Medicare Open Enrollment Occurs Annually from October to December — Here's What You Need to Know

Closeup of Medicare open enrollment form and pen.

Medicare open enrollment begins yearly on October 15 and runs through December 7. It's the one enrollment period when all Medicare beneficiaries can make any desired or necessary changes to their coverage.

Open enrollment is the time of year when experts recommend you review your Medicare coverage to see if you need to make a change. It’s also the time when Medicare beneficiaries can find themselves under siege from various insurance companies seeking their business and scammers looking to steal vital personal information.