Medicare Advantage

Medicare Advantage in Atlanta: 81 plans for 2027

For 2027, Atlanta is looking at 90 Medicare Advantage plans: 9 new, 16 gone since 2026, and 29 still here but changed on premium, deductible, plan type or name, 9 of them under a new name. Below, how the lineup shifted in Fulton County and what to compare, with no plan ranked or recommended.

ATLANTA — With 81 Medicare Advantage plans available in Fulton County for 2027, Atlanta shoppers have plenty to sort through. But sorting through them only helps if you act inside the right window. Miss a deadline, and your next chance to change coverage may be months away.

This guide walks you through the 2026–2027 Medicare enrollment calendar — which dates apply to whom, what happens if you let one pass, and how the windows fit together.

The window most Atlanta readers ask about: AEP

The Annual Enrollment Period (AEP) is October 15 through December 7 every year. This is when anyone with Medicare can:

• Switch from Original Medicare to a Medicare Advantage plan, or vice versa.
• Change from one Medicare Advantage plan to another.
• Join, drop, or switch a Part D prescription drug plan.

Any choice you make during AEP takes effect January 1. In Fulton County, that means your 2027 coverage locks in based on what you did — or didn't do — by December 7, 2026.

If you do nothing, most plans will simply renew you into next year's version of your current plan. That's convenient, but the plan you had in 2026 may look different in 2027, which is why CMS mails out an Annual Notice of Change each fall. Read it before AEP closes.

A second chance in the new year: MA Open Enrollment

If you're already in a Medicare Advantage plan on January 1 and you realize it isn't the right fit, you get one more window: the Medicare Advantage Open Enrollment Period, January 1 through March 31.

During those three months, you can:

• Switch to a different Medicare Advantage plan.
• Drop your Medicare Advantage plan and return to Original Medicare (and add a stand-alone Part D plan if you need drug coverage).

You only get to make one change during this window, and it does not apply to people who are in Original Medicare on January 1. It is a safety net for Advantage members, not a do-over for everyone.

Turning 65 in Atlanta: your Initial Enrollment Period

If you're approaching 65, your Initial Enrollment Period (IEP) is a seven-month window: the three months before your 65th birthday month, the birthday month itself, and the three months after.

Signing up during those first three months usually means coverage starts the month you turn 65. Waiting until your birthday month or later can push your start date back.

Missing IEP entirely can trigger late enrollment penalties for Part B and Part D — penalties that stick with you for as long as you have Medicare. If that happens, your next general opportunity to sign up for Part B is the General Enrollment Period, January 1 through March 31, with coverage starting the month after you enroll.

Special Enrollment Periods: when life changes the calendar

Some life events open a Special Enrollment Period (SEP) outside these standard windows. Common triggers include:

• Losing employer or union coverage.
• Moving out of your plan's service area — for example, moving into or out of Fulton County.
• Qualifying for Medicaid or Extra Help with drug costs.
• Your plan leaving the Medicare program.

SEP rules and length vary by event. If you think one applies, call 1-800-MEDICARE before assuming you have to wait for AEP.

Why the dates matter more in a big market

Fulton County has 81 Medicare Advantage plans for 2027, offered by 10 different carriers. That's a lot to compare against your doctors, your prescriptions, and your budget. Waiting until the final week of AEP to start looking often means rushed choices.

A practical timeline:

• October: Read your Annual Notice of Change. Make a list of your doctors and medications.
• Late October to mid-November: Use the Plan Finder at medicare.gov to compare options.
• Before December 7: Enroll or make changes.
• January to March: If you're in a Medicare Advantage plan and something isn't working, use MA Open Enrollment.

Note that stand-alone Part D plans aren't sold county by county: Georgia has 9 stand-alone Part D plans for 2027, sold statewide, and drug coverage in Fulton County is also commonly bundled into Medicare Advantage (MA-PD) plans. If you stay with Original Medicare and need drug coverage, you can still shop Part D plans through medicare.gov.

A quick word on 2027 program changes

A few program-wide numbers to keep in mind as you plan:

• Part D out-of-pocket costs are capped at $2,100 in 2026 and $2,400 in 2027.
• The Part D deductible maxes out at $615 for 2026 and $700 for 2027.
• The old "donut hole" is gone — Part D now has three phases.
• The Medicare Prescription Payment Plan lets you spread drug costs across the year in monthly amounts.
• IRMAA income surcharges begin above $109,000 for single filers in 2026.