Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 2/5
The Medicare Part B General Enrollment Period (GEP) runs each year:
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
Beneficiaries who miss their Initial Enrollment Period can sign up for Part B during the General Enrollment Period, which runs from January 1 through March 31 each year. Enrolling during the GEP may trigger the Part B late enrollment penalty if the person had no creditable group coverage during the delay. Coverage generally begins later in the year following GEP enrollment.
Why the other options are wrong
- B) October 15 through December 7 is the Medicare annual election period for Part C and Part D plan changes, not the Part B GEP.
- C) April through June is not a Medicare enrollment window under federal rules.
- D) July through September is not a Part B enrollment window.
Memory hook
GEP = January 1 through March 31, the catch-up window for Part B.