Dr. Marc Asselmeier, M.D.
Contact & Location
630-469-9200
Glen Ellyn, IL 60137
About Dr. Asselmeier
Dr. Marc Asselmeier is a board-certified orthopedic surgeon practicing in Glen Ellyn, Illinois. A Medicare provider since 2005, Dr. Asselmeier performed 59 Medicare-verified knee replacements (#78 in Illinois) and 39 shoulder replacements in the latest annual CMS data, for a combined total of 98 procedures.
In Illinois, Dr. Asselmeier performs near the state average in knee (59 vs 50), above the state average in shoulder (39 vs 27).
Dr. Asselmeier's reported Medicare volume is split between knee replacements (59 cases) and shoulder replacements (39 cases).
Dr. Asselmeier is the only orthopedic surgeon in Glen Ellyn represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.
Medicare records for Dr. Asselmeier extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 44 to 98 in the most recent data, a 123% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Asselmeier's 59 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement | Shoulder Replacement |
|---|---|---|
| 2013 | 29 | 15 |
| 2014 | 30 | 19 |
| 2015 | 33 | 22 |
| 2016 | 33 | 24 |
| 2017 | 20 | 20 |
| 2018 | 44 | 31 |
| 2019 | 47 | 23 |
| 2020 | 48 | 21 |
| 2021 | 42 | 19 |
| 2022 | 51 | 21 |
| 2023 | 45 | 23 |
| 2024 | 59 | 39 |
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. Asselmeier Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Asselmeier's Medicare-recorded procedure volume has trended upward over 12 years, increasing 123% from 44 procedures in 2013 to 98 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.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
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. Asselmeier
How does Dr. Asselmeier's procedure volume compare to other Illinois surgeons?
Dr. Asselmeier has performed 98 Medicare-verified joint replacement procedures. This is in line with the Illinois average of 69 procedures per surgeon. Dr. Asselmeier ranks #80 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Asselmeier perform?
Dr. Asselmeier's Medicare data shows procedures in knee replacement (59 cases) and shoulder replacement (39 cases).
Where is Dr. Asselmeier's practice located?
Dr. Asselmeier practices in Glen Ellyn, Illinois. The office is located at 430 Pennsylvania Ave, Glen Ellyn, IL 60137. Patients in the surrounding area can consult Dr. Asselmeier for joint replacement evaluation.
What does the Medicare data for Dr. Asselmeier 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. Asselmeier's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 98 procedures shown here.
Has Dr. Asselmeier's procedure volume changed over time?
Yes. Dr. Asselmeier's Medicare-recorded volume has increased from 44 procedures in 2013 to 98 in the most recent data, a 123% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 98 procedures in 2024.
Does Dr. Asselmeier perform more than one type of joint replacement?
Yes. Dr. Asselmeier's Medicare data shows procedures in knee replacement (59 cases), shoulder replacement (39 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Asselmeier affiliated with?
According to CMS facility affiliation data, Dr. Asselmeier is affiliated with Edward Hospital, Uchicago Medicine Adventhealth La Grange, Elmhurst Memorial Hospital.
What are the quality ratings for hospitals where Dr. Asselmeier practices?
Edward Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Uchicago Medicine Adventhealth La Grange (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Elmhurst Memorial 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.
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.