.png){kind=small}
Medicare Open Enrollment 2027: 7 Changes to Check Before December 7
_11zon.jpg "Medicare Open Enrollment 2027: 5 Costly Mistakes to Avoid Before Decembe")
Medicare Open Enrollment 2027: Why Your Current Plan Deserves a Second Look?
Medicare Open Enrollment for 2027 begins October 15, 2026, and ends December 7, 2026. For millions of Americans, this is the key annual opportunity to review health insurance coverage, compare prescription drug plans, and decide whether their current Medicare arrangement still fits their medical needs and budget.
But here is the detail many beneficiaries could overlook: a plan that worked well in 2026 may not be the best choice for 2027. Monthly premiums, prescription drug coverage, provider networks, deductibles, and out-of-pocket expenses can differ from one plan year to the next.
The latest outlook from the Centers for Medicare & Medicaid Services (CMS) points to lower projected average Medicare Advantage premiums in 2027, while average premiums for stand-alone Medicare Part D prescription drug plans are projected to increase slightly. Those national averages are useful starting points, but they do not tell every beneficiary what their own coverage will cost.
The most important step is to compare the actual plans available in your ZIP code before the deadline.
1. When Is Medicare Open Enrollment for 2027?
The annual Medicare Open Enrollment Period runs from October 15 through December 7, 2026.
During this period, people who already have Medicare can make certain changes to their health and prescription drug coverage for the 2027 plan year.
| Important date | What it means |
|---|---|
| October 1, 2026 | Beneficiaries can begin reviewing available 2027 plan options. |
| October 15, 2026 | Annual Medicare Open Enrollment begins. |
| December 7, 2026 | Deadline for eligible changes during the annual enrollment period. |
| January 1, 2027 | Most coverage changes made during this period take effect. |
If you want to change plans, make sure the plan receives your enrollment request by the applicable deadline. Do not wait until the final evening to compare coverage or resolve questions about your application.
You can review the official rules on the Medicare.gov Open Enrollment page.
What can you change during Medicare Open Enrollment?
Depending on your current coverage and circumstances, you may be able to:
Switch from Original Medicare to a Medicare Advantage plan.
Switch from Medicare Advantage back to Original Medicare.
Change from one Medicare Advantage plan to another.
Join, drop, or change a Medicare prescription drug plan.
Review whether your current health and drug coverage will continue to meet your needs in 2027.
Not every option applies to every beneficiary. Your existing coverage, eligibility, and the rules governing the plans in your area determine which changes you can make.
Important: Medicare Open Enrollment is not the same as the Initial Enrollment Period for people first becoming eligible for Medicare. If you are approaching age 65 or becoming eligible because of a disability, you should check the enrollment rules that apply to your particular situation.
2. Medicare Advantage Premiums Are Projected to Decline in 2027
One of the major developments for the 2027 plan year is CMS's projection that average Medicare Advantage premiums will decrease.
According to CMS's September 28, 2026 announcement, the weighted average monthly premium across Medicare Advantage plans is projected to fall from $14.37 in 2026 to $12.00 in 2027.
That represents a projected decline of approximately 16.5%.
At first glance, this sounds like good news for retirees and other Medicare beneficiaries. However, there is an important distinction between a national average and the price of an individual plan.
Your own premium may be higher or lower than the national figure. Your location, selected plan, benefits, and coverage structure all matter.
Does a lower average premium mean you should keep your current plan?
Not necessarily.
A plan with a low monthly premium may still involve higher costs for particular medical services, specialist visits, hospital stays, or prescription drugs. Another plan with a higher premium could provide better coverage for the treatments and providers you use regularly.
Before making a decision, compare:
The monthly premium for 2027.
The annual deductible, if applicable.
Copayments and coinsurance for common services.
The maximum out-of-pocket limit for covered medical services.
Whether your doctors and preferred hospitals remain in the network.
Prescription drug coverage and pharmacy access.
Any additional benefits that matter to you.
A premium comparison alone cannot show which plan offers the best overall value.
CMS also projects that approximately 97% of Medicare beneficiaries will have access to at least 10 Medicare Advantage plan options in 2027. However, the available plans and their benefits vary by location, so beneficiaries should compare options using their own ZIP code.
For the official national outlook, see the CMS 2027 Medicare Advantage and Part D announcement.
How Could Interest Rates Affect Your Retirement Budget in 2027?
Medicare premiums are only one part of retirement expenses. Interest rates can also influence savings returns, borrowing costs, and the monthly budgets of retirees. Understanding the broader economic outlook may help you plan for other expenses alongside your health coverage.
For more context, read our guide:
Will the Fed Raise Interest Rates in 2026?
to explore how Federal Reserve decisions could affect borrowing costs, savings, and the financial outlook for American households.
3. Medicare Part D Drug Costs: What Should You Check?
Prescription drug coverage deserves special attention during Open Enrollment, particularly if you take several medications or use expensive brand-name prescriptions.
CMS projects that the average monthly premium for stand-alone Medicare Part D prescription drug plans will rise from $35.09 in 2026 to $36.00 in 2027.
Although the projected national increase is less than one dollar per month, individual plans can have different premiums, formularies, deductibles, and cost-sharing requirements.
The amount you pay depends on more than the advertised monthly premium.
Check whether your medications remain covered
A formulary is the list of prescription drugs covered by a plan. Plans can differ in the medications they cover, the conditions for coverage, and the amount members pay.
Before renewing your coverage, review every prescription you currently use.
Ask these questions:
Is each medication covered in 2027?
Has the drug moved to a different coverage tier?
Will a new deductible apply?
How much will you pay at your preferred pharmacy?
Does the plan require prior authorization or step therapy for any medication?
Is a lower-cost generic alternative available and appropriate for your treatment?
Do not assume your prescriptions will receive the same coverage next year simply because they were covered in 2026.
If you take several medications, a plan with a slightly higher monthly premium could potentially reduce your total annual spending. The reverse can also be true.
Compare the total annual cost, not just the premium
Consider a hypothetical example.
| Expense | Plan A | Plan B |
|---|---|---|
| Monthly premium | $15 | $25 |
| Annual premiums | $180 | $300 |
| Estimated annual prescription costs | $720 | $480 |
| Combined estimated annual cost | $900 | $780 |
In this example, Plan B costs $120 more in annual premiums but saves $240 in estimated prescription expenses. Its combined estimated annual cost is $120 lower.
These figures are illustrative, not actual quotations for a Medicare plan. Your costs will depend on the medications you use, coverage rules, pharmacy, and other plan details.
Use the official Medicare Plan Finder to compare available plans and estimated drug costs in your area.
4. Medicare Advantage vs. Original Medicare: Which Should You Compare?
One of the biggest decisions during Open Enrollment is whether to remain with your current type of coverage or switch to another option.
Original Medicare generally includes Part A, which covers eligible inpatient hospital care, and Part B, which covers eligible medical services and outpatient care.
Medicare Advantage, also known as Part C, is offered by private companies approved by Medicare. These plans provide Medicare-covered Part A and Part B benefits and may include prescription drug coverage and additional benefits.
Neither option is automatically the best choice for everyone.
Original Medicare: What to consider
Original Medicare allows beneficiaries to use any doctor or hospital that takes Medicare, subject to applicable coverage and payment rules. In most cases, referrals are not required to see specialists.
However, Original Medicare does not generally include most routine dental, vision, or hearing services. Beneficiaries may also consider a separate Part D prescription drug plan and, if eligible and appropriate, Medicare Supplement Insurance (Medigap).
Medigap helps pay certain out-of-pocket costs associated with Original Medicare. Its availability, premiums, and enrollment protections depend on the beneficiary's circumstances and applicable rules.
If you are considering switching from Medicare Advantage to Original Medicare, check whether you can obtain the Medigap policy you want. In many situations, federal Medigap protections are strongest during specific enrollment windows, while other applications may involve medical underwriting unless guaranteed-issue rights or state rules apply.
Do not assume that you can switch back later and automatically obtain any Medigap policy at the same price.
Medicare Advantage: What to consider
Medicare Advantage plans often use provider networks. Depending on the plan, you may need to use network doctors, obtain referrals, or meet other requirements for certain services.
Some plans include prescription drug coverage and additional benefits such as dental, vision, hearing, or fitness-related services. The details vary by plan and location.
Before enrolling, verify:
Whether your primary care doctor is in the network.
Whether your specialists and preferred hospitals are covered.
Whether you need referrals for specialist visits.
How emergency and out-of-network care are handled.
Which prescription drugs are covered.
The plan's annual out-of-pocket maximum for covered Part A and Part B services.
Do not choose a Medicare Advantage plan solely because it advertises a low premium or additional benefits. Confirm that the coverage works for your actual medical needs.
For a government comparison, visit Medicare.gov's guide to Original Medicare and Medicare Advantage.
5. Seven Things to Check Before Choosing a 2027 Plan
The most effective way to prepare for Open Enrollment is to review the details that can affect your health care and budget throughout the year.
1. Read your Annual Notice of Change
If you have Medicare Advantage or a Medicare drug plan, review the Annual Notice of Change (ANOC) sent by your plan.
This notice explains important changes to your existing coverage for the following year, including premiums, benefits, cost-sharing, and other plan terms.
Compare the notice with your current expenses. If a service you use frequently will cost more, or a medication will have different coverage, investigate your alternatives before renewing.
2. Check your doctors and hospitals
A familiar doctor is not necessarily included in every plan's network for the next year.
Confirm the network status of your primary care physician, specialists, preferred hospital, and any other important providers. If you travel frequently or spend part of the year in another state, consider how the plan handles non-emergency care away from home.
3. Review every prescription
Make a list of your medications, including their names, strengths, and usual quantities.
Compare the plan's formulary, pharmacy options, cost-sharing, and any restrictions. If a medication is expensive, even a small difference in coverage can have a meaningful effect on your annual budget.
Discuss possible medication alternatives with your clinician rather than changing or stopping treatment on your own.
4. Calculate your likely annual spending
Look beyond the monthly premium.
Estimate what you could spend on routine appointments, specialist care, tests, prescriptions, and any recurring treatments. Review the plan's cost-sharing for the services you are most likely to use.
An annual budget comparison gives you a more realistic picture than looking at premiums alone.
5. Compare the out-of-pocket maximum
Medicare Advantage plans have an annual limit on out-of-pocket costs for covered Part A and Part B services. Original Medicare does not have a general annual out-of-pocket maximum for those services unless you have other coverage that provides one.
Check the details of each plan and understand what counts toward its limit. Prescription drug expenses are governed by separate Part D rules, so do not assume all medical and drug costs are combined into one limit.
6. Examine additional benefits carefully
Dental, vision, hearing, transportation, and other supplemental benefits can be valuable, but their scope differs.
A plan may advertise dental coverage while limiting the covered procedures, annual allowance, provider choices, or reimbursement rules. Review the evidence of coverage and benefit details instead of relying on promotional headlines.
7. Check the plan's quality information
Medicare publishes star ratings that can help beneficiaries compare aspects of plan quality and performance.
Ratings are useful, but they should not replace a review of your own costs, doctors, medicines, and coverage needs. A highly rated plan may not be the best fit if it excludes a provider you rely on or covers your medications less favorably.
You can review the official plan information through Medicare.gov.
6. How to Compare Medicare Plans Step by Step
You do not need to compare every available plan in the country. Start with the plans offered where you live and narrow the choices based on your needs.
Step 1: Gather your information.
Have your Medicare card, current plan details, medication list, preferred pharmacy, and doctors' names available. A list of your usual medical services can also help.
Step 2: Read your current plan's annual notice.
Identify any changes to premiums, deductibles, drug coverage, provider networks, or benefits. Write down the questions you need to resolve.
Step 3: Use the official Plan Finder.
Visit Medicare.gov Plan Finder, select 2027 coverage, and enter your ZIP code. Add your medications and pharmacies when prompted to improve your drug-cost estimates.
Step 4: Compare total costs.
Review premiums, deductibles, copayments, coinsurance, drug costs, and the applicable out-of-pocket limits. Use the same assumptions when comparing different plans.
Step 5: Verify the details directly.
Contact the plan if you need confirmation about provider networks, covered services, drug restrictions, or costs. Ask for the relevant documents and keep notes about the answers.
Step 6: Enroll before the deadline.
If you decide to change coverage, complete the enrollment process in time for the plan to receive your request by December 7, 2026. Keep confirmation details for your records.
Step 7: Check your new coverage documents.
After enrolling, review the confirmation and plan materials. If anything appears incorrect, contact the plan or Medicare promptly.
7. What Happens If You Miss the December 7 Deadline?
Missing the annual Open Enrollment deadline can limit your choices, but it does not mean every beneficiary must wait until the next October to make any change.
People enrolled in Medicare Advantage generally have another opportunity during the Medicare Advantage Open Enrollment Period, which runs from January 1 through March 31 each year.
During that period, eligible beneficiaries enrolled in Medicare Advantage can generally switch to another Medicare Advantage plan or return to Original Medicare. If they return to Original Medicare, they may also be able to enroll in a separate Part D drug plan.
This January–March period does not provide the same options to everyone. For example, it is not a general opportunity for people with Original Medicare to switch to any Medicare Advantage plan they want.
Certain life events or circumstances can also qualify someone for a Special Enrollment Period. Eligibility and available changes depend on the situation.
If you are unsure which rules apply, contact Medicare or a qualified enrollment counselor rather than assuming you must wait until the next annual enrollment window.
8. Where Can You Get Free Medicare Enrollment Help?
Choosing health coverage can be complicated, especially if you have multiple prescriptions, ongoing medical needs, or questions about Medigap.
Several official resources can help.
Medicare.gov: Compare plan options, review enrollment rules, and access official information at Medicare.gov.
Medicare Plan Finder: Compare 2027 health and drug plans by ZIP code using the official Plan Finder.
1-800-MEDICARE: Call 1-800-633-4227 for Medicare information and assistance.
State Health Insurance Assistance Program (SHIP): SHIP offers free, personalized Medicare counseling. Find your state's program through SHIP's official website.
Be cautious of unsolicited calls, messages, or advertisements promising special Medicare payments, guaranteed savings, or benefits that sound too good to be true. Never share personal or financial information with someone whose identity you have not verified.
9. Frequently Asked Questions About Medicare Open Enrollment 2027
When does Medicare Open Enrollment start in 2026?
The annual enrollment period begins October 15, 2026, and ends December 7, 2026. Eligible changes generally take effect January 1, 2027.
Can I change my Medicare Advantage plan for 2027?
If you are eligible, you can generally switch Medicare Advantage plans during the annual Open Enrollment Period. Compare provider networks, prescriptions, premiums, and out-of-pocket costs before making a change.
Will Medicare Advantage premiums be lower in 2027?
CMS projects that the weighted average monthly Medicare Advantage premium will decline from $14.37 in 2026 to $12.00 in 2027. This is a national projection, not a guarantee that every plan's premium will decrease.
Are Medicare Part D premiums increasing in 2027?
CMS projects that the average monthly premium for stand-alone Part D prescription drug plans will rise from $35.09 in 2026 to $36.00 in 2027. Individual plan premiums and total drug expenses can differ substantially from the average.
Do I need to change plans every year?
No. You can keep your existing plan if it remains available and meets your needs. However, reviewing the annual notice and comparing your options can help you identify changes that may affect your costs or coverage.
Does Medicare Open Enrollment apply to people turning 65?
The annual period is primarily for people who already have Medicare and want to make eligible changes. People becoming eligible for Medicare for the first time should review their Initial Enrollment Period and any other rules that apply to them.
What if my doctor is no longer in my plan's network?
Check the network status for the 2027 plan year and ask the insurer about your options. You may wish to compare other plans that include your provider, but verify all details before switching.
Can I compare Medicare plans online for free?
Yes. Medicare.gov provides an official Plan Finder that lets you compare available plans using your ZIP code and, where applicable, your medications and pharmacies.
Final Thoughts: Do Not Let December 7 Arrive Before You Compare
Medicare Open Enrollment 2027 is an opportunity to make an informed decision about your health coverage and household budget.
CMS's national projections suggest lower average Medicare Advantage premiums and a modest increase in average stand-alone Part D premiums. But these figures are only a starting point. The best plan for you depends on the coverage available in your area, your prescriptions, your doctors, your health needs, and the total costs you could face throughout the year.
Start by reviewing your Annual Notice of Change, make a list of your medications and providers, and compare the available 2027 plans through Medicare.gov.
Most importantly, complete any changes you decide to make before December 7, 2026.
A few hours spent comparing coverage now could help you avoid unexpected expenses and choose a plan that better fits your needs in 2027.