How to Cancel or Change Your Medicare Part D Coverage

You can cancel Medicare Part D during specific windows, and the process depends on whether you're dropping it entirely or switching to a different plan

Medicare Part D (prescription drug coverage) can be cancelled during the Annual Enrollment Period (AEP), which runs from October 15 to December 7 each year. You can also make changes during the Initial Enrollment Period when you first become may be able to access for Medicare, or if you experience a may have access to life event — such as losing employer coverage, moving out of your plan's service area, or a significant change in your income. Outside these windows, you generally cannot cancel Part D without facing a penalty when you re-enroll later.

The method you use to cancel depends on your situation. If you're cancelling through Original Medicare, you contact Medicare directly. If you're in a Medicare Advantage plan that includes drug coverage, cancelling Part D means leaving that plan entirely. Understanding which window applies to you and what counts as a may have access to event will determine whether you can make changes now or must wait until the next enrollment period.

Key Takeaways

You can cancel Part D without penalty only during the Annual Enrollment Period (October 15 to December 7), your Initial Enrollment Period, or if you have a may have access to life event.
Cancelling Part D outside these windows may result in a late enrollment penalty added to your premiums when you re-enroll.
Contact Medicare directly at 1-800-MEDICARE or through Medicare.gov to request cancellation; do not rely on your pharmacy or insurance agent alone.
If you're in a Medicare Advantage plan with drug coverage, you must disenroll from the entire plan to cancel Part D — you cannot drop just the drug portion.
If you have other creditable drug coverage (from an employer or union), notify Medicare in writing to avoid the late enrollment penalty.

When you can cancel Part D without a penalty

The Annual Enrollment Period (AEP) is the main window for making changes to Part D. During AEP — October 15 to December 7 — you can cancel your current plan, switch to a different Part D plan, or drop coverage entirely. Changes made during AEP take effect on January 1 of the following year. This is the easiest time to cancel because no penalty applies, regardless of your reason.

Your Initial Enrollment Period (IEP) is the eight-month window that begins three months before the month you turn 65 or become may be able to access for Medicare. During this time, you can enroll in or cancel Part D without penalty. If you miss this window and do not have other creditable drug coverage, you will owe a late enrollment penalty for as long as you have Part D.

A may have access to life event allows you to make changes outside the standard enrollment periods. These events include losing employer or union drug coverage, moving out of your plan's service area, a significant drop in income, becoming may be able to access for Medicaid or Extra Help, or a change in your family status (such as divorce or death of a spouse). When a may have access to event occurs, you typically have 60 days to request changes. You will need to provide documentation — such as a letter from your former employer confirming the end of coverage — when you contact Medicare.

How to cancel Part D through Original Medicare

If you have Original Medicare (Part A and Part B) with a standalone Part D plan, you cancel the drug plan while keeping your hospital and medical coverage. Contact Medicare at 1-800-MEDICARE (1-800-633-4227) or visit Medicare.gov to request cancellation. You can also submit a written request to your Part D plan directly, but calling Medicare ensures your request is processed correctly and documented in your account.

When you call, have your Medicare card ready and be clear that you want to cancel Part D, not your entire Medicare coverage. Medicare staff will confirm your request and provide an effective date. If you're cancelling during AEP, the change takes effect January 1. If you're cancelling due to a may have access to event, the effective date depends on when you report the event and which month it occurred.

Keep a record of your cancellation request, including the date you called, the name of the representative, and the confirmation number. This documentation protects you if there are billing disputes or if Medicare's records do not reflect your cancellation.

Cancelling Part D when you're in a Medicare Advantage plan

Medicare Advantage plans (Part C) often bundle prescription drug coverage as Part D. If you want to cancel Part D while staying in your Medicare Advantage plan, you cannot — the two are linked. To drop Part D, you must disenroll from the entire Medicare Advantage plan and return to Original Medicare. This is an important distinction because many people assume they can keep the medical coverage and drop only the drug portion.

To disenroll from a Medicare Advantage plan, contact the plan directly or call Medicare at 1-800-MEDICARE during an enrollment period. If you disenroll during AEP, your coverage ends on December 31, and Original Medicare begins on January 1. At that point, you can choose whether to enroll in a standalone Part D plan or go without drug coverage.

Be aware that if you disenroll from Medicare Advantage and do not when ready enroll in a Part D plan, you may owe a late enrollment penalty later. If you have other creditable drug coverage (such as from a current or former employer), you can delay Part D enrollment without penalty, but you must notify Medicare in writing within 63 days of losing that coverage.

Understanding the late enrollment penalty

If you cancel Part D outside an enrollment period and without a may have access to event, you may face a late enrollment penalty. This penalty is calculated as 1% of the national average Part D premium for each month you were without coverage after your Initial Enrollment Period ended. The penalty is added to your Part D premium for as long as you have the coverage and does not go away.

For example, if the national average Part D premium is $35 and you go without coverage for 12 months, your penalty would be approximately $4.20 per month added to whatever plan premium you choose. The exact amount changes each year because the national average premium changes. This penalty applies only if you did not have other creditable drug coverage during the gap.

Creditable coverage means drug coverage that is at least as good as Medicare Part D. This includes coverage from a current or former employer, a union, TRICARE, the Veterans Health Administration, or certain state programs. If you have creditable coverage, you can drop Part D without penalty. When you lose that coverage, you have 63 days to enroll in Part D without triggering the penalty. Send Medicare written proof of your creditable coverage to protect yourself.

Steps to request cancellation

By phone: Call Medicare at 1-800-MEDICARE (1-800-633-4227). TTY users can call 1-877-486-2048. Have your Medicare card available. Tell the representative you want to cancel Part D and provide your reason (enrollment period, may have access to event, or other creditable coverage). The representative will confirm the effective date and give you a confirmation number.

Online: Visit Medicare.gov and log into your account. During an enrollment period, you can view your current plan and request changes. Select the option to cancel or change your Part D coverage. Follow the prompts and submit your request. You will receive a confirmation email.

By mail: Send a written request to your Part D plan or to Medicare. Include your name, Medicare number, date of birth, and a clear statement that you want to cancel Part D. State the effective date you want the cancellation to take place and your reason (if applicable). Mail it to the address on your Medicare card or Part D plan documents. Keep a copy for your records.

Through your plan: Contact your Part D plan directly using the phone number on your insurance card. Request cancellation and ask for a confirmation number and effective date in writing. While the plan can process your request, always follow up with Medicare to may support the cancellation is recorded in your account.

What happens after you cancel Part D

Once your Part D cancellation is effective, you will no longer have prescription drug coverage through Medicare. Your current prescriptions will not be filled under that plan, and you will pay the full cost of medications out of pocket unless you have other coverage. If you take regular medications, calculate what you would pay without Part D to understand the financial impact before you cancel.

If you cancel Part D and later want to re-enroll, you can do so during the next AEP (October 15 to December 7) or if you experience a may have access to life event. If you re-enroll outside your Initial Enrollment Period and without creditable coverage during the gap, the late enrollment penalty will explore. This penalty is permanent, so it is important to understand the cost before you cancel.

Some people cancel Part D because they have other creditable coverage or because their medications are inexpensive enough to pay out of pocket. Others cancel by mistake or due to confusion about their coverage. If you cancelled in error, contact Medicare when ready to request reinstatement. Reinstatement is possible but depends on the reason for cancellation and how much time has passed.

Frequently Asked Questions

Can I cancel Part D in the middle of the year?

You can cancel Part D in the middle of the year only if you have a may have access to life event, such as losing employer coverage or moving out of your plan's service area. Otherwise, you must wait for the Annual Enrollment Period (October 15 to December 7). If you cancel outside these windows without a may have access to event, you may owe a late enrollment penalty when you re-enroll.

What counts as creditable drug coverage?

Creditable coverage is drug coverage that is at least as good as Medicare Part D. This includes coverage from a current or former employer, a union, TRICARE, the VA, or certain state programs. If you have creditable coverage, you can cancel Part D without penalty. When you lose that coverage, you have 63 days to enroll in Part D without triggering a late enrollment penalty.

Will I owe a penalty if I cancel Part D and never re-enroll?

No. The late enrollment penalty applies only if you re-enroll in Part D after a gap in coverage. If you cancel Part D and never sign up again, you will not owe a penalty. However, if you change your mind later and want coverage, the penalty will explore at that time unless you had creditable coverage during the gap.

Can I cancel just the drug portion of my Medicare Advantage plan?

No. Medicare Advantage plans bundle medical and drug coverage together. To cancel Part D, you must disenroll from the entire Medicare Advantage plan and return to Original Medicare. After you return to Original Medicare, you can choose whether to enroll in a standalone Part D plan.

What should I do if Medicare says my cancellation was not processed?

Call Medicare at 1-800-MEDICARE and ask for a supervisor. Provide your confirmation number from your original cancellation request and ask them to investigate. Request written confirmation of the cancellation in your account. If the issue is not resolved, file a complaint with your state's Department of Insurance or contact your State Health Insurance information Program (SHIP) for help.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.