Medicare Advantage

Medicare in Southaven: Your 2027 Deadlines

Medicare in Southaven: your 2027 plan options, enrollment windows, and key deadlines to know this fall.

SOUTHAVEN, Miss. — If you're sorting through Medicare in Southaven this fall, the calendar matters as much as the plan count. Southaven sits in DeSoto County, where the Centers for Medicare & Medicaid Services (CMS) listed 70 Medicare Advantage plans for 2026 from 9 carriers. The 2027 lineup is detailed in each plan's ANOC and on Medicare.gov's Plan Finder. The enrollment windows on your calendar decide when you're actually allowed to pick, switch, or fix a choice.

This guide walks through those windows in plain language, so you know which door is open when.

The window most people use: Oct. 15 – Dec. 7

This is the Annual Enrollment Period, often called AEP or the fall Open Enrollment. During these dates you can:

• Join, switch, or drop a Medicare Advantage plan.
• Join, switch, or drop a stand-alone Part D drug plan.
• Move between Original Medicare and Medicare Advantage.

Any change you make during AEP starts Jan. 1, 2027. If you don't do anything, your current coverage generally rolls over — but only if your plan still exists next year. Every fall, carriers send an Annual Notice of Change (ANOC) in September explaining what's different for 2027. Read that letter before Dec. 7, because it's your early warning if premiums, drug lists, or provider networks are shifting.

Missed Dec. 7? What January opens up

If Dec. 7 slips past you, you're not stuck for a whole year — but your options narrow.

From Jan. 1 to March 31, the Medicare Advantage Open Enrollment Period lets people who are already in a Medicare Advantage plan make one change. You can switch to a different Medicare Advantage plan, or drop it and return to Original Medicare (and add a stand-alone Part D plan if you need drug coverage).

Two important limits:

• This window is only for people already enrolled in Medicare Advantage on Jan. 1. If you're in Original Medicare, it doesn't apply.
• You get one switch, not unlimited shopping. Choose carefully.

When you first become eligible

Turning 65 in 2026 or 2027, or getting Medicare through disability? You have your own Initial Enrollment Period — a seven-month window that starts three months before your eligibility month and ends three months after. This is separate from AEP, and it's the cleanest time to enroll because you avoid most late-enrollment penalties for Part B and Part D.

If you delay Part B because you have qualifying job-based coverage, a Special Enrollment Period kicks in when that coverage ends.

Life changes that reopen the door

Outside of these set windows, certain life events trigger a Special Enrollment Period (SEP). Common examples:

• Moving out of your current plan's service area (say, moving to or from Southaven).
• Losing employer or union coverage.
• Qualifying for Medicaid or Extra Help with drug costs.
• Your plan leaving the Medicare program.

SEP rules vary by situation, so confirm your timeline with 1-800-MEDICARE before you assume you're covered.

Why timing matters more with a big menu

DeSoto County residents chose from 70 Medicare Advantage plans in 2026, offered by 9 carriers; the 2027 count is in each plan's ANOC and on Medicare.gov's Plan Finder. Note that CMS data for the area showed 0 stand-alone Part D plans listed at the county level in the 2026 dataset — a reminder to verify drug-plan availability directly on medicare.gov's Plan Finder using your ZIP code, since drug plans are sold by region.

With that many Medicare Advantage options, don't wait until the first week of December to start comparing. A few program-level figures worth knowing while you shop:

• The Part D out-of-pocket cap is $2,100 in 2026.
• The maximum Part D deductible is $615 in 2026 ($700 in 2027).
• The coverage gap (the old "donut hole") was eliminated in 2025 — Part D now has three phases.
• The Medicare Prescription Payment Plan lets you spread drug costs into monthly payments if you opt in.
• IRMAA income surcharges start above $109,000 for a single filer in 2026.

These are program rules, not plan features — they apply no matter which plan you choose.

A simple timing checklist

• September: Read your ANOC letter.
• Early October: List your doctors, pharmacies, and medications.
• Oct. 15 – Dec. 7: Compare and enroll. Confirm you have a written confirmation number.
• Jan. 1: New coverage begins.
• Jan. 1 – March 31: If you're in Medicare Advantage and want a do-over, use it once.