What Is the Medicare Annual Enrollment Period (AEP)?
What Is the Medicare Annual Enrollment Period (AEP)?

If you're enrolled in Medicare, one of the most important dates on your calendar should be the Medicare Annual Enrollment Period (AEP). Every year, millions of Medicare beneficiaries have an opportunity to review their coverage, compare plans, and make changes that could potentially save them money or improve their benefits.
Unfortunately, many people either misunderstand AEP or ignore it altogether. As a result, they may end up paying more than necessary, losing access to preferred providers, or discovering that their prescriptions are no longer covered the way they expected.
As a licensed Medicare broker serving Jacksonville and communities throughout Florida, I help Medicare beneficiaries navigate Annual Enrollment every year. In this guide, we'll explain exactly what AEP is, why it matters, and how to make the most of this important Medicare enrollment window.
What Is the Medicare Annual Enrollment Period?
The Medicare Annual Enrollment Period, often called AEP or Open Enrollment, is the time each year when Medicare beneficiaries can review and change their Medicare coverage.
AEP Dates
The Medicare Annual Enrollment Period runs from:
October 15 through December 7
Any changes made during this period generally become effective on:
January 1 of the following year
This enrollment period provides beneficiaries with an opportunity to evaluate whether their current plan still meets their needs.
Why Is AEP So Important?
Many people assume that once they enroll in Medicare, they never need to review their coverage again.
That assumption can be costly.
Medicare plans change every year.
These changes may include:
- Premium increases
- Deductible changes
- Provider network updates
- Prescription drug formulary changes
- New benefits
- Reduced benefits
- Plan discontinuations
Even if you are completely satisfied with your current plan, it's important to verify that the plan remains competitive and continues to meet your healthcare needs.
What Changes Can You Make During AEP?
The Annual Enrollment Period offers significant flexibility.
Switch Medicare Advantage Plans
You may move from:
- One Medicare Advantage plan to another
- One insurance company to another
- An HMO to a PPO
- A PPO to an HMO
Many Florida beneficiaries use AEP to find plans with better benefits or lower costs.
Leave Medicare Advantage
You may choose to leave Medicare Advantage and return to:
- Medicare Part A
- Medicare Part B
You can also add:
- A Part D prescription drug plan
Depending on your circumstances, you may also explore Medicare Supplement coverage.
Join Medicare Advantage
If you currently have Original Medicare, AEP allows you to enroll in a Medicare Advantage plan.
Many people make this change to gain access to:
- Dental coverage
- Vision benefits
- Hearing benefits
- Prescription drug coverage
- Fitness programs
Change Prescription Drug Plans
Part D plans change every year.
During AEP, you can:
- Change drug plans
- Add a drug plan
- Drop a drug plan
This is especially important if your medications have changed during the year.
Why Medicare Plans Change Every Year
One of the biggest misconceptions about Medicare is that plans remain the same from year to year.
In reality, insurance companies constantly adjust their offerings.
Network Changes
Doctors and hospitals may:
- Join a network
- Leave a network
- Stop accepting certain plans
A doctor covered this year may not be covered next year.
Drug Formulary Changes
Insurance companies update prescription drug formularies annually.
This may result in:
- Higher copays
- New restrictions
- Prior authorization requirements
- Drug removals
Cost Changes
Plans frequently adjust:
- Monthly premiums
- Deductibles
- Copays
- Maximum out-of-pocket limits
Benefit Changes
Some plans may add:
- Enhanced dental benefits
- Hearing coverage
- Transportation services
- Over-the-counter allowances
Others may reduce or eliminate benefits.
Understanding the Annual Notice of Change (ANOC)
Every Medicare beneficiary should receive an important document each fall called the:
Annual Notice of Change (ANOC)
This document outlines changes to your plan for the upcoming year.
The ANOC may include:
Premium Changes
Your monthly premium may increase or decrease.
Provider Network Changes
Doctors or facilities may be added or removed.
Prescription Coverage Changes
Drug costs or formularies may change.
Benefit Adjustments
Supplemental benefits may expand or shrink.
Unfortunately, many beneficiaries throw away this document without reading it.
That's one of the biggest Medicare mistakes you can make.
What Happens If You Ignore AEP?
Many people simply allow their coverage to renew automatically.
While that may seem easier, it can create problems.
Higher Costs
You may miss a plan that offers:
- Lower premiums
- Better prescription coverage
- Reduced copays
Lost Providers
Your favorite doctor may no longer participate.
Reduced Benefits
Dental, vision, hearing, or OTC allowances may change significantly.
Plan Terminations
In recent years, some Medicare Advantage and PPO plans have been discontinued entirely.
Beneficiaries who fail to review their options may end up enrolled in coverage that doesn't fit their needs.
How to Prepare for AEP
A successful Annual Enrollment review begins before October 15.
Review Your Current Plan
Ask yourself:
- Am I happy with my doctors?
- Have my medications changed?
- Have my healthcare needs changed?
- Am I paying more than expected?
Make a Medication List
Create an updated list that includes:
- Medication names
- Dosages
- Frequency
This helps compare drug coverage accurately.
Gather Provider Information
Make a list of:
- Primary care physicians
- Specialists
- Hospitals
Provider participation is a critical factor when selecting a plan.
Schedule a Medicare Review
Working with a licensed Medicare broker can simplify the process dramatically.
Real-Life Florida Example
A Jacksonville retiree contacted me after receiving her ANOC.
At first glance, her plan appeared unchanged.
However, after reviewing the details, we discovered:
- Her cardiologist was leaving the network
- Her prescription costs were increasing
- Her annual dental allowance was being reduced
After comparing available plans, we found an alternative Medicare Advantage plan that:
- Kept her cardiologist
- Lowered prescription costs
- Increased dental benefits
- Maintained a $0 monthly premium
Without reviewing her coverage during AEP, she likely would have experienced unexpected expenses the following year.
Common AEP Mistakes
Waiting Until December
The closer you get to December 7, the less time you have to compare options carefully.
Focusing Only on Premiums
Healthcare costs involve more than monthly premiums.
Consider:
- Copays
- Deductibles
- Prescription expenses
- Out-of-pocket maximums
Ignoring Drug Coverage
A plan that saves $10 per month on premiums could cost hundreds more in prescription expenses.
Not Asking Questions
Medicare can be complicated.
Getting professional guidance can help avoid costly mistakes.
Why Work With Derek Rogers During AEP?
As an independent Medicare broker, I help Florida residents:
- Compare Medicare Advantage plans
- Review Medicare Supplement options
- Analyze Part D prescription drug coverage
- Verify provider participation
- Understand plan changes
- Navigate enrollment deadlines
Most importantly, I provide objective guidance based on your individual healthcare needs.
There is no cost to work with me.
Frequently Asked Questions
Do I have to make changes during AEP?
No. If you're satisfied with your current coverage, you may keep it.
However, reviewing your options annually is highly recommended.
What if my plan is being discontinued?
You'll typically receive special enrollment rights that allow you to choose a new plan.
Can I switch plans after December 7?
Possibly, depending on your circumstances and available enrollment periods.
Should I review my Medicare plan every year?
Absolutely. Annual reviews help ensure you're receiving the best value and coverage available.
Contact Derek Rogers Today
HealthMarkets Insurance – Derek Rogers
10199 Southside Boulevard #100
Jacksonville, FL 32256
Phone: (904) 536-8054
Email: derek.rogers@healthmarkets.com
If you'd like help reviewing your Medicare coverage during Annual Enrollment Period, contact me today for a free Medicare plan review.
Together, we'll compare your options and make sure you're ready for the upcoming year.













