Medicare Annual Enrollment Period (AEP) 2026: Everything You Need to Know

Every year, Medicare beneficiaries get one important opportunity to review their health plans and make changes. This period is critical: the decisions you make now will determine your health coverage for the entire year of 2027.

If you have Medicare Advantage, drug coverage (Part D), or are considering any changes, you need to know exactly when you can make changes and how to avoid costly mistakes. This complete guide explains everything you need to know about the 2026 Annual Enrollment Period (AEP).

What is the Annual Enrollment Period (AEP)?

The Annual Enrollment Period (AEP) is the designated window each year when Medicare beneficiaries can change their health plans and medication coverage. It's your annual opportunity to review what's covered and make adjustments as needed.

During AEP, you can make major coverage changes without waiting for a qualifying life event (like moving or losing coverage).

Who Participates in AEP

AEP primarily affects:

• People with Medicare Advantage: Can switch between plans or return to Original Medicare
• People with Part D (drug coverage): Can change drug plans or pharmacies
• People with Medigap: Can change supplemental plans
• People in Original Medicare considering changes: Can enroll in a Medicare Advantage plan

Exact Dates for AEP 2026

Why These Dates Matter

This 53-day window is your ONLY chance to change drug plans or Medicare Advantage plans (unless you have a qualifying life event). If you miss this deadline:

• Changes won't take effect until January 1, 2028 (nearly a year later)
• You'll be "locked in" to your current plan for almost the entire year
• You could be overpaying for medications that changed price
• Your doctors might leave the network with no way to switch

What Changes You Can Make During AEP

During AEP, you have a full menu of changes available. Let's explore each option:

Option 1: Switch Between Medicare Advantage Plans

If you're currently in a Medicare Advantage plan, you can switch to a different Medicare Advantage plan. This is helpful if:

• Your doctor left the plan's network
• Copays or cost-sharing increased too much
• You found a plan with better benefits (dental, vision, transportation)
• The monthly premium changed
• You want better drug coverage

Option 2: Enroll in a Medicare Advantage Plan

If you're currently in Original Medicare (Parts A and B), you can enroll in a Medicare Advantage plan for the first time. This could save you money if:

• It has a $0 additional premium
• Drug coverage is included at no separate cost
• It includes extra benefits like dental, vision, or transportation
• The annual out-of-pocket maximum is predictable

Option 3: Change Your Part D Plan (Drug Coverage)

While AEP focuses on drug plans, you can change Part D plans even if you're in Original Medicare. This is CRITICAL because:

• Medication prices change every year
• Your preferred pharmacy might leave a plan
• Your current drug plan might add drugs to its formulary
• You could save hundreds of dollars with a better plan

Option 4: Switch Back to Original Medicare from Advantage

If you're in a Medicare Advantage plan and want maximum flexibility, you can switch to Original Medicare during AEP. When you do this:

• You leave your Medicare Advantage plan
• You return to Original Medicare (Parts A and B)
• You can choose a Part D plan for drug coverage (recommended)
• You can purchase a Medigap plan for additional cost-sharing coverage

Option 5: Change Your Medigap Plan

If you're in Original Medicare with a Medigap plan, you can switch to a different Medigap plan. Newer plans might offer:

• Lower deductibles
• Better cost-sharing coverage
• Lower premiums
• Overseas coverage (some plans)

What You CANNOT Change During AEP

It's equally important to understand what changes are NOT allowed during AEP:

Difference Between AEP and OEP: Don't Mix Them Up

Many people confuse AEP with OEP. Here's the critical difference:

AEP (Annual Enrollment Period) 2026

Feature	Details
Dates	October 15 - December 7, 2026
For Whom	People with Medicare Advantage and/or Part D (drugs)
Changes Allowed	Switch MA plans, change Part D, return to Original if in MA
Effective Date	January 1, 2027

OEP (Open Enrollment Period) 2027

Feature	Details
Dates	January 1 - March 31, 2027
For Whom	Anyone with Medicare, mainly MA beneficiaries
Changes Allowed	Switch between MA plans, MA to Original only
Effective Date	May 1, 2027

Key tip: If you only want to change drug plans (Part D), AEP is your ONLY window. OEP doesn't allow you to change drugs only.

How to Prepare for AEP 2026

Preparation is key to making informed decisions. Here's how to prepare:

Weeks 1-2: Gather Your Information

• Find your current plan name (check your Medicare card)
• Make a list of all medications you take (name, dose, frequency)
• Write down your main doctors' names (PCP)
• Note your preferred pharmacies
• Gather your most recent income information

Weeks 3-4: Review Your Current Plan

• Read your ANOC (Annual Notice of Changes) carefully
• Check if your doctors are still covered
• Verify your medications are covered and at what cost
• Verify your pharmacies are in-network

Weeks 5-8: Compare Options

• Visit Medicare.gov and compare plans in your ZIP code
• Use Medicare's Plan Finder tool
• Check drug costs in each Part D plan
• Confirm your doctors accept the plan

Week 9: Make Your Decision

• Choose the best plan for 2027
• Enroll BEFORE December 7 for January 1 effective date
• Save your enrollment confirmation

How to Review Your Current Plan and ANOC

You'll receive an ANOC (Annual Notice of Changes) letter from your plan. This letter is CRITICAL because it explains all changes that will affect your coverage in 2027.

Where to Find Your ANOC

• It arrives by mail around mid-September 2026
• Sent from your current insurance plan
• If you don't receive it, call your plan and request it

What to Look for in Your ANOC

• Premium changes: Did your monthly premium increase?
• Coverage changes: Are your medications still covered?
• Network changes: Are your doctors leaving the plan?
• Pharmacy changes: Are your preferred pharmacies still participating?
• Copay changes: Did medication copays increase?

Red Flags: Signs to Change Plans

If your ANOC shows:

• Significant premium increase: Consider switching plans
• Your drugs now cost more: Compare Part D plans
• Your doctor left the network: Switch plans or confirm they're covered
• Reduced special benefits coverage: Look for a better plan

Plan Changes for 2027 You Should Know About

Every year, Medicare plans make changes. Here are the general changes expected for 2027:

Premium Changes

Medicare Advantage and Part D premiums typically increase between 5-15% annually. Carefully review whether your current plan remains competitive.

Doctor Network Changes

Doctors constantly join and leave networks. Always verify your doctor is still covered before AEP ends.

Drug Formulary Changes

Plans can add or remove drugs from their covered list. If you take complex medications, compare Part D plans carefully.

Copay Changes

Drug copays typically increase. Some medications might move to a higher copay tier.

AEP 2026 Checklist

Common Mistakes to Avoid During AEP

Here are mistakes beneficiaries commonly make. Avoid them:

Mistake 1: Missing the Deadline

The problem: People wait too long and forget to enroll before December 7. If you miss it, you're stuck in your current plan for all of 2027.

The solution: Mark the date now. Consider enrolling in mid-November to be safe.

Mistake 2: Not Carefully Reviewing Drug Coverage

The problem: People assume their favorite drug is covered in the new plan. They switch and discover they have to pay more or the drug isn't covered.

The solution: Verify EVERY medication you take in Plan Finder. Look up specific copays, not just whether it's covered.

Mistake 3: Not Verifying Doctors Are In-Network

The problem: People select a plan for good premium, only to discover their preferred doctor isn't in the network.

The solution: Call the plan or use their website to verify your main doctors are in-network BEFORE enrolling.

Mistake 4: Not Considering Total Out-of-Pocket Maximum

The problem: People choose a plan because the premium is low, but the out-of-pocket maximum is very high. When they need expensive services, they spend more.

The solution: Compare total cost: premium + copays + out-of-pocket maximum. Often a slightly higher premium with lower out-of-pocket max is better.

Mistake 5: Not Updating Medication List

The problem: People use the same medication list from last year. If they started new drugs, Part D plan costs will be inaccurate.

The solution: Visit your doctor or pharmacist and update your complete medication list BEFORE comparing plans.

Mistake 6: Ignoring Special Benefits

The problem: Many Medicare Advantage plans offer extra benefits like dental cleanings, vision exams, hearing aids, and transportation. People miss this because they focus only on cost.

The solution: Check the "Special Benefits Included" section of your plan. If you use dental or need transportation, this could save you hundreds.

Free Help Available for AEP

You don't have to do this alone. Many help options are available, all at NO COST:

Licensed Beneficios Medicare Agents

Beneficios Medicare offers free consultations in English. Our agents can:

• Explain all changes in your ANOC
• Compare available plans in your area
• Verify medication coverage in multiple plans
• Confirm your doctors are in-network
• Help you enroll in your new plan
• Answer questions in English anytime

SHINE (Health Insurance Counseling Services)

Free state program with certified Medicare counselors. They can help you compare plans and make decisions.

• Website: shinehealthinsurance.org
• Help line: Call your state health department

Medicare.gov Plan Finder

Free official Medicare tool that lets you:

• Compare all available plans in your ZIP code
• See specific drug costs
• Verify doctor inclusion
• Compare special benefits
• Enroll directly (if preferred)

Website: Medicare.gov

1-800-Medicare

Official Medicare helpline. Representatives can:

• Answer AEP questions
• Help you understand plan changes
• Connect you with assistance programs
• Available in multiple languages including Spanish

Ready to Navigate AEP 2026?

Conclusion: Take Action Now

AEP 2026 (October 15 - December 7) is your chance to get the best health and drug plans for 2027. Don't wait until the last minute. Start reviewing your current plan and comparing options now.

If you need help, don't hesitate to reach out. Our bilingual team of agents is ready to answer your questions and ensure you make the best decision for your health.

Susana Marcos LLC - Beneficios Medicare
(310) 597-9142
[email protected]
WhatsApp

For complete information about Medicare in general, visit our complete Medicare guide.