RESOURCES
Medicare Enrollment Periods Explained.
Understanding Medicare enrollment periods is one of the most important parts of making confident Medicare decisions. Different enrollment periods allow different types of changes, and knowing which one applies to your situation can help you avoid unnecessary delays or late enrollment penalties.
ENROLLMENT PERIODS
Several Medicare Enrollment Windows
ANNUAL ENROLLMENT PERIOD
October 15 To December 7
SPECIAL ENROLLMENT
Triggered By Qualifying Life Events
LATE PENALTY
Some Penalties May Apply
OVERVIEW
Which Enrollment Period Applies To You?
Every Medicare enrollment period has its own purpose, eligibility requirements, and timeline. Knowing which enrollment period applies to your situation is the first step toward making informed Medicare decisions.
Whether you’re turning 65, reviewing your current coverage, retiring, moving, or experiencing another qualifying life event, different rules may apply. Understanding those rules can help you avoid missed opportunities and potential late enrollment penalties.
One of the most common questions I hear is, ‘When can I make changes to my Medicare coverage?’ The answer depends on your situation and which enrollment period applies. That’s where I can help.
Mark Holmes, Founder
Common Medicare Enrollment Situations
Turning 65 and enrolling in Medicare for the first time
Reviewing your current Medicare coverage each year
Already enrolled in a Medicare Advantage plan
Delaying Medicare Part B while still working
Retiring, moving, or experiencing a qualifying life event
Enrollment Period Quick Reference
Initial Enrollment Period (IEP)
7 months around age 65
Annual Enrollment Period (AEP)
October 15 to December 7
Medicare Advantage Open Enrollment (OEP)
January 1 to March 31
General Enrollment Period (GEP)
January 1 to March 31
Special Enrollment Period (SEP)
Timing depends on the qualifying life event
Medigap Open Enrollment
6-month enrollment window after your Part B effective date
Key Enrollment Facts
Part B Late Enrollment Penalty
May apply if you delay enrollment without qualifying coverage
AEP Coverage Begins
January 1 for most changes made during AEP
OEP Eligibility
Available to people already enrolled in a Medicare Advantage plan
SEP Timeframe
Varies based on the qualifying life event
Medigap Open Enrollment
Begins when you're age 65 or older and enrolled in Medicare Part B
ENROLLMENT PERIODS
What You Can Do During Each Enrollment Period
Each Medicare enrollment period serves a different purpose. Understanding what changes are allowed during each one can help you make informed decisions and avoid unnecessary delays or missed opportunities.
Annual Enrollment Period
October 15 To December 7
- Join, switch, or leave a Medicare Advantage plan
- Join, switch, or drop a Part D prescription drug plan
- Most changes become effective January 1
MA Open Enrollment Period
January 1 to March 31
- Switch from one Advantage plan to another
- Return to Original Medicare from Advantage
- Add Part D if returning to Original Medicare
General Enrollment Period
January 1 to March 31
- Enroll in Medicare Part A or Part B if eligible
- Intended for people who missed their Initial Enrollment Period
- Late enrollment penalties may apply in some situations
Initial Enrollment Period
7-Month Enrollment Window
- Begins three months before your 65th birthday month
- Includes your birthday month
- Continues for three months afterward
Medigap Open Enrollment
Starts With Medicare Part B
- Apply for any available Medigap plan
- Medical underwriting generally does not apply during this period
- Coverage options may change after this enrollment window ends
Special Enrollment Period
After Qualifying Life Events
- Available after qualifying life events
- Timing depends on the event that qualifies you
- Allows eligible Medicare changes outside Annual Enrollment
YOUR APPOINTMENT
What to Expect When You Work with Mark on Enrollment.
Every Medicare enrollment period has different rules and deadlines. Mark helps you determine which enrollment period applies, explains your options, and guides you through the enrollment process with personalized Medicare guidance.
1
Identify Your Enrollment Window
Mark reviews your age, current coverage, and any recent life events to determine which Medicare enrollment period applies to your situation.
2
Confirm What You Can Change
Every enrollment period allows different types of Medicare changes. Mark explains what options are available before recommending a plan.
3
Review Your Options
Mark compares available Medicare plans in your county based on your doctors, prescriptions, healthcare needs, and budget so you can make an informed decision.
4
Enroll Before the Deadline
Once you’ve chosen a plan, Mark helps complete your enrollment electronically and confirms everything is submitted before your enrollment deadline.
Video Appointment
Meet with Mark from the comfort of your home using a secure video appointment. He’ll review your Medicare options, answer your questions, and provide personalized guidance.
Phone Appointment
Prefer to talk by phone? Mark can review your Medicare options, answer your questions, and guide you through the enrollment process without an office visit.
Email Consultation
Need to ask a question or send information before your appointment? Email Mark to discuss your situation and receive clear guidance on your Medicare options.
Electronic Enrollment
When you’re ready to enroll, Mark guides you through the application electronically and helps ensure everything is submitted before your enrollment deadline.
COMMON MISTAKES
Common Medicare Enrollment Mistakes Mark Helps You Avoid
Choosing the right Medicare plan is important, but so is enrolling at the right time. Understanding Medicare enrollment rules can help you avoid unnecessary delays, coverage gaps, or late enrollment penalties.
Missing Your Initial Enrollment Period
Late Enrollment Penalties May Apply
- Your Initial Enrollment Period lasts 7 months around your 65th birthday
- Missing it could result in late enrollment penalties
- Mark helps determine your enrollment timeline before deadlines arrive
Delaying Part B While On COBRA
COBRA Is Not Active Employment Coverage
- COBRA generally doesn't extend your Special Enrollment Period for Part B
- Delaying Part B may result in a late enrollment penalty
- Mark reviews your coverage before you make enrollment decisions
Missing Your Medigap Open Enrollment
Medical Underwriting May Apply Later
- Medigap Open Enrollment begins when Part B starts
- Applying later may require medical underwriting
- Mark helps you understand your enrollment timeline
Skipping Your Annual Coverage Review
Plans Change Every January 1st
- Premiums, provider networks, and drug formularies can change
- Your current plan may no longer be your best fit
- Mark reviews your Medicare coverage each AEP
Using The Wrong Enrollment Period
Different Rules Apply To Each Period
- Each enrollment period allows different plan changes
- Some changes are only available during certain windows
- Mark helps identify the period that applies to you
Missing A Special Enrollment Period
Enrollment Windows Vary By Event
- Qualifying life events may open a limited enrollment window
- Missing the deadline could delay your Medicare changes
- Mark helps determine whether you qualify
SPECIAL ENROLLMENT PERIODS
Life Events That May Open A Medicare Enrollment Period
Special Enrollment Periods (SEPs) allow eligible individuals to make certain Medicare changes outside of the Annual Enrollment Period. These enrollment opportunities are triggered by specific qualifying life events and follow Medicare’s eligibility rules.
Because every situation is different, the length of a Special Enrollment Period and the changes you can make depend on the event that qualifies you. Mark helps determine whether you may qualify and what options are available.
After a major life change, one of the first things I look at is whether it creates a Special Enrollment Period. Many people are surprised to learn they may have additional Medicare options.
Mark Holmes, Founder
- Losing employer or union health coverage
- Moving outside your current plan's service area
- Gaining or losing Medicaid eligibility
- Leaving a nursing home or care facility
- Your Medicare plan ends or leaves your area
- Qualifying for Extra Help with Part D costs
SEP Window Reference
Lose employer coverage
Part B: Up to 8 months Medicare Advantage/Part D: Typically 2 months
Move to new service area
Begins when you move and continues for 2 months after
Gain Medicaid eligibility
Plan changes may be available once per calendar month
Leave nursing facility
While living there and for 2 full months after moving out
Plan leaves your area
Timing depends on how and when the plan’s contract ends
Five-star plan available
One switch from December 8 through November 30
SEP Rules Vary By Situation
Each Special Enrollment Period has its own eligibility requirements and enrollment timeframe. If you’ve recently experienced a qualifying life event, Mark can help determine whether you qualify and explain your Medicare options.
COMMON QUESTIONS
Open Enrollment, Answered.
Can I change my Medicare plan any time of year?
No. Most Medicare plan changes must be made during specific enrollment periods. The Annual Enrollment Period (October 15 to December 7) is the primary opportunity to review and change coverage. Outside of AEP, changes are generally only available if you qualify for a Special Enrollment Period or another Medicare enrollment opportunity.
What if I miss the Annual Enrollment Period?
If you miss the Annual Enrollment Period and don’t qualify for a Special Enrollment Period, you’ll generally need to wait until another eligible enrollment period to make plan changes. Your current coverage typically continues unless your plan is discontinued. Mark can review your situation to determine whether another enrollment opportunity is available.
Does my current plan automatically renew during AEP?
In many cases, yes. If you don’t make changes during the Annual Enrollment Period, your current Medicare plan generally renews for the following year. However, premiums, provider networks, prescription drug formularies, and benefits may change, making it a good idea to review your coverage annually.
How long do I have after a qualifying life event?
The length of a Special Enrollment Period depends on the qualifying life event. Many enrollment opportunities last for about two months, while others have different timelines. Because the rules vary, Mark can help determine whether you qualify and how much time you have to make Medicare changes.
Can I switch from Medicare Advantage to Original Medicare any time?
No. You can generally switch from a Medicare Advantage plan to Original Medicare during the Annual Enrollment Period (October 15 to December 7) or the Medicare Advantage Open Enrollment Period (January 1 to March 31). In some situations, a Special Enrollment Period may also allow this change.
Is there a cost for Mark's enrollment guidance?
No. Mark’s Medicare guidance is provided at no cost to you. He is compensated by Medicare insurance carriers if you choose to enroll in a plan through his agency. There are no consultation fees or enrollment charges for his guidance.
READY TO REVIEW YOUR MEDICARE OPTIONS?
Get Personalized Medicare Enrollment Guidance.
Whether you’re enrolling in Medicare for the first time, reviewing your current coverage, or navigating a qualifying life event, Mark provides personalized guidance to help you understand your options and enroll with confidence. His services are always provided at no cost to you.