Dr. Christopher Mahr, M.D.
Contact & Location
773-631-7898
Park Ridge, IL 60068
Dr. Mahr performs more hip replacement procedures than 11% of orthopedic surgeons in Illinois, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #163 of 184 ranked hip surgeons in Illinois.
About Dr. Mahr
Practice. Dr. Christopher Mahr is a board-certified orthopedic surgeon practicing in Park Ridge, Illinois. The latest annual CMS data records 15 hip replacements. That is #163 in Illinois for hip replacement. A Medicare provider since 2005.
Trend. Medicare records run from 2014 to 2024, 10 years. Volume peaked at 33 in 2023 and stands at 15 now. Reporting changes and payer mix can both move that number.
National context. Among 4,542 hip replacement surgeons tracked nationally, 15 procedures is below the national average of 36. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Park Ridge has 6 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 | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 13 | 0 |
| 2015 | 0 | 15 |
| 2016 | 0 | 14 |
| 2017 | 13 | 14 |
| 2018 | 0 | 15 |
| 2019 | 12 | 11 |
| 2020 | 0 | 0 |
| 2021 | 13 | 0 |
| 2022 | 0 | 23 |
| 2023 | 12 | 21 |
| 2024 | 15 | 0 |
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 25% to 33% for hip 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. Mahr Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Mahr's recorded volume peaked at 33 procedures in 2023 and stood at 15 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Mahr
How does Dr. Mahr's procedure volume compare to other Illinois surgeons?
Dr. Mahr has performed 15 Medicare-verified joint replacement procedures. The Illinois average is 69 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Mahr ranks #277 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Mahr perform?
Dr. Mahr's reported Medicare volume is focused on hip replacement, with 15 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Mahr in Park Ridge?
Yes. There are 6 orthopedic surgeons in Park Ridge 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. Mahr 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 25% to 33% for hip replacement, which puts Dr. Mahr's total volume across all insurers at roughly 50 to 60 procedures against the 15 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. Mahr's procedure volume changed over time?
Dr. Mahr's Medicare-recorded volume peaked at 33 procedures in 2023 and was 15 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Which hospitals is Dr. Mahr affiliated with?
According to CMS facility affiliation data, Dr. Mahr is affiliated with Resurrection Medical Center, Advocate Lutheran General Hospital.
How does Dr. Mahr compare to other orthopedic surgeons in Park Ridge?
Among the 6 orthopedic surgeons in Park Ridge, Dr. Mahr ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Park Ridge has 122 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Mahr practices?
Resurrection Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Advocate Lutheran General 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 Park Ridge, Illinois
Dr. Mahr's 15 Medicare procedures are below the Park Ridge average of 64. The table below compares verified procedure volumes for orthopedic surgeons practicing in Park Ridge.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Lyon | 122 | Hip, Knee |
| Dr. Richard Hayek | 74 | Hip, Knee |
| Dr. Brian McCall | 72 | Hip, Knee |
| Dr. Arif Ali | 66 | Hip, Knee, Shoulder |
| Dr. James Bresch | 33 | 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.