Medicare plans do not stay the same year after year. Premiums change. Drug lists change. Doctor networks change. Yet many seniors keep the same plan without reviewing it. This can lead to higher costs or loss of coverage for important services.
The Medicare Annual Enrollment Period runs from October 15 to December 7 each year. This window gives you the chance to review your plan and make changes for the following year. This guide explains what you should check each year and gives you a simple checklist to follow.
What Is The Medicare Annual Enrollment Period
The Annual Enrollment Period, also called AEP, is the time when people already enrolled in Medicare can make changes to their coverage.
During this period, you can:
• 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, switch, or drop a Part D prescription drug plan
Any changes you make between October 15 and December 7 take effect on January 1 of the next year.
More than 65 million Americans rely on Medicare. Each year, plans adjust benefits and costs. That is why reviewing your coverage during AEP is important.
Why You Should Review Your Plan Every Year
Many seniors assume their plan will stay the same. In reality, insurance companies update plans each year. Even small changes can affect your healthcare costs.
You should review your plan because:
• Monthly premiums may increase
• Deductibles and copays may change
• Your doctor may leave the network
• Your medications may move to a different pricing tier
• Some services may no longer be covered
If you skip your yearly review, you may discover these changes only after the new year begins. At that point, you must wait until the next enrollment period to make changes.
Key Documents You Should Read Each Fall
Each September, Medicare plans send important documents. These papers explain what will change for the upcoming year.
Annual Notice Of Change
The Annual Notice of Change, also called ANOC, lists all updates to your current plan. This includes:
• Changes in premiums
• Changes in deductibles
• Updates to provider networks
• Changes to prescription drug coverage
Read this document carefully. It tells you if your plan will cost more or cover less.
Evidence Of Coverage
The Evidence of Coverage document explains how your plan works in detail. It outlines rules, benefits, and cost sharing.
You do not need to read every word each year. Focus on sections that discuss costs, prescription drugs, and provider networks.
Review Your Doctor And Hospital Network
If you use a Medicare Advantage plan, you must check your provider network each year. Plans can add or remove doctors and hospitals.
Take these steps:
• Confirm that your primary care doctor is still in network
• Check that your specialists remain covered
• Verify that your preferred hospital is still included
If your doctor leaves the network and you keep the same plan, you may pay higher out of pocket costs or need to switch providers.
Review Your Prescription Drug Coverage
Prescription drug coverage is one of the most important areas to review each year. Drug lists, also called formularies, change often.
Check Your Medication List
Create a current list of all medications you take. Include:
• Drug name
• Dosage
• Frequency
Then compare your list with your plan’s updated formulary.
Watch For Tier Changes
Medications are placed into tiers. Lower tiers usually cost less. If your medication moves to a higher tier, your copay may increase.
For example:
• A Tier 1 drug may cost 10 dollars per month
• The same drug in Tier 3 may cost 45 dollars per month
Even one tier change can increase yearly costs by hundreds of dollars.
Compare Monthly Premiums And Out Of Pocket Costs
Premiums are only one part of your healthcare costs. You should also review:
• Deductibles
• Copayments
• Coinsurance
• Maximum out of pocket limits
For instance, a plan with a lower premium may have higher copays for specialist visits. If you see specialists often, this plan may cost more overall.
Review your past year of medical usage. Estimate how often you visit doctors, fill prescriptions, or receive treatments. Use that information to compare plans.
Check Additional Benefits Offered By Medicare Advantage
Many Medicare Advantage plans offer extra benefits beyond Original Medicare. These may include:
• Dental coverage
• Vision exams and glasses
• Hearing aids
• Fitness programs
• Transportation services
However, these benefits can change each year. If you rely on a specific benefit, confirm that it remains available in the next plan year.
Use Medicare Plan Finder To Compare Options
The Medicare Plan Finder tool on the official Medicare website allows you to compare plans in your area.
You can:
• Enter your medications
• Choose your preferred pharmacies
• Compare estimated yearly costs
• Review star ratings for plan quality
This tool provides side by side comparisons, which helps you make an informed decision.
A Simple Annual Enrollment Checklist
Use this checklist each October to review your coverage step by step.
Step 1: Gather Your Current Plan Information
Collect:
• Your current plan name
• Your Annual Notice of Change
• A list of your medications
• A list of your doctors and specialists
Step 2: Review Changes In Your Current Plan
Read your Annual Notice of Change and look for:
• Premium increases
• Deductible changes
• Copay adjustments
• Network changes
Step 3: Compare Other Plans In Your Area
Even if you are satisfied with your current plan, compare at least two or three other options. Plans compete each year, and better options may become available.
Step 4: Confirm Pharmacy And Provider Participation
Make sure your:
• Preferred pharmacy remains in network
• Primary doctor is covered
• Specialists are included
Step 5: Make Changes Before December 7
If you decide to switch plans, complete your enrollment before the deadline. Changes after December 7 usually are not allowed unless you qualify for a Special Enrollment Period.
Common Mistakes Seniors Make During Annual Enrollment
Avoid these common errors:
• Ignoring the Annual Notice of Change
• Assuming prescriptions will remain covered
• Choosing a plan based only on premium cost
• Missing the December 7 deadline
• Forgetting to check provider networks
These mistakes can lead to unexpected costs and limited access to care in the new year.
Social Media Friendly Annual Enrollment Reminders
• Medicare Annual Enrollment runs October 15 through December 7 each year.
• Always review your plan’s Annual Notice of Change before renewing.
• Check that your doctors and prescriptions remain covered.
• Compare at least three plans before making a decision.
• Changes you make during enrollment take effect January 1.
Frequently Asked Questions
What happens if I do nothing during Annual Enrollment?
If you take no action, your current plan will usually renew automatically. However, it will renew with the new costs and coverage rules for the next year.
Can I change my Medicare plan after December 7?
In most cases, no. You must wait until the next Annual Enrollment Period unless you qualify for a Special Enrollment Period.
Do I need to review my plan if I am satisfied with it?
Yes. Plans change each year. A yearly review helps you avoid unexpected cost increases or coverage changes.
Is prescription drug coverage the same every year?
No. Drug lists and pricing tiers often change annually. Always review your medications during enrollment.
How long does it take for changes to become active?
Changes made during the Annual Enrollment Period take effect on January 1 of the following year.
Can I get help reviewing my Medicare options?
Yes. You can contact licensed Medicare advisors or your local State Health Insurance Assistance Program for free guidance.
Conclusion
The Medicare Annual Enrollment Period gives you one chance each year to review and adjust your coverage. From October 15 to December 7, you can compare plans, check costs, and confirm that your doctors and medications remain covered.
Use the checklist each fall. Read your Annual Notice of Change. Compare plans using Medicare tools. Make any changes before the deadline.
A short review each year helps you control healthcare costs and maintain access to the care you rely on.
