Dr. Troy Karlsson, M.D.
Contact & Location
630-790-1872
Naperville, IL 60540
About Dr. Karlsson
Dr. Troy Karlsson is a board-certified orthopedic surgeon practicing in Naperville, Illinois. A Medicare provider since 2005, Dr. Karlsson performed 52 Medicare-verified knee replacements (#90 in Illinois) and 23 hip replacements in the latest annual CMS data, for a combined total of 75 procedures.
In Illinois, Dr. Karlsson performs near the state average in knee (52 vs 50), below the state average in hip (23 vs 39).
Dr. Karlsson's reported Medicare volume is split between knee replacements (52 cases) and hip replacements (23 cases).
Beyond general orthopedic surgery, Dr. Karlsson holds additional credentials in Sports Medicine, reflecting subspecialty training that may benefit patients with complex joint conditions.
Naperville is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Naperville area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Karlsson extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 48 to 75 in the most recent data, a 56% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Karlsson's 52 verified procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 15 | 33 |
| 2014 | 12 | 34 |
| 2015 | 19 | 45 |
| 2016 | 15 | 39 |
| 2017 | 22 | 50 |
| 2018 | 23 | 56 |
| 2019 | 14 | 61 |
| 2020 | 26 | 41 |
| 2021 | 15 | 37 |
| 2022 | 21 | 53 |
| 2023 | 13 | 53 |
| 2024 | 23 | 52 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.
How Dr. Karlsson Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Karlsson's Medicare-recorded procedure volume has trended upward over 12 years, increasing 56% from 48 procedures in 2013 to 75 in the most recent data.
Hospital Affiliations & Quality
Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.
Patient Resources: Preparing for Knee Replacement
If you are considering knee replacement surgery, these evidence-based guides can help you prepare and recover:
An overview of current surgical approaches including robotic-assisted and minimally invasive techniques, implant options, and expected outcomes.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
Knee Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full knee replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Karlsson
How does Dr. Karlsson's procedure volume compare to other Illinois surgeons?
Dr. Karlsson has performed 75 Medicare-verified joint replacement procedures. This is in line with the Illinois average of 69 procedures per surgeon. Dr. Karlsson ranks #104 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Karlsson perform?
Dr. Karlsson's Medicare data shows procedures in knee replacement (52 cases) and hip replacement (23 cases).
Are there other orthopedic surgeons near Dr. Karlsson in Naperville?
Yes. There are 7 orthopedic surgeons in Naperville in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all Illinois surgeons.
What does the Medicare data for Dr. Karlsson represent?
The procedure counts shown are based on the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Karlsson's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 75 procedures shown here.
Has Dr. Karlsson's procedure volume changed over time?
Yes. Dr. Karlsson's Medicare-recorded volume has increased from 48 procedures in 2013 to 75 in the most recent data, a 56% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 79 procedures in 2018.
Does Dr. Karlsson perform more than one type of joint replacement?
Yes. Dr. Karlsson's Medicare data shows procedures in knee replacement (52 cases), hip replacement (23 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Karlsson affiliated with?
According to CMS facility affiliation data, Dr. Karlsson is affiliated with Edward Hospital.
How does Dr. Karlsson compare to other orthopedic surgeons in Naperville?
Among the 7 orthopedic surgeons in Naperville, Dr. Karlsson ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Naperville has 101 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Karlsson practices?
Edward Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Naperville, Illinois
Dr. Karlsson's 75 Medicare procedures are above the Naperville average of 67. The table below compares verified procedure volumes for orthopedic surgeons practicing in Naperville.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Andrew Kim | 101 | Hip, Knee |
| Dr. David Alfieri | 100 | Hip, Knee |
| Dr. Ryan Sullivan | 86 | Hip, Knee |
| Dr. Robert Burnett | 60 | Hip, Knee |
| Dr. John Lombardi | 39 | Hip, Knee |
| Dr. Zahab Ahsan | 11 | Shoulder |
Patient Resources & Verification
Research reviews, verify credentials, and check official quality data through these trusted sources:
Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.