Dr. Aaron Bare, M.D.
Contact & Location
630-225-2663
Warrenville, IL 60555
Dr. Bare performs more shoulder replacement procedures than 97% of orthopedic surgeons in Illinois, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #2 of 80 ranked shoulder surgeons in Illinois.
About Dr. Bare
Practice. Dr. Aaron Bare is a board-certified orthopedic surgeon practicing in Warrenville, Illinois. The latest annual CMS data records 77 shoulder replacements and 33 knee replacements, 110 procedures in all. That is #2 in Illinois for shoulder replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 11 years. Volume rose from 11 procedures a year to 110, up 900%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 77 procedures is more than 2x the national average of 29. That is #93 nationally.
Local context. Warrenville has 4 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement | Shoulder Replacement |
|---|---|---|
| 2013 | 11 | 0 |
| 2014 | 0 | 0 |
| 2015 | 33 | 14 |
| 2016 | 32 | 22 |
| 2017 | 23 | 37 |
| 2018 | 30 | 35 |
| 2019 | 36 | 52 |
| 2020 | 26 | 28 |
| 2021 | 31 | 48 |
| 2022 | 28 | 69 |
| 2023 | 30 | 71 |
| 2024 | 33 | 77 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 29% to 37% for shoulder replacement, 23% to 28% for knee replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Bare Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Bare's Medicare-recorded procedure volume has trended upward over 11 years, increasing 900% from 11 procedures in 2013 to 110 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 Shoulder Replacement
If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:
A 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.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Bare
How does Dr. Bare's procedure volume compare to other Illinois surgeons?
Dr. Bare has performed 110 Medicare-verified joint replacement procedures. This is significantly above the Illinois average of 69 procedures per surgeon. Dr. Bare ranks #66 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Bare perform?
Dr. Bare's Medicare data shows procedures in shoulder replacement (77 cases) and knee replacement (33 cases).
How experienced is Dr. Bare with shoulder replacement surgery?
Dr. Bare ranks #2 in Illinois for shoulder replacement with 77 Medicare-verified procedures. This high ranking among 316 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Bare in Warrenville?
Yes. There are 4 orthopedic surgeons in Warrenville 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. Bare represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 29% to 37% for shoulder replacement, 23% to 28% for knee replacement, which puts Dr. Bare's total volume across all insurers at roughly 330 to 410 procedures against the 110 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Bare's procedure volume changed over time?
Yes. Dr. Bare's Medicare-recorded volume has increased from 11 procedures in 2013 to 110 in the most recent data, a 900% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 110 procedures in 2024.
Does Dr. Bare perform more than one type of joint replacement?
Yes. Dr. Bare's Medicare data shows procedures in shoulder replacement (77 cases), knee replacement (33 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Bare affiliated with?
According to CMS facility affiliation data, Dr. Bare is affiliated with Northwestern Medicine Central Dupage Hospital, Northwestern Medicine Delnor Community Hospital, Northwestern Medicine Mchenry Hospital, Northwestern Medicine Kishwaukee Hospital, Palos Community Hospital.
How does Dr. Bare compare to other orthopedic surgeons in Warrenville?
Among the 4 orthopedic surgeons in Warrenville, Dr. Bare ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Warrenville has 224 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Bare practices?
Northwestern Medicine Central Dupage Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwestern Medicine Delnor Community Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwestern Medicine Mchenry Hospital (5 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 Warrenville, Illinois
Dr. Bare's 110 Medicare procedures are below the Warrenville average of 143. The table below compares verified procedure volumes for orthopedic surgeons practicing in Warrenville.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. William Sterba | 224 | Hip, Knee |
| Dr. Edward Sutter | 122 | Hip, Knee |
| Dr. Charles Lupo | 116 | Hip, Knee |
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.