What a Knee Replacement Costs Georgia Retirees on Medicare in 2026

A knee replacement on Medicare costs a Georgia retiree anywhere from about $1,736 to just over $2,100 out of pocket in 2026.

Those two numbers aren’t measuring the same thing, though.

The $1,736 low end is the Part A hospital deductible by itself, and the surgeon’s own bill still lands separately, on top of it.

The $2,100 high end is an outpatient total that already has the surgeon’s Part B coinsurance folded in.

Add that same surgeon’s coinsurance to the inpatient deductible instead, and the honest worst case for an inpatient stay can run higher than the outpatient figure ever does.

The swing comes down to one thing: Inpatient or outpatient.

That single classification decides whether Medicare Part A or Part B pays the claim.

Part A’s charge is a flat $1,736 deductible for the entire hospital stay.

Part B works differently, charging a share of whatever the facility bills, on top of its own deductible.

Even the type of outpatient facility, a full hospital or a dedicated surgery center, moves that number, and not always in the direction you’d expect.

Note: This is general information, not financial or insurance advice. Medicare costs and plan rules are subject to change, so confirm your own numbers with Medicare or your plan.

Why Inpatient vs. Outpatient Status Decides the Bill

A knee replacement’s Medicare bill starts with one word: Inpatient or outpatient.

Everything else follows from it.

The Centers for Medicare & Medicaid Services (CMS) took total knee replacement off its official inpatient-only list back in 2018, opening the door to outpatient billing for the first time.

That didn’t make every knee replacement an outpatient case.

Many Georgia retirees still qualify as inpatient.

It comes down to the surgeon’s own expectation for how long you’ll need hospital care, not the kind of operation.

What Part A Covers for an Inpatient Knee Replacement

Medicare Part A covers a knee replacement whenever the hospital stay counts as inpatient.

The Part A deductible for 2026 runs $1,736 per benefit period.

That’s the entire deductible.

That single charge covers the entire hospital stay for a routine joint replacement, well inside the 60 days Part A allows before any extra daily coinsurance would even apply.

The surgeon and anesthesiologist still bill separately, no matter which part of Medicare covers the hospital stay.

Their fees fall under Part B, with its own 20% coinsurance on top of the facility charge.

What Part B Covers for Outpatient Surgery

Medicare Part B covers a knee replacement whenever the surgery counts as outpatient, whether that’s a hospital’s outpatient department or a freestanding surgical center.

The Part B deductible for 2026 is $283.

Meet it, and Medicare pays 80% of the Medicare-approved amount for the facility charge.

You pay the other 20%.

That coinsurance is where the math gets interesting because 20% of a hospital’s outpatient bill and 20% of a surgery center’s bill aren’t the same number.

Hospital Outpatient vs. Surgery Center Costs in Georgia

A knee replacement's price tag shifts again once you know which kind of outpatient facility performs it.

Medicare's 2026 payment rates price a knee replacement at about $10,552 in total at a freestanding ambulatory surgical center, versus about $14,275 at a hospital outpatient department.

The surgical center costs less.

But the patient's own share doesn't move in a straight line with that gap, landing around $2,109 at the surgical center and about $1,967 at the hospital outpatient department, since Medicare doesn't apply the same coinsurance formula in both settings.

Metro Atlanta's Northside Hospital runs four dedicated surgery centers, in Sandy Springs, Canton, Cumming, and Buford, built just for outpatient hip and knee replacements instead of a traditional hospital floor.

Ask your own Georgia hospital or surgeon's office which setting they're billing under, before surgery day, not after.

How Medicare Advantage Changes the Math

Medicare Advantage plans replace Original Medicare's fixed percentages with their own copays and coinsurance for a knee replacement.

Federal rules still cap what a plan can charge, though.

The mandatory 2026 in-network out-of-pocket limit is $9,250 for the year, covering every claim you file, not just the surgery.

The exact copay for your own surgery depends entirely on the plan you picked during open enrollment, so two Georgia neighbors on two different Medicare Advantage plans can pay very different amounts for the same operation.

The other catch?

Nearly all Medicare Advantage enrollees, 97% by one recent count, are in plans that require prior authorization for an inpatient hospital stay, and a knee replacement is no exception.

Skip that step, and the plan can deny the claim entirely, leaving you to appeal a bill that should have been routine.

What a Medigap Plan Covers

A Medigap policy changes the math again for anyone still on Original Medicare instead of Medicare Advantage.

Medigap Plan G pays the Part A deductible in full, plus all of the Part A and Part B coinsurance on a knee replacement.

Just the deductible remains.

A Georgia retiree carrying Plan G owes only the Part B deductible, $283 in 2026, toward the entire surgery, facility fee and surgeon's bill included.

Plan N works almost as well, covering the same Part A costs, though it can leave a small copay on some office visits.

Premium surcharges, drug coverage gaps, and dozens of other Medicare costs work the same way, buried in fine print many Georgia retirees never see coming until the bill arrives.

Timing Your Surgery Around Your Deductible

Georgia retirees scheduling elective knee surgery have one lever nobody mentions: Timing.

Book the surgery after you've already met your Part B deductible for other care that year.

It won't apply twice.

FAQ

Quick answers Georgia retirees ask most about what a knee replacement costs on Medicare.

There's no fluff here.

Does Medicare cover knee replacement surgery?

Yes. Medicare Part A covers it when the hospital stay counts as inpatient, and Part B covers it when the surgery counts as outpatient, whether that's at a hospital outpatient department or a surgical center. Which part pays comes down to how your surgeon and hospital classify the stay.

Is knee replacement still on Medicare's inpatient-only list?

No. CMS removed total knee replacement from the inpatient-only list in 2018, so it can now be billed as outpatient surgery. Many Georgia retirees still qualify as inpatient, based on the two-midnight rule and their surgeon's own expectations.

How much does Medicare Advantage cost for a knee replacement?

It depends entirely on the plan. Every Medicare Advantage plan sets its own copays and coinsurance, but federal rules cap 2026 in-network out-of-pocket spending at $9,250 for the year. Confirm your plan's own costs and prior-authorization rules before you schedule surgery.

Does Medigap cover knee replacement costs?

A Medigap Plan G policy pays the Part A deductible and all of the Part A and Part B coinsurance on a knee replacement. That leaves only the Part B deductible, $283 in 2026, as your out-of-pocket cost.

Is it cheaper to have a knee replacement at a surgical center or a hospital?

The total bill runs lower at a freestanding surgical center, around $10,552 versus about $14,275 at a hospital outpatient department in 2026. Your own out-of-pocket share can land close either way, so ask your facility for its own numbers.