One of the first questions patients ask when they learn about gel injections for knee arthritis is straightforward: how much will this cost? It is a reasonable question, and unfortunately, the answer is rarely simple. The cost of knee gel injections depends on your insurance coverage, which formulation is used, whether the procedure is performed in a clinic or hospital setting, and where you live.
What I can tell you after more than a decade of performing these procedures at Joint Relief Institute — and after more than 400,000 injections across our three Chicago-area locations — is that knee gel injections are far more affordable than most patients expect, particularly when insurance or Medicare is involved. For many patients, the out-of-pocket cost is a fraction of what they would spend on years of over-the-counter pain medications, physical therapy copays, or the eventual surgical alternative.
This article breaks down the real costs, explains what Medicare and private insurance typically cover, and provides practical guidance on minimizing your out-of-pocket expense.
What Do Knee Gel Injections Cost?
The cash price for a full course of knee gel injections — meaning the complete treatment without any insurance applied — generally falls between $800 and $2,000 per knee. That range exists because of the variety of FDA-approved hyaluronic acid formulations available, each with different pricing structures [1].
Single-injection formulations (such as Durolane, Gel-One, or Monovisc) deliver the full treatment in one visit. The syringe itself costs more, but you avoid multiple office visits. Cash prices for single-injection products typically range from $1,000 to $2,000.
Three-injection series (such as Euflexxa, Orthovisc, or Supartz FX) spread the treatment across three weekly visits. Individual syringe costs are lower, but total treatment cost including office visit fees is generally comparable. Cash prices typically range from $800 to $1,500 for the full course.
Five-injection series (such as Hyalgan or Supartz) require five weekly visits and tend to fall at the lower end of the cost range per syringe, though office visit fees add up.
These are cash prices — what you would pay if you walked in without any insurance. The vast majority of patients pay substantially less because most insurance plans and Medicare cover viscosupplementation [2].
Clinic vs. Hospital Pricing
Where the injection is performed matters more than most patients realize. The same hyaluronic acid product can cost two to three times more when administered in a hospital outpatient department compared to a physician’s office or independent clinic. This is due to facility fees that hospitals add to the procedure cost [3].
At Joint Relief Institute, all injections are performed in our clinic settings — Orland Park, Oak Brook, and Glenview — which means patients benefit from physician-office pricing rather than hospital-outpatient pricing. This distinction can save hundreds of dollars per treatment course, even with insurance.
Does Insurance Cover Gel Injections for Knees?
Yes. Most major private insurance plans cover viscosupplementation as a medically necessary treatment for knee osteoarthritis. This includes carriers such as Blue Cross Blue Shield, Aetna, UnitedHealthcare, Cigna, and Humana, among others [2].
Insurance coverage for knee gel injections typically requires:
- A confirmed diagnosis of knee osteoarthritis based on clinical examination and imaging (X-ray showing joint space narrowing or cartilage loss)
- Evidence that conservative treatments have been attempted — most insurers want documentation that you have tried NSAIDs, physical therapy, or cortisone injections before approving viscosupplementation
- Prior authorization in some cases — certain insurers require your provider to submit documentation before the procedure is approved
When covered by insurance, most patients pay only their standard specialist copay (typically $20 to $50 per visit) or a coinsurance percentage after meeting their deductible. The specific amount depends on your plan design.
What If Your Insurance Denies Coverage?
Denials do happen, though they are less common than patients fear. The most frequent reasons for denial are:
- Insufficient documentation of conservative treatment failure. The fix is straightforward: ensure your referring physician documents your treatment history.
- Missing prior authorization. This is an administrative issue, not a medical one. A re-submission with proper authorization usually resolves it.
- Specific plan exclusions. Some plans — particularly certain HMO configurations — exclude viscosupplementation. This is uncommon but worth checking before scheduling.
At Joint Relief Institute, we verify insurance coverage before scheduling your procedure. If there is a coverage issue, we identify it before you arrive, not after.
Medicare Coverage for Knee Gel Injections
Medicare Part B covers viscosupplementation for knee osteoarthritis, and this is one of the most common ways patients receive gel injections [4]. Here is how the coverage works:
What Medicare Part B covers: Viscosupplementation is classified as an outpatient medical procedure. Once you have met your annual Part B deductible ($257 in 2026), Medicare pays 80% of the Medicare-approved amount for the procedure.
What you pay: The remaining 20% coinsurance is your responsibility. For a gel injection visit, this typically translates to a relatively modest out-of-pocket amount for each injection session.
Medigap (Medicare Supplement) policies: If you carry a Medigap plan — such as Plan F, Plan G, or Plan N — your supplement policy often covers some or all of the 20% coinsurance. Many Medicare patients with supplement coverage pay little to nothing out of pocket for knee gel injections [5].
Medicare Advantage (Part C): Coverage varies by plan. Most Medicare Advantage plans cover viscosupplementation, but copay amounts, prior authorization requirements, and network restrictions differ. Check with your specific plan.
What Medicare requires: Medicare does not require an extensive prior authorization process for viscosupplementation in most cases, but the treating physician must document a diagnosis of knee osteoarthritis and that the patient meets standard medical necessity criteria [4].
For a more detailed breakdown of Medicare-specific coverage, see our guide on Medicare coverage for knee gel injections.
What Affects the Cost?
Several factors create the wide price range patients encounter when researching gel injection costs:
1. Single vs. Multi-Injection Formulations
As noted above, the choice of hyaluronic acid product significantly affects both the per-syringe cost and the total cost including office visits. There is no clinical evidence that more expensive formulations produce superior outcomes for all patients [6]. The choice should be based on your specific joint condition, treatment history, and physician recommendation — not price alone.
2. Geographic Variation
Healthcare costs vary by region. Procedures in major metropolitan areas tend to cost more than in suburban or rural settings. Medicare reimbursement rates also vary by geographic locality, which affects what patients in different areas pay.
3. Facility Type
As discussed, hospital outpatient departments charge facility fees that physician offices do not. The same injection with the same product can cost significantly more in a hospital setting. Always ask whether the procedure will be performed in a physician’s office or a hospital outpatient department.
4. Number of Knees
If both knees require treatment, the cost doubles — though some practices and insurance plans offer efficiencies when treating both knees in the same visit series. At Joint Relief Institute, we frequently treat both knees and can coordinate scheduling to minimize visit frequency.
5. Insurance Plan Design
Your specific copay, coinsurance percentage, deductible status, and out-of-pocket maximum all affect what you ultimately pay. Two patients with the same insurance carrier can have very different cost experiences based on their plan tier.
How to Minimize Your Out-of-Pocket Cost
There are several practical steps patients can take to reduce their gel injection costs:
Verify insurance coverage before scheduling. This is the single most important step. Confirm that viscosupplementation is covered under your plan, whether prior authorization is required, and what your expected cost-share will be. At Joint Relief Institute, our insurance team handles this verification before your first appointment.
Choose an office-based setting over a hospital. If you have a choice between receiving injections in a physician’s office versus a hospital outpatient department, the office setting will almost always cost less due to the absence of facility fees [3].
Ask about single-injection options. If your insurance charges a copay per visit rather than per treatment course, a single-injection formulation may reduce your total cost by eliminating two to four additional office visit copays.
Check your deductible status. If you have already met your annual deductible through other medical expenses, your out-of-pocket cost for gel injections may be lower than expected. Timing your treatment after meeting your deductible can save money.
Review your Medicare Supplement policy. If you are on Medicare, confirm whether your Medigap plan covers the 20% Part B coinsurance. Many supplement plans cover this entirely [5].
Ask about both knees in one course. If both knees need treatment, treating them during the same series of visits can reduce scheduling burden and time off work, even if the per-knee cost remains the same.
Is the Cost Worth It?
This is the question beneath the question, and it deserves an honest answer based on what the alternatives actually cost — not just in dollars, but in time, side effects, and quality of life.
Compare to Ongoing Medication Costs
Patients with knee osteoarthritis commonly spend $50 to $200 per month on over-the-counter pain medications (acetaminophen, NSAIDs like ibuprofen or naproxen) and topical treatments. Over a year, that is $600 to $2,400 — comparable to or exceeding the cost of a single gel injection course. And unlike gel injections, long-term NSAID use carries risks of gastrointestinal bleeding, kidney damage, and cardiovascular events [7].
Compare to Physical Therapy Copays
A typical physical therapy prescription involves two to three visits per week for six to eight weeks. With a $30 to $50 copay per visit, that is $360 to $1,200 per PT course — and many patients require multiple courses. Physical therapy is valuable, but it is not free, and for moderate-to-severe osteoarthritis, it is rarely sufficient as a standalone treatment.
Compare to Surgery Costs
Total knee replacement surgery costs $30,000 to $50,000 or more, even with insurance contributing significantly [8]. Beyond the financial cost, surgery requires general anesthesia, a hospital stay, three to six months of rehabilitation, weeks to months of missed work, and carries risks including infection, blood clots, and implant complications.
A gel injection takes 20 minutes. You drive yourself home. You resume normal activities immediately. Even patients who receive annual gel injections for five or more years spend a small fraction of the surgical cost while maintaining their quality of life.
The Real Calculation
The relevant question is not whether gel injections cost money. Every treatment does. The question is whether gel injections provide sufficient pain relief and functional improvement to justify their cost relative to the alternatives. For the majority of patients with mild-to-moderate knee osteoarthritis — and many patients with advanced disease — the clinical evidence and real-world outcomes strongly support that they do [6].
For a detailed look at what the research says about gel injection effectiveness, see our guide on the benefits of knee gel injections.
Next Steps: Find Out What You Will Pay
At Joint Relief Institute, we believe financial uncertainty should never prevent a patient from exploring treatment options. That is why we verify your insurance coverage and explain your expected costs before you commit to anything.
Here is what happens when you call:
- We verify your insurance benefits — including prior authorization requirements, copay amounts, and deductible status
- We explain your expected out-of-pocket cost clearly, before your first visit
- We schedule your evaluation at the most convenient of our three locations: Orland Park, Oak Brook, or Glenview
- No surprise bills — you know what to expect financially before treatment begins
We have treated over 400,000 patients across our three Chicago-area locations. Most major insurance plans and Medicare are accepted.
Call (800) 238-9307 today to verify your coverage and schedule your evaluation.
Sources
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American Academy of Orthopaedic Surgeons. Viscosupplementation Treatment for Arthritis. OrthoInfo, 2024. https://orthoinfo.aaos.org/en/treatment/viscosupplementation-treatment-for-arthritis/
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Bhandari M, et al. Clinical and Economic Burden of Revision Knee Arthroplasty. Clinical Medicine Insights: Arthritis and Musculoskeletal Disorders, 2012. https://doi.org/10.4137/CMAMD.S10859
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Medicare Payment Advisory Commission. Report to the Congress: Medicare Payment Policy (Hospital Outpatient vs. Physician Office Payment Differentials). MedPAC, 2024. https://www.medpac.gov/
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Centers for Medicare & Medicaid Services. Medicare Coverage of Viscosupplementation. CMS.gov, 2025. https://www.cms.gov/medicare-coverage-database
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Centers for Medicare & Medicaid Services. Choosing a Medigap Policy: A Guide to Health Insurance for People with Medicare. Medicare.gov, 2026. https://www.medicare.gov/supplements-other-insurance/how-to-compare-medigap-policies
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Bannuru RR, et al. Comparative Effectiveness of Pharmacologic Interventions for Knee Osteoarthritis: A Systematic Review and Network Meta-analysis. Annals of Internal Medicine, 2015;162(1):46-54. https://doi.org/10.7326/M14-1231
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Kolasinski SL, et al. 2019 American College of Rheumatology/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee. Arthritis Care & Research, 2020;72(2):149-162. https://doi.org/10.1002/acr.24131
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Kamaruzaman H, et al. The Economic Burden of Total Knee Replacement: A Systematic Review of Economic Evaluations. Value in Health, 2021. https://doi.org/10.1016/j.jval.2021.04.1282
