PIERRE, S.D.(WNAX)- Open enrollment for Medicare is now open and runs through December seventh.

Erik Gaikowski with AARP-South Dakota says people need to be cautious as they apply or make changes to their coverage

Gaikowski says fraud is a side effect of the sign up period.

Gaikowski says there are a number of good online resources.

More information on sign up is available at Medicare dot gov.