Knee Replacement Surgery Cost in Illinois (2026)

Close to the national average · RPP 101.2 · IL

Illinois Average
$35,420
Typical Range
$20,240 – $50,600
National Average
$35,000
▲ +1.2% above national average

Knee Replacement Surgery in Illinois: What to Know

Illinois offers excellent options for knee replacement surgery. Rush University Medical Center in Chicago boasts a "High Performing" rating from U.S. News & World Report for knee replacement. For high-volume expertise, Midwest Orthopaedics at Rush performs up to 800 knee replacements annually, the most in Illinois. Silver Cross Hospital in New Lenox is a Blue Distinction Center, offering Mako™ robotic-arm assisted surgery, unique in Will & Grundy Counties. Northwestern Medicine also provides top-ranked orthopaedic programs across Chicagoland.

To potentially reduce costs, consider ambulatory surgery centers (ASCs) in Illinois, like those affiliated with Midwest Orthopaedics at Rush, for same-day procedures which often have lower infection rates and shorter stays. While Illinois's average cost is slightly above the national average, exploring options in neighboring states might also present savings. Verify current pricing directly with providers.

Estimated Cost Breakdown in Illinois

Illinois sits near the middle of the pack for knee replacement surgery pricing. The cost components typically split like this.

ComponentEstimated Range
Facility Fee $7,437 - $13,814
Surgeon Fee $7,437 - $13,814
Implants Supplies $3,718 - $6,907
Post Op Care $3,718 - $6,907
Anesthesia $2,479 - $4,605
Total Estimated Cost $20,240 – $50,600

Based on CMS Medicare data and regional price parities. Learn about our methodology →

Ranges adjusted for Illinois's regional price parity (101.2). See the national percentage breakdown →

Facility Costs in Illinois

You can get knee replacement surgery at hospitals or ambulatory surgery centers across Illinois. The table below shows real negotiated rates from CMS Medicare data — not sticker prices.

Facility City Negotiated Rate Medicare Payment Volume
Northshore University Healthsystem Evanston Hosp Evanston $12,946 $11,345 1,383
Uchicago Medicine Adventhealth La Grange La Grange $13,180 $11,578 1,238
Rush University Medical Center Chicago $13,176 $11,573 724
Carle Health Proctor Hospital Peoria $11,666 $10,064 649
Northwestern Memorial Hospital Chicago $13,218 $11,617 638
Advocate Lutheran General Hospital Park Ridge $12,898 $11,297 586
Northwestern Medicine Central Dupage Hospital Winfield $13,089 $11,486 519
Northwestern Medicine Mchenry Hospital Mchenry $13,003 $11,401 501
Sarah Bush Lincoln Health Center Mattoon $12,243 $10,642 492
Silver Cross Hospital And Medical Centers New Lenox $12,895 $11,294 427
Facility City Negotiated Rate Medicare Payment Volume
Northshore University Healthsystem Evanston Hosp Evanston $16,082 $13,916 470
Elmhurst Memorial Hospital Elmhurst $14,191 $11,676 401
Northwest Community Hospital 1 Arlington Heights $14,483 $11,641 230
Edward Hospital Naperville $14,849 $11,111 179
Good Samaritan Regional Hlth Center Mount Vernon $13,533 $11,366 163
Northwestern Memorial Hospital Chicago $20,669 $15,975 128
St Alexius Medical Center Hoffman Estates $14,925 $12,838 121
Sarah Bush Lincoln Health Center Mattoon $14,807 $11,188 105
Northwestern Medicine Mchenry Hospital Mchenry $15,314 $12,993 103
Rush University Medical Center Chicago $24,609 $18,049 99

Knee Replacement Surgery Cost in Neighboring States

Knee Replacement Surgery pricing in Illinois is typical nationally, though nearby states offer slightly lower rates.

Knee Replacement Surgery in Illinois: Common Questions

What should I expect to pay for knee replacement surgery in Illinois?
The average cost of knee replacement surgery in Illinois is $35,420. Prices typically range from $20,240 to $50,600, depending on the facility, provider, and your specific case.
Can I use insurance for knee replacement surgery in Illinois?
Most insurance plans cover knee replacement surgery when it's deemed medically necessary. You'll typically need pre-authorization from your insurer, and staying in-network with a Illinois provider will minimize your out-of-pocket share.
When can I return to work after knee replacement surgery?
Plan for 42 to 120 days of downtime after knee replacement surgery in Illinois. The first week is typically the most restrictive — after that, you'll gradually resume daily routines. Post-op expenses like prescriptions and follow-up visits in Illinois can add $1,771 to $3,542 to your total bill.
What payment options exist for knee replacement surgery in Illinois?
Many Illinois providers offer financing through medical credit companies like CareCredit or Prosper Healthcare Lending. You can also use HSA/FSA funds, negotiate a cash-pay discount (often 10-20% off), or ask about in-house payment plans that split the $35,420 cost into monthly installments.
How do I compare knee replacement surgery facilities in Illinois?
Start with case volume — facilities that perform more procedures generally have better outcomes. In Illinois, also compare hospital vs. ambulatory surgery center pricing (ASCs can be 30-50% cheaper) and check whether your insurance network includes the facility.
Can I save by getting knee replacement surgery in a neighboring state?
The math works out to about $3,290 in savings if you cross into Missouri for knee replacement surgery ($32,130 average vs. $35,420 in Illinois). The catch: you'll want a local doctor who can handle any post-op issues rather than driving back across state lines for complications.
Can Medicaid help pay for knee replacement surgery in Illinois?
Medicaid coverage for knee replacement surgery in Illinois depends on medical necessity. If your doctor documents that knee replacement surgery is required for your health, Illinois Medicaid may cover part or all of the cost. Pre-authorization is typically required. Contact Illinois's Medicaid office or your managed care plan for specific coverage details.

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