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Medicare · Daily

Understanding Medicare's Annual Open Enrollment Period

Each year, Medicare beneficiaries have a dedicated time to review and change their health and prescription drug plans. Knowing how this period works can help ensure your coverage continues to meet your evolving needs.

By Editorial Desk · The Health Almanac Editorial TeamPublished October 7, 20265 min read

Medicare can be complex, and one of the most important times of the year for beneficiaries is the Annual Open Enrollment Period, sometimes called the Annual Election Period (AEP). This is your yearly opportunity to make changes to your Medicare coverage for the upcoming year. Understanding this period is crucial for ensuring you have the right health and prescription drug plans to fit your individual circumstances.

What is Open Enrollment and When Does it Happen?

The Medicare Annual Open Enrollment Period runs from October 15 to December 7 each year. During these dates, you can make several key changes to your Medicare coverage that will take effect on January 1 of the following year. Think of it as a time for a yearly check-up on your insurance plans, just as you might have a yearly check-up with your doctor.

This period applies to everyone with Medicare, whether you have Original Medicare (Parts A and B) and a separate Part D prescription drug plan, or a Medicare Advantage (Part C) plan. Even if you are happy with your current plan, it’s wise to review your options, as plan benefits, costs, and formularies (lists of covered drugs) can change from year to year.

What Changes Can You Make?

During Open Enrollment, you have the flexibility to make several important decisions about your Medicare coverage:

  • Switch from Original Medicare to a Medicare Advantage Plan: If you currently have Original Medicare and want to explore the all-in-one benefits of a Medicare Advantage plan, this is your chance.
  • Switch from a Medicare Advantage Plan back to Original Medicare: If you find a Medicare Advantage plan no longer suits your needs, you can return to Original Medicare.
  • Change Medicare Advantage Plans: If you are already in a Medicare Advantage plan but wish to switch to a different one, you can do so.
  • Join a Medicare Part D Prescription Drug Plan: If you have Original Medicare and don't have prescription drug coverage, or if you're not satisfied with your current Part D plan, you can enroll in a new one.
  • Change Medicare Part D Prescription Drug Plans: If you are already enrolled in a Part D plan, you can switch to a different one.

It's important to note that if you have a Medigap (Medicare Supplement Insurance) policy, the Open Enrollment Period is not generally the time to make changes to it. Medigap policies have different enrollment rules.

Why Review Your Plans Annually?

Many people stick with their current plans out of habit or because they assume their plan won't change significantly. However, there are compelling reasons to review your options each year:

  1. Changes to Your Health: Your health needs can evolve. You might have new prescriptions, new doctors, or anticipate different medical services in the coming year. Your current plan might not cover your new needs as efficiently.
  2. Changes to Your Current Plan: Insurance companies often adjust their plan benefits, premiums, deductibles, co-pays, and formularies annually. A plan that was ideal last year might no longer be the best fit or could become more expensive.
  3. New Plans Available: New Medicare Advantage and Part D plans are introduced each year, and they might offer better benefits or lower costs for your specific situation.
  4. Changes to Your Budget: Your financial situation might change, making a plan with lower premiums or different cost-sharing structures more appealing.

Taking the time between October 15 and December 7 to compare your current plan with other available options can lead to significant savings and better coverage. Medicare.gov provides tools to help you compare plans side-by-side based on your specific health conditions, prescriptions, and preferred pharmacies. Engaging with this annual opportunity gives you agency over your healthcare decisions and can lead to peace of mind, knowing your coverage aligns with your life.

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  • updateOctober 7, 2026 — Daily evergreen · Medicare
Permanent URL: /archive/2026/10/07/medicare-daily-2026-10-07