Medicare Supplement

Medigap in Warner Robins: What Each Letter Plan Covers

Warner Robins, Ga. — If you've ever looked at Original Medicare and wondered who pays the leftover 20%, you've stumbled onto the reason Medicare Supplement insurance exists. These plans, often called Medigap, are designed to fill the gaps that Parts A and B leave behind — things like coinsurance, copays, and hospital deductibles.

Here in Warner Robins, retirees ask us about Medigap almost as often as they ask about Advantage plans. So let's slow down and walk through what Medigap actually does, how the lettered plans work, and where to get personal help.

What Medigap is — and what it isn't

Medigap is private insurance that works alongside Original Medicare (Parts A and B). When Medicare pays its share of a covered service, your Medigap plan steps in to help pay some or all of what's left.

A few important truths, straight from Medicare.gov:

• Medigap only works with Original Medicare. It does not work with Medicare Advantage.
• Medigap does not include prescription drug coverage. For drugs, you'd add a separate Part D plan.
• Medigap does not cover long-term care, dental, vision, hearing aids, or private-duty nursing.
• You pay a monthly premium for Medigap in addition to your Part B premium.

Think of it as a financial cushion for the medical bills Original Medicare doesn't fully pay.

How the standardized letters work

This is the part that trips people up. In most states, including Georgia, Medigap plans are standardized — meaning a Plan G from one company covers the exact same benefits as a Plan G from another company. The price can differ, but the benefits cannot.

As of 2026, the plans available are labeled with letters: A, B, D, G, K, L, M, and N. (Plans C and F are only available to people who became eligible for Medicare before January 1, 2020.) High-deductible versions of Plan G and Plan F exist as well.

Each letter offers a different mix of coverage for items like:

• Part A hospital coinsurance and hospital costs after Medicare benefits run out
• Part B coinsurance or copayments
• The first three pints of blood
• Skilled nursing facility coinsurance
• The Part A deductible
• The Part B deductible (only on older plans)
• Part B "excess charges"
• Foreign travel emergency care (up to plan limits)

Plans K and L are cost-sharing plans with an annual out-of-pocket limit — you pay a percentage until you hit the cap. Plan N generally has lower premiums but small copays for some office and ER visits.

Medicare.gov keeps an up-to-date benefits chart that shows exactly what each letter covers. It's worth printing before you shop.

When you can buy without medical questions

Timing matters more with Medigap than with almost any other Medicare choice.

Your Medigap Open Enrollment Period is a one-time, six-month window that starts the month you're both 65 or older and enrolled in Part B. During this window, insurance companies cannot deny you a Medigap policy or charge you more because of your health.

Outside that window, in most cases, carriers in Georgia can use medical underwriting — meaning they can ask health questions and turn you down. There are limited "guaranteed issue" rights in certain situations (like losing employer coverage), but they're narrow. If you're considering Medigap, don't let that six-month window slip by without at least comparing.

How Medigap fits with the rest of Medicare

A common Warner Robins setup looks like this: Original Medicare (Parts A and B) + a Medigap policy + a stand-alone Part D drug plan. The Medigap piece handles the hospital and doctor cost-sharing; the Part D piece handles pharmacy costs.

Speaking of Part D, a few 2026 numbers to keep in mind:

• The Part D out-of-pocket cap is $2,100 for 2026. Once your drug spending reaches that ceiling, you pay $0 for covered drugs the rest of the year.
• The maximum Part D deductible is $615.
• The old "donut hole" is gone — as of 2025, Part D has three phases instead of four.
• The Medicare Prescription Payment Plan lets you spread drug costs across the calendar year in monthly installments if you choose to opt in.
• IRMAA surcharges for higher-income beneficiaries kick in above $109,000 in income for a single filer in 2026.

Medigap doesn't change any of these Part D rules — it just sits on the medical side of the ledger.

The local picture in Houston County

Warner Robins is in Houston County, where Medicare beneficiaries can choose between staying with Original Medicare (and optionally adding Medigap and Part D) or enrolling in a Medicare Advantage plan. Advantage plan availability is set at the county level, and Houston County typically has a healthy selection of Advantage options each year.

Remember: if you go the Medigap route, you're staying with Original Medicare. If you switch to Medicare Advantage, you generally cannot use a Medigap policy — and if you later want to return to Original Medicare and buy Medigap, medical underwriting may apply.

Key dates to remember

• October 15 – December 7: Medicare Annual Enrollment Period (for Advantage and Part D changes).
• January 1 – March 31: Medicare Advantage Open Enrollment Period.
• Your Medigap Open Enrollment Period: six months, starting the month you're 65+ and enrolled in Part B.

Medigap isn't tied to the fall AEP — you can apply any time — but your best pricing and access is almost always during your personal six-month window.