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Medicare Supplement

The Medicare Enrollment Timeline in Southaven

If you're approaching 65 in Southaven, you're about to make some of the most important health coverage decisions of your life. The good news: Medicare isn't as complicated as it looks once you understand the timeline. The key is knowing what to do — and when — so you don't miss a deadline or pay a penalty later.

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Key takeaways

  • Your Initial Enrollment Period (IEP) is a 7-month window built around your 65th birthday, so it's important to know your exact dates.
  • Signing up in the three months before your birthday month usually starts coverage on the first day of your birthday month, while signing up later means coverage starts the month after you enroll.
  • Missing your enrollment window can lead to lifelong late-enrollment penalties for Part B and Part D.
  • Medicare plan availability in DeSoto County is set at the county level by CMS, so you should check medicare.gov/plan-compare with your ZIP code to see accurate options.

Southaven, MS — Your 65th birthday is closer than you think

Here's a plain-English walkthrough of your Initial Enrollment Period and the first steps to take.

What is the Initial Enrollment Period?

Your Initial Enrollment Period (IEP) is a 7-month window built around your 65th birthday. It includes:

If you sign up in the three months before your birthday month, your coverage generally starts the first day of your birthday month. Sign up later in the window, and coverage begins the month after you enroll.

Missing this window can mean lifelong late-enrollment penalties for Part B and Part D, so mark your calendar early. You can confirm your exact dates at medicare.gov.

Step 1: Decide if you need to actively enroll

Some people are enrolled in Medicare automatically. If you're already receiving Social Security benefits when you turn 65, you'll typically get your Medicare card in the mail a few months before your birthday.

If you're not yet drawing Social Security, you'll need to sign up yourself through the Social Security Administration at ssa.gov or by calling 1-800-772-1213.

Still working at 65 with employer coverage? You may be able to delay Part B without penalty — but the rules depend on how big your employer is and how the coverage is structured. This is a great question to bring to a SHIP counselor (more on that below).

Step 2: Understand the parts of Medicare

You generally choose one of two paths: Original Medicare (often with a Medigap and a standalone Part D plan) or Medicare Advantage.

Step 3: Know what's new for 2026

A few program-level facts that apply everywhere, including Southaven:

Step 4: Understand what's available in your area

Southaven is in DeSoto County, where Medicare plan availability — the number of Medicare Advantage and standalone Part D plans and carriers — is set at the county level by CMS. When you shop, use the plan finder at medicare.gov/plan-compare and enter your ZIP code so you see the accurate list for DeSoto County.

Two other dates worth remembering:

Step 5: Get free, unbiased help

You don't have to figure this out alone. Free help is available from:

By the numbers

Medicare Part B premium, 2006–2026

The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.

$0$50$100$150$200200820122016202020242026

Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.

Prescription coverage

How Medicare Part D works in 2026

The old coverage gap (“donut hole”) is eliminated as of 2025 (three phases now). There’s now a hard yearly cap of $2,100 on what you pay out of pocket for covered drugs, and you can spread those costs across the year with the Medicare Prescription Payment Plan.

Phase 1
Deductible
You pay full price for covered drugs until you meet your plan's deductible (no more than $615 in 2026).
Phase 2
Initial coverage
You and your plan share costs through copays or coinsurance.
Phase 3
Catastrophic coverage
Once your out-of-pocket drug spending hits $2,100, you pay nothing more for covered drugs for the rest of the year.

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The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

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When can you enroll? An interactive year

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October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

Good to know

Frequently asked questions

Q: I'm turning 65 in March. When should I actually sign up?
A: The earliest you can enroll is December (three months before your birthday month). Signing up before March means your Medicare coverage can start March 1. Waiting until after March pushes your start date back.
Q: I'm still working and have insurance through my job. Do I have to take Medicare at 65?
A: Not always. Many people with qualifying employer coverage delay Part B without penalty and enroll later through a Special Enrollment Period. But the rules depend on your employer's size and plan type — check with your HR department and SHIP before deciding.
Q: What happens if I miss my Initial Enrollment Period?
A: You may face late-enrollment penalties for Part B and Part D that stay with you for as long as you have Medicare. You'd also have to wait for the General Enrollment Period (January 1 – March 31) to sign up for Part B.
Sources & further reading
  • CMS — Medicare basics (medicare.gov)

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

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