Medicare 2026

Medicare Advantage and Medigap structures in Shelbyville

In Shelbyville, one of the biggest Medicare choices isn't which plan to pick — it's which structure to use. Do you want Original Medicare paired with a Medigap policy (and usually a separate Part D drug plan), or do you want a Medicare Advantage plan that bundles your coverage into one card? The two paths work very differently, and understanding that difference upfront makes every later decision easier.

The two structures, side by side

Original Medicare + Medigap + Part D. Original Medicare is the federal program — Part A (hospital) and Part B (doctor and outpatient). It lets you see any provider in the country who accepts Medicare, with no network and no referrals. But Original Medicare alone has deductibles, coinsurance, and no yearly out-of-pocket limit. That's where a Medigap policy (also called Medicare Supplement) comes in — it's private insurance that pays some or most of what Original Medicare leaves behind. Because Original Medicare doesn't include drug coverage, most people on this path also enroll in a stand-alone Part D plan.

Medicare Advantage (Part C). Medicare Advantage is private insurance approved by Medicare that takes the place of Original Medicare for your day-to-day care. You still have Medicare, but the plan manages your benefits. These plans usually have networks (HMO or PPO), often include drug coverage, and sometimes add extras like dental, vision, or hearing. They have a yearly out-of-pocket maximum for Part A and B services, but you generally cannot pair a Medigap policy with them.

How costs actually work

With Original Medicare + Medigap, most of your monthly cost is predictable: your Part B premium, your Medigap premium, and your Part D premium. When you get care, the Medigap plan smooths out the surprises.

With Medicare Advantage, monthly premiums are often lower, but you may pay copays or coinsurance each time you use care, up to the plan's yearly cap. The trade-off is convenience and bundled extras vs. broader freedom and steadier bills.

Either way, Part D drug rules are set by Medicare. In 2027, the Part D deductible can be no more than $700, and once you hit $2,400 in out-of-pocket drug costs, you're done paying for covered drugs the rest of the year. The old "donut hole" was eliminated in 2025, so there are now three simpler phases. If big drug bills hit early in the year, you can also ask to spread payments monthly through the Medicare Prescription Payment Plan.

Doctors, networks, and travel

This is often the deciding factor. If you want to keep seeing any doctor who takes Medicare — including specialists in Nashville or Murfreesboro, or providers when you travel — Original Medicare with a Medigap plan gives you that flexibility.

If you're comfortable using a plan's network and getting referrals when needed, Medicare Advantage can work well, especially if your regular doctors are already in the plan. Always check the current provider directory before you enroll.

What's available around Shelbyville

Shelbyville is in Bedford County, where Medicare beneficiaries can generally choose from multiple Medicare Advantage plans offered by several carriers, along with a wide selection of stand-alone Part D drug plans. Availability is set at the county level and can change each year, so use the Plan Finder at medicare.gov to see the current-year list for your ZIP code.

Timing and the switch question

Two dates matter most:

• Annual Enrollment Period: Oct. 15 – Dec. 7. You can join, drop, or switch Medicare Advantage and Part D plans. Changes take effect Jan. 1.
• Medicare Advantage Open Enrollment: Jan. 1 – March 31. If you're already in an Advantage plan, you can switch to another one or return to Original Medicare (and add a Part D plan).

One important caution: moving from Medicare Advantage back to Original Medicare + Medigap later on isn't always simple. Outside of certain guaranteed-issue windows, Medigap insurers in Tennessee can use medical underwriting, which means they can charge more or turn you down based on health. That's why many people give the first choice extra thought when they're new to Medicare.

A quick note on IRMAA

Higher-income beneficiaries pay more for Part B and Part D through IRMAA (Income-Related Monthly Adjustment Amount). For 2026, IRMAA generally starts above $109,000 in income for a single filer (higher thresholds for couples). This applies no matter which structure you choose.