Almost immediately after Annual Enrollment Period (AEP), Medicare Advantage (MA) enrollees have the option to reconsider their plan selection during Open Enrollment Period (OEP) from January 1 through March 31. For Medicare agents, OEP is more restrictive than AEP and should be addressed carefully. There are strict guidelines that dictate what you can and cannot do during this enrollment period. Here’s what you need to know to stay compliant.