Medicare General Enrollment Period 2025 Enrollment Period. Beginning january 1st, 2023, medicare’s general enrollment period (gep) rules changed, helping americans who had not enrolled in medicare when turning 65. Instead, you’ll use medicare’s general enrollment period, which runs from january 1 to march 31.

These include the medicare general enrollment period, open enrollment period, and special enrollment period, among others. Medicare’s open enrollment period, known as the “medicare advantage and prescription drug plan annual election period,” “annual enrollment period” or “aep,” takes place each year.