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Can You Switch Medicare Plans? When You Can Change, What It Costs, and What to Watch For?

Switching Medicare plans can be a smart move if you're not satisfied with your current coverage or if your health needs have changed. This article will help you understand when it's possible to change plans, what the costs might look like, and key things to watch for during the process.

Last updated: August 17, 2026

Where this answer comes from, and what it can't tell you

Written from the published Medicare rules and the source material preserved for this question. It explains the topic in general terms. It is not a reading of your own coverage documents, not a prediction of how Medicare or a plan will decide a case, and not advice about a particular plan. Your current notice, policy, Evidence of Coverage, or formulary controls when it differs from a general explanation. Resting Sycamore is not Medicare.gov and is not endorsed by any government agency.

When Can You Change Your Medicare Plan?

There are several times throughout the year when you can switch Medicare plans:

Initial Enrollment Period (IEP): This is your first chance to sign up for Medicare if you’re turning 65. The IEP lasts seven months, starting three months before the month of your birthday and ending three months after it.

Annual Election Period (AEP): Also known as Open Enrollment, this period runs from October 15 to December 7 each year. During AEP, you can switch between Medicare Advantage plans, change your Part D prescription drug plan, or move back to Original Medicare with a Medigap policy.

Special Enrollment Periods: If certain life changes happen—like moving to a new state, getting married, or losing other health coverage—you may qualify for a Special Enrollment Period (SEP). SEPs let you switch plans outside of the regular enrollment periods. Each situation has its own eligibility rules and timelines.

What Costs Can Arise When Changing Medicare Plans?

Switching Medicare plans might come with some costs, depending on what type of plan you’re moving from and to:

Premium Changes: If your new plan has a higher premium than your current one, you’ll start paying the difference right away. Conversely, if it’s lower, you could see savings.

Deductibles and Out-of-Pocket Costs: Some plans have deductibles or copays that can vary widely from one plan to another. It’s important to consider these costs when switching plans.

Penalties for Late Enrollment: If you didn’t sign up for Part B (Medical Insurance) or a prescription drug plan during your Initial Enrollment Period, and then decide to enroll later, you may face penalties. For Medicare Part D, the penalty is 1% of the national base beneficiary premium for each month you were eligible but not enrolled.

Which Coverage Details Matter Before Switching Medicare Plans?

Switching plans can be beneficial, but there are some things to keep an eye on:

Coverage Changes: Your new plan may cover different services or medications than your old one. Be sure to review what’s covered and any specific requirements or restrictions that apply.

Networks and Providers: If you’re switching from Original Medicare to a Medicare Advantage plan, or between two Advantage plans, the list of in-network providers might change. Check if your current doctors are still part of the network under your new plan.

Formulary Changes: Medicare Part D drug plans each have their own formularies, which are lists of covered drugs. Make sure that any medications you need are included and understand how they’re categorized (like preferred or non-preferred).

What Steps Are Involved in Switching Medicare Plans?

Switching Medicare plans involves several steps:

1. Review Your Current Plan: Understand the benefits and costs associated with your current plan. This will help you compare it with other options.

2. Explore New Options: Use resources like the Medicare Plan Finder on the official Medicare website to look at different Medicare Advantage or Part D plans available in your area. Consider factors like premiums, deductibles, copays, and coverage of specific services or medications.

3. Contact Your Current Insurance Provider: If you decide to switch, let your current provider know during the enrollment period. They may guide you through the process.

4. Enroll with a New Plan: You can enroll directly with a new plan’s insurance company or use an authorized Medicare broker. Make sure to confirm that your application is complete and accepted.

5. Monitor Your Coverage Changes: Once your coverage changes, keep track of any updates in your benefits or costs. Verify that all necessary medications are covered under the new formulary.

Switching Medicare plans can change provider access, drug coverage, prior authorization, premiums, and out-of-pocket costs. Compare the current plan with the proposed plan under the same expected care, then check the enrollment window and effective date in the governing notice.

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Peter Abilla, Licensed Medicare Insurance Sales Agent, NPN 22265186. Licensed in Alabama, California, Ohio, Pennsylvania, Texas, Utah, New Jersey, New York, North Carolina, Michigan, and Illinois. You reach the same person every call — no transfer queue.