Medicare 2026

Sumter Medicare: how Medigap and Advantage plans are built

SUMTER, S.C. — Turning 65 in the Midlands often means sitting at the kitchen table with a stack of mail and one big question: should you stay with Original Medicare and add a Medigap policy, or go with a Medicare Advantage plan? They sound similar. They are not. And the choice shapes how you see doctors, how you pay bills, and how you handle a hospital stay for years to come.

Here in Sumter, where retirees mix Shaw Air Force Base benefits, state pensions, and small-business coverage, understanding these two paths matters more than picking a color on a brochure.

Path one: Original Medicare, with or without Medigap

Original Medicare is the federal program most people picture when they think of Medicare. It has two parts: Part A (hospital) and Part B (doctor and outpatient). You can generally see any provider in the country that accepts Medicare, and you don't need referrals.

Original Medicare pays its share, and you pay the rest — a deductible, coinsurance, and, importantly, no yearly limit on out-of-pocket costs. That last part is why many people add a Medigap policy (also called Medicare Supplement Insurance). Medigap is sold by private insurers and helps cover the gaps Original Medicare leaves behind, like the 20% coinsurance on Part B services.

Two things to remember about this path:

• Original Medicare does not include prescription drug coverage. Most people on this path add a stand-alone Part D drug plan.
• Medigap only works with Original Medicare. It cannot be paired with a Medicare Advantage plan.

Path two: Medicare Advantage (Part C)

Medicare Advantage is the private-plan alternative. When you enroll in a Medicare Advantage plan, you still have Medicare — but a private insurer, under contract with the federal government, manages your Part A and Part B benefits. Most Advantage plans also fold in Part D drug coverage and may include extras Original Medicare doesn't cover.

Because these plans are run by insurers, they usually work through networks (HMOs, PPOs) and may require referrals or prior approval for certain services. In exchange, they must cap your yearly out-of-pocket costs for Part A and B services, which Original Medicare alone does not do.

Sumter is in Sumter County, where plan availability is set at the county level. That means the specific mix of Medicare Advantage plans a neighbor across town sees on medicare.gov is the same mix you'll see — even if your doctors, prescriptions, and priorities are very different.

The trade-offs, in plain terms

There is no universally "right" answer. There are trade-offs:

• Choice of providers. Original Medicare + Medigap generally offers the widest doctor access nationwide. Medicare Advantage typically uses local networks.
• Predictability. Medicare Advantage plans put a yearly ceiling on medical out-of-pocket spending. Original Medicare alone does not — which is why Medigap exists.
• Paperwork and rules. Original Medicare has fewer prior-authorization hoops. Advantage plans may require more approvals but often bundle drug and extra benefits.
• Switching later. You can generally change Medicare Advantage plans during set windows. But moving from Medicare Advantage back to Original Medicare + Medigap later in life can be harder, because Medigap insurers in most states can use medical underwriting outside your initial enrollment window.

What's the same on both paths

Some rules apply no matter which path you pick, as long as you have drug coverage:

• The Part D out-of-pocket cap is $2,100 in 2026. Once your drug spending hits that, you pay $0 for covered drugs the rest of the year.
• The Part D maximum deductible is $615.
• The old "donut hole" coverage gap has been eliminated as of 2025. Part D now has three phases.
• The Medicare Prescription Payment Plan lets you spread your drug costs across the year in monthly payments instead of paying big amounts at the pharmacy counter.
• Higher-income beneficiaries pay IRMAA surcharges on Part B and Part D. Those start above $109,000 in income for a single filer in 2026.

Key dates to circle

• October 15 – December 7: Annual Enrollment Period. You can join, switch, or drop a Medicare Advantage plan or a Part D drug plan. Changes take effect Jan. 1.
• January 1 – March 31: Medicare Advantage Open Enrollment. If you're already in a Medicare Advantage plan, you get one chance to switch to a different Advantage plan or go back to Original Medicare (and add a Part D plan).
• Your Initial Enrollment Period around your 65th birthday is often the best window to buy Medigap with guaranteed acceptance. Miss it, and in most states insurers can consider your health.