That's a good question . I believe it's any month the whole iep period . But whats very important is part A and b must be the same date for trial right 1. In 12 months can try a mapd and if you don't like can gi sign up for any med sup . Trial right 2 can be any time you get a med sup( ex working 68 yr old ) . You can always try a mapd at any time and have 12 months to go back to that plan . I've probably moved 40 med sups to mapd ( every single one they called me to do ) . Not one time has anyone requested to move back to a med sup ever .Caveat, not an agent
"when you were first eligible for Medicare Part A at 65,"
Does that mean the whole IEP, or just the month one actually turns 65?