November 2, 2026 - KFF Answers Medicare Questions:

I signed up for a stand-alone Part D plan early in the Medicare Open Enrollment period, but then I changed my mind. Can I switch to a different plan if the Medicare Open Enrollment period hasn’t ended?

You can submit a new application for a plan other than the one to which you initially applied during the Medicare Open Enrollment period. Keep in mind that the last plan application you submit before the Medicare Open Enrollment period ends on December 7 is the coverage that will take effect on January 1 of the following year.

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While every effort has been made to provide accurate and up-to-date information in these FAQs, people should contact Medicare, Social Security, State Health Insurance Assistance Programs (SHIP), or companies offering Medicare Advantage and Medicare Part D plans and Medigap policies directly for guidance on individual circumstances.

Source: KFF