It's that time of year again -- no, not the time for college basketball's March Madness, but the Open Enrollment Period (OEP) for people on Medicare.

Even though someone may have enrolled in a Medicare plan prior to January 1, those who are eligible can still make one change to their medical benefits for 2007. A "change" can mean they can add, drop or switch certain types of Medicare health plan coverage. Whatever change a beneficiary wants to make though, it must be consistent with whether they have Prescription Drug coverage as of January 1. Medicare beneficiaries are not permitted to change from one PDP to another PDP plan during this time.