Dr. John Nettrour, M.D.
Contact & Location
414-805-7400
Milwaukee, WI 53226
Menomonee Falls, WI 53051
Dr. Nettrour performs more hip replacement procedures than 31% of orthopedic surgeons in Wisconsin, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #77 of 113 ranked hip surgeons in Wisconsin.
About Dr. Nettrour
Practice. Dr. John Nettrour is a board-certified orthopedic surgeon practicing in Milwaukee, Wisconsin. The latest annual CMS data records 18 hip replacements. That is #77 in Wisconsin for hip replacement. A Medicare provider since 2005.
Trend. Medicare records run from 2013 to 2024, 8 years. Volume peaked at 100 in 2014 and stands at 18 now. Reporting changes and payer mix can both move that number.
National context. Among 4,542 hip replacement surgeons tracked nationally, 18 procedures is below the national average of 36. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Milwaukee has 16 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 | 43 | 44 |
| 2014 | 62 | 38 |
| 2015 | 36 | 24 |
| 2016 | 23 | 15 |
| 2017 | 15 | 0 |
| 2018 | 0 | 0 |
| 2019 | 16 | 28 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 18 | 0 |
| 2024 | 18 | 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. Nettrour Compares
Procedure volume compared to the Wisconsin state average.
Volume Trend Analysis
Dr. Nettrour's recorded volume peaked at 100 procedures in 2014 and stood at 18 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.
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.
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. Nettrour
How does Dr. Nettrour's procedure volume compare to other Wisconsin surgeons?
Dr. Nettrour has performed 18 Medicare-verified joint replacement procedures. The Wisconsin average is 51 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Nettrour ranks #142 out of 189 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Nettrour perform?
Dr. Nettrour's reported Medicare volume is focused on hip replacement, with 18 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Nettrour in Milwaukee?
Yes. There are 16 orthopedic surgeons in Milwaukee 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 Wisconsin surgeons.
What does the Medicare data for Dr. Nettrour 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. Nettrour's total volume across all insurers at roughly 50 to 70 procedures against the 18 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. Nettrour's procedure volume changed over time?
Dr. Nettrour's Medicare-recorded volume peaked at 100 procedures in 2014 and was 18 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. Nettrour affiliated with?
According to CMS facility affiliation data, Dr. Nettrour is affiliated with Froedtert Memorial Lutheran Hospital, Froedtert Menomonee Falls Hospital.
How does Dr. Nettrour compare to other orthopedic surgeons in Milwaukee?
Among the 16 orthopedic surgeons in Milwaukee, Dr. Nettrour ranks #12 by total Medicare procedure volume. The highest-volume surgeon in Milwaukee has 181 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Nettrour practices?
Froedtert Memorial Lutheran Hospital (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Froedtert Menomonee Falls Hospital (3 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 Milwaukee, Wisconsin
Dr. Nettrour's 18 Medicare procedures are below the Milwaukee average of 78. The table below compares verified procedure volumes for orthopedic surgeons practicing in Milwaukee.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher Evanich | 181 | Hip, Knee |
| Dr. Nicholas Webber | 132 | Hip, Knee |
| Dr. Patrick Jost | 65 | Hip, Knee |
| Dr. Navjot Kohli | 53 | Knee, Shoulder |
| Dr. Edward Nelsen-Freund | 50 | Hip, Knee |
| Dr. Benjamin Knight | 49 | 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.