Dr. Nathan Kopydlowski, M.D.
Contact & Location
262-329-1000
Grafton, WI 53024
Dr. Kopydlowski performs more shoulder replacement procedures than 42% of orthopedic surgeons in Wisconsin, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #23 of 40 ranked shoulder surgeons in Wisconsin.
About Dr. Kopydlowski
Practice. Dr. Nathan Kopydlowski is a board-certified orthopedic surgeon practicing in Grafton, Wisconsin. The latest annual CMS data records 17 shoulder replacements. That is #23 in Wisconsin for shoulder replacement. A Medicare provider since 2015.
Trend. Dr. Kopydlowski first appears in the Medicare data in 2021. With 2 years on record, the trend is still short.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 17 procedures is below the national average of 29. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Grafton 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
Verified Medicare data is available for 2 years: 11 procedures in 2021 and 17 procedures in the most recent reporting year. A multi-year trend chart is shown once at least 3 years of data are available.
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. 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. Kopydlowski Compares
Procedure volume compared to the Wisconsin state average.
Volume Trend Analysis
Dr. Kopydlowski has 2 years of Medicare procedure data beginning in 2021. Additional years of data will provide a clearer picture of volume trends.
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 step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Rehabilitation Roadmap: Your Complete Recovery GuideA structured physical therapy progression from the first post-op exercises through full strength and mobility restoration over 3 to 6 months.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Kopydlowski
How does Dr. Kopydlowski's procedure volume compare to other Wisconsin surgeons?
Dr. Kopydlowski has performed 17 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. Kopydlowski ranks #149 out of 189 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Kopydlowski perform?
Dr. Kopydlowski's reported Medicare volume is focused on shoulder replacement, with 17 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Kopydlowski in Grafton?
Yes. There are 6 orthopedic surgeons in Grafton 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. Kopydlowski 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, which puts Dr. Kopydlowski's total volume across all insurers at roughly 50 to 60 procedures against the 17 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.
Which hospitals is Dr. Kopydlowski affiliated with?
According to CMS facility affiliation data, Dr. Kopydlowski is affiliated with Aurora Medical Center, Aurora Medical Ctr Washington County, Aurora St Lukes Medical Center, Aurora Medical Center Summit, Aurora Medical Center Sheboygan County.
How does Dr. Kopydlowski compare to other orthopedic surgeons in Grafton?
Among the 6 orthopedic surgeons in Grafton, Dr. Kopydlowski ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Grafton has 79 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Kopydlowski practices?
Aurora Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Aurora Medical Ctr Washington County (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Aurora St Lukes Medical Center (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 Grafton, Wisconsin
Dr. Kopydlowski's 17 Medicare procedures are below the Grafton average of 31. The table below compares verified procedure volumes for orthopedic surgeons practicing in Grafton.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Stephen Kurtin | 79 | Hip, Knee |
| Dr. Michael Anderson | 44 | Hip, Knee |
| Dr. Rafael Walker -Santiago | 20 | Hip |
| Dr. Matthew Wichman | 12 | Hip |
| Dr. Omar Darr | 11 | 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.