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Learn about the Medicare Advantage Open Enrollment Period with Medicare Helpline.

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Family expressing joy after making a change to Medicare coverage during the Medicare Advantage Open Enrollment Period.

Medicare Advantage Open Enrollment Period (OEP)

The Medicare Advantage Open Enrollment Period is an additional opportunity for consumers on a Medicare Advantage plan to make a single plan change. OEP runs between January 1 and March 31 every year.

What can I change during the Medicare Advantage Open Enrollment Period?

The Medicare Advantage Open Enrollment Period is exclusively for those already on a Medicare Advantage Plan. If you qualify to make a change during the Medicare Open Enrollment Period, you can choose a different Advantage Plan or choose to return to Original Medicare. If you decide to discontinue the Advantage Plan, you can also enroll in a separate Prescription Drug Plan (Part D).

For those enrolled in a Medicare Advantage Plan, only one switch is allowed during the Medicare Advantage Open Enrollment Period in the first quarter of the year.

During this enrollment period, Original Medicare policyholders cannot:

  • Switch from Original Medicare to a Medicare Advantage plan
  • Join a Medicare Prescription Drug Plan (Part D)
  • Switch Medicare Prescription Drug Plans
Couple getting help with Medicare coverage from Medicare Helpline.

Let The Medicare Helpline Help You Better Understand the Medicare Advantage Open Enrollment Period

Our licensed insurance agents can provide side-by-side coverage comparisons to make it easier for you to decide which Medicare plan is right for you. Don’t miss out on the benefits you deserve—get started by entering your zip below.

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Privacy Policy | Terms of Service

The Medicare Helpline represents Medicare Advantage (HMO, PPO, PFFS, and PDP) organizations that have a Medicare contract. By completing the contact form above or calling the number listed above, you will be directed to a licensed sales agent who can answer your questions and provide information about Medicare Advantage, Part D or Medicare supplement insurance plans. Availability of carriers and products are dependent on your resident zip code.

The purpose of this communication is the solicitation of insurance. Contact will be made by an insurance agent/producer or insurance company. Medicare Supplement insurance is available to those age 65 and older enrolled in Medicare Parts A and B and in some states to those under age 65 eligible for Medicare due to disability or End Stage Renal disease. Medicare Supplement insurance plans are not connected with or endorsed by the U.S. government or the federal Medicare program.


The Medicare Helpline is not affiliated with any governmental program or agency. Plans can only be changed during certain times of the year.

We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact or 1–800–MEDICARE [(TTY users should call 1-877-486-2048), 24 hours a day/7 days a week] to get information on all of your options.


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**The Medicare Advantage and Prescription Drug Plan Annual Enrollment Period (AEP) runs from October 15-December 7. During this time, Medicare recipients can evaluate their current coverage and enroll in new plans for the upcoming year.