Without insurance, a total knee replacement in the US typically runs $30,000 to $60,000, with published figures stretching from about $15,000 at an ambulatory surgery centre to $70,000 or more at a hospital. That spread is not noise. It reflects genuine, controllable decisions — and two legal rights that most uninsured patients never use.
Before any of it, one question is worth settling: is surgery actually the right step yet? Knee replacement is usually appropriate only after conservative treatment has been tried, so it is worth reading what the evidence says about treating knee osteoarthritis and how the condition actually progresses before committing $35,000.
Where the Money Goes
| Component | Typical range |
|---|---|
| Facility fee | $15,000–$40,000 |
| Surgeon | $5,000–$10,000 |
| Implant hardware | $3,000–$12,000 |
| Anaesthesia | $2,000–$4,000 |
| Physical therapy (18–36 sessions) | $1,000–$5,000 |
The facility fee is the biggest single line, which is why where you have the operation matters more than anything else within your control.
Note that physical therapy is billed separately and is the most commonly underestimated cost. So is the risk of complications: infection or implant failure can add anywhere from $15,000 to $85,000, which is the reason price should never be the only criterion.
⭐ Two Rights You Almost Certainly Have
These matter more than any negotiating tip, because they are enforceable rather than discretionary.
1. A written Good Faith Estimate
Under the No Surprises Act, if you are uninsured or choosing not to use insurance, providers must give you a written estimate of expected charges before a scheduled procedure. Ask for one that bundles surgeon, anaesthesia, facility, implant and the 90-day post-operative period — not just the facility line.
If the final bill comes in substantially above the estimate, there is a dispute process. An estimate you never requested cannot help you later.
2. Charity care at a nonprofit hospital
This is the most under-used lever in American healthcare. Nonprofit hospitals are required to run financial assistance programmes as a condition of their federal tax-exempt status. Many offer 50% to 100% reductions for patients below roughly 300–400% of the federal poverty level — which is a considerably higher income threshold than most people assume disqualifies them.
You have to ask. Hospitals are not required to volunteer it, and the application is usually buried on the billing page. Ask for the “financial assistance policy” by name, before surgery if possible.
If your income is low enough to qualify for charity care, it is also worth checking whether you qualify for Medicaid, which has no open enrollment period and can be applied for at any time.
The Single Biggest Cost Lever: Where You Have It
An ambulatory surgery centre typically charges $15,000 to $30,000 for a total knee replacement. A hospital inpatient stay runs $30,000 to $60,000 or more. That is a $10,000 to $20,000 swing for the same operation.
This became possible because CMS removed total knee arthroplasty from the inpatient-only list in 2018, and outpatient joint replacement has grown steadily since. Suitable candidates are generally healthier patients without significant other conditions, who can go home the same day.
Ask your surgeon directly whether an ambulatory surgery centre is clinically appropriate for your case. It is a medical question before it is a financial one — but if the answer is yes, it is the largest saving available.
Geography matters almost as much. Two hospitals in the same metro area routinely publish cash prices differing by a factor of three or more.
How to Actually Compare Prices
Since 1 January 2021, federal hospital price transparency rules have required every hospital to publish its standard charges online, including the discounted cash price it accepts. Compliance is uneven but the files exist.
- Get the CPT code from your surgeon — 27447 for a total knee replacement, 27446 for a partial. Comparing prices without the code produces meaningless numbers.
- Look up that code in each facility’s published file, and note the cash price specifically rather than the list charge.
- Call two or three facilities and ask for the self-pay or cash rate. Discounts of 20% to 60% off list are routine for upfront payment.
- Ask whether the quote is a bundle. A facility price that excludes the surgeon, anaesthesia and implant is not comparable to one that includes them. Some centres offer genuine all-inclusive flat-fee joint replacement.
- Ask what happens if there is a complication — whether the bundle covers readmission, and for how long.
For a reference point on what a reasonable price looks like, the Medicare procedure price lookup shows national average Medicare payments. Medicare pays roughly $12,000 to $14,000 to the hospital for an inpatient knee replacement. A cash quote several times that figure is worth questioning.
If You Already Have the Bill
Bills are negotiable after the fact, and errors are common.
- Request an itemised bill rather than a summary. Duplicate implant charges, incorrect complication coding, and unexplained supply fees are the usual findings.
- Apply for financial assistance even after treatment. Charity care policies frequently allow retrospective applications.
- Ask for the self-pay rate to be applied retroactively, and offer a lump sum at a reduced figure. Billing departments handle this routinely.
- Do this before it reaches collections, where your leverage drops sharply.
Financing, Honestly Assessed
Options exist, and they are not equal.
- Hospital payment plans — often interest-free, and usually the best option. Ask first.
- HSA or FSA funds — pre-tax dollars for a qualifying medical expense. If you are on a bronze or catastrophic marketplace plan, note that all such plans became HSA-compatible in 2026.
- Medical credit cards with promotional 0% periods — read the terms carefully. Deferred interest products can charge the full accrued interest retroactively if the balance is not cleared in time.
Also worth checking before you borrow: if you are approaching 65, Medicare covers knee replacement, and the out-of-pocket cost with Original Medicare is the Part A deductible of $1,736 in 2026 rather than tens of thousands. If a surgery can safely wait a few months and you are close to eligibility, that arithmetic is worth doing.
Similarly, if you are uninsured and the surgery is not urgent, enrolling in marketplace coverage during open enrollment may cost far less than paying cash. Even a high-deductible plan caps your exposure at the out-of-pocket maximum, which is $10,600 for an individual in 2026 — well below most cash quotes.
Medical Tourism: The Part Most Guides Skip
The price difference is real. Accredited facilities in India and Mexico advertise total knee replacement well below US prices, and some patients have good outcomes.
The risk is not the surgery. It is what happens afterwards. Knee replacement recovery runs 6 to 12 weeks of structured physical therapy, and complications — infection, clots, implant problems — tend to appear after you have flown home. At that point you are back in the US system, paying full price for revision surgery, with a surgeon who did not perform the original operation and may not have the implant records.
Revision surgery costs substantially more than the original. A single complication can erase the entire saving and then some.
If you are seriously considering it, the questions that matter are: who provides follow-up care once you are home, what happens if there is a complication, whether the implant is a brand US surgeons can service, and whether the CDC’s travellers’ health guidance on medical tourism raises concerns for your destination. Domestic travel to a lower-cost state carries none of these problems and often captures much of the saving.
Frequently Asked Questions
Typically $30,000 to $60,000 in the US, with published figures ranging from about $15,000 at an ambulatory surgery centre to $70,000 or more at a hospital. The facility fee is the largest component, which is why where you have the operation drives the price more than any other factor you control.
Substantially. An ambulatory surgery centre typically charges $15,000 to $30,000 against $30,000 to $60,000 for a hospital inpatient stay — a swing of $10,000 to $20,000 for the same operation. CMS removed total knee replacement from the inpatient-only list in 2018, so outpatient surgery is now routine for suitable candidates. Ask your surgeon whether it is clinically appropriate for you, because that is a medical question first.
Possibly. Nonprofit hospitals are required to run financial assistance programmes as a condition of their federal tax-exempt status, and many offer 50% to 100% reductions for patients below roughly 300% to 400% of the federal poverty level. You have to ask for the financial assistance policy by name — hospitals rarely volunteer it, and applications are often accepted after treatment as well as before.
A written estimate of expected charges that providers must give uninsured and self-pay patients before a scheduled procedure, under the No Surprises Act. Ask for one that bundles surgeon, anaesthesia, facility, implant and the 90-day post-operative period rather than the facility fee alone. If the final bill comes in substantially higher, there is a dispute process — but only if you obtained the estimate.
Often, yes, if the surgery can wait. Even a high-deductible marketplace plan caps your exposure at the out-of-pocket maximum, which is $10,600 for an individual in 2026 — well below most cash quotes. If you are near 65, Medicare covers knee replacement and the Original Medicare inpatient cost is the Part A deductible of $1,736. Both are worth calculating before borrowing tens of thousands of dollars.
The price difference is real, but the risk is not in the surgery — it is in what happens afterwards. Recovery runs 6 to 12 weeks of physical therapy, and complications tend to appear once you are home, at which point you are paying full US price for revision surgery with a surgeon who did not perform the original operation. Revision costs far more than the original, so a single complication can erase the saving. Travelling to a lower-cost US state captures much of the benefit without those problems.
Physical therapy is the biggest one — 18 to 36 sessions billed separately from the surgery. Pre-operative imaging and testing, follow-up visits, and any assistive equipment are also usually separate. And complications such as infection or implant failure can add $15,000 to $85,000, which is why the cheapest quote is not automatically the right choice.
Sources
- CMS — Hospital Price Transparency
- CMS — No Surprises Act and Good Faith Estimates
- Medicare — Procedure price lookup
- CDC — Medical tourism guidance for travellers
Related reading: Knee osteoarthritis: symptoms, causes and treatment | Knee braces for osteoarthritis | ACA metal tiers explained | Medicare explained
Written and fact-checked by the HealthCoachJP editorial team. This article describes United States healthcare pricing and is general information, not medical, financial or insurance advice, and not a recommendation of any facility, surgeon or financing product. Prices vary enormously by facility, market and individual case, and the ranges here are indicative rather than quotes. Whether surgery is appropriate, and whether an outpatient setting is safe for you, are medical decisions for a qualified surgeon. Last updated: August 2026. See our sourcing policy.
