D) The three months before the birthday month is part of the 7-month IEP, not the GEP.
Memory hook
Missed the IEP? The GEP is January 1 - March 31, and it bills you a penalty for being late.