When Does Medicare Open Enrollment Start 2024 In Usa. — the 2024 medicare open enrollment starts on october 15, and medicare enrollment ends on december 7. The annual enrollment period (aep) for these plans for 2024 runs from october 15 through december 7, 2023.
— medicare’s fall open enrollment, which runs oct. — the part d rules overshadow other medicare changes that can make a difference in 2025, including medicare advantage midyear coverage notices and stricter marketing rules,.