Important Dates and Deadlines
Timing is critical during Medicare Open Enrollment. Missing the December 7 deadline means waiting until the following year’s enrollment period to make most changes (with limited exceptions).
2026 Medicare Open Enrollment Timeline
Medicare Advantage Open Enrollment Period
In addition to the fall Open Enrollment Period, there is a Medicare Advantage Open Enrollment Period that runs from January 1 through March 31 each year. During this period, people enrolled in Medicare Advantage plans can:
- Switch to a different Medicare Advantage plan
- Switch to Original Medicare and join a Part D plan
This period does not allow beneficiaries to switch from Original Medicare to Medicare Advantage or to make Part D changes if they have Original Medicare.
Conclusion
The Medicare Open Enrollment Period from October 15 through December 7, 2026, provides an important opportunity for beneficiaries to review and potentially improve their Medicare coverage. Whether you’re generally satisfied with your current plan or actively seeking changes, taking time to understand your options is valuable.
Annual review matters because plans change from year to year, and so do individual healthcare needs. A plan that was the right fit previously may no longer be the most appropriate choice. By reviewing your Annual Notice of Change, comparing available plans, evaluating prescription drug coverage, and understanding the differences between Original Medicare and Medicare Advantage, you can make an informed decision about your healthcare coverage.
Free resources are available to help navigate these decisions, including State Health Insurance Assistance Programs, Medicare.gov tools, and the 1-800-MEDICARE helpline. Taking advantage of these resources can help ensure that your Medicare coverage aligns with your healthcare needs and financial circumstances for the year ahead.
Frequently Asked Questions
If you miss the December 7 deadline, you generally must wait until the next annual Open Enrollment Period to make changes to your Medicare coverage. However, some exceptions exist. Those enrolled in Medicare Advantage can use the Medicare Advantage Open Enrollment Period (January 1 – March 31) to switch MA plans or return to Original Medicare. Additionally, certain qualifying life events, such as moving to a new area, may trigger a Special Enrollment Period that allows changes outside the regular enrollment window.
No action is required if you want to keep your current Medicare coverage. Your existing plan will automatically renew for the next year. However, it’s still recommended that you review your plan’s Annual Notice of Change to understand any modifications to benefits, costs, or provider networks that will take effect in the new year.
Medicare Open Enrollment does not apply to Medigap (Medicare Supplement Insurance) policies. Medigap policies have their own enrollment rules. The Medigap Open Enrollment Period is a six-month window that begins the month you turn 65 and are enrolled in Medicare Part B. During this period, insurers cannot deny coverage or charge higher premiums based on health conditions. Outside this window, Medigap insurers in most states can use medical underwriting and may deny coverage.
No, switching from a standalone Part D plan to a Medicare Advantage plan that includes prescription drug coverage does not result in a late enrollment penalty. The key is maintaining continuous creditable prescription drug coverage. As long as you don’t have a gap of 63 continuous days or more without creditable coverage, you won’t incur a late enrollment penalty.
Medicare Advantage plans maintain provider directories that list in-network doctors, specialists, hospitals, and other healthcare facilities. You can typically access these directories on the plan’s website or request a printed copy. You can also contact the plan directly or ask your doctor’s office if they participate in a specific Medicare Advantage plan. The Medicare Plan Finder at Medicare.gov also allows you to search for plans that include specific providers.
State Health Insurance Assistance Programs (SHIP) provide free, unbiased Medicare counseling at no cost to beneficiaries. The Medicare.gov website and 1-800-MEDICARE helpline are also free resources. While licensed insurance agents and brokers can also help with Medicare decisions, they are compensated by insurance companies when you enroll in a plan through them. SHIP counselors do not sell insurance and have no financial stake in your decision.
