INDIANA — The Medicare Advantage Open Enrollment Period (MA OEP) runs January 1 through March 31 of each year. During the Medicare Advantage Open Enrollment Period:• You can switch to a different Medicare Advantage Plan.• You can drop your Medicare Advantage Plan.• You can return to Original Medicare.• You can add a standalone Part D Plan, but only if you dropped your Medicare Advantage Plan and returned to Original Medicare.To change your drug coverage during thi