Dr. Casey Lagan, M.D.
Contact & Location
715-359-6442
Wausau, WI 54401
Dumas, TX 79029
Dr. Lagan performs more knee replacement procedures than 34% of orthopedic surgeons in Wisconsin, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #100 of 152 ranked knee surgeons in Wisconsin.
About Dr. Lagan
Practice. Dr. Casey Lagan is a board-certified orthopedic surgeon practicing in Wausau, Wisconsin. The latest annual CMS data records 21 knee replacements, 14 hip replacements, and 12 shoulder replacements, 47 procedures in all. That is #100 in Wisconsin for knee replacement.
Trend. Medicare records run from 2016 to 2024, 8 years. Volume rose from 11 procedures a year to 47, up 327%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 21 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Wausau has 9 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 | Shoulder Replacement |
|---|---|---|---|
| 2013 | 0 | 0 | 0 |
| 2014 | 0 | 0 | 0 |
| 2015 | 0 | 0 | 0 |
| 2016 | 0 | 11 | 0 |
| 2017 | 0 | 16 | 0 |
| 2018 | 0 | 12 | 0 |
| 2019 | 0 | 24 | 0 |
| 2020 | 0 | 0 | 0 |
| 2021 | 0 | 17 | 0 |
| 2022 | 0 | 14 | 0 |
| 2023 | 17 | 23 | 0 |
| 2024 | 14 | 21 | 12 |
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 23% to 28% for knee replacement, 25% to 33% for hip replacement, 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. Lagan Compares
Procedure volume compared to the Wisconsin state average.
Volume Trend Analysis
Dr. Lagan's Medicare-recorded procedure volume has trended upward over 8 years, increasing 327% from 11 procedures in 2016 to 47 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.
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.
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. Lagan
How does Dr. Lagan's procedure volume compare to other Wisconsin surgeons?
Dr. Lagan has performed 47 Medicare-verified joint replacement procedures. This is in line with the Wisconsin average of 51 procedures per surgeon. Dr. Lagan ranks #88 out of 189 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Lagan perform?
Dr. Lagan performs all three major joint replacement procedures: knee replacement (21 cases), hip replacement (14 cases), shoulder replacement (12 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Are there other orthopedic surgeons near Dr. Lagan in Wausau?
Yes. There are 9 orthopedic surgeons in Wausau 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. Lagan 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 23% to 28% for knee replacement, 25% to 33% for hip replacement, 29% to 37% for shoulder replacement, which puts Dr. Lagan's total volume across all insurers at roughly 150 to 190 procedures against the 47 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. Lagan's procedure volume changed over time?
Yes. Dr. Lagan's Medicare-recorded volume has increased from 11 procedures in 2016 to 47 in the most recent data, a 327% increase over 8 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 47 procedures in 2024.
Does Dr. Lagan perform more than one type of joint replacement?
Yes. Dr. Lagan's Medicare data shows procedures in knee replacement (21 cases), hip replacement (14 cases), shoulder replacement (12 cases). Performing all three major joint replacements places Dr. Lagan among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Lagan affiliated with?
According to CMS facility affiliation data, Dr. Lagan is affiliated with Aspirus Wausau Hospital, Aspirus Medford Hospital & Clinics, Inc, Howard Young Medical Ctr, Aspirus Rhinelander Hospital, Marshfield Medical Center - Weston.
How does Dr. Lagan compare to other orthopedic surgeons in Wausau?
Among the 9 orthopedic surgeons in Wausau, Dr. Lagan ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Wausau has 74 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Lagan practices?
Aspirus Wausau Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Howard Young Medical Ctr (4 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Wausau, Wisconsin
Dr. Lagan's 47 Medicare procedures are below the Wausau average of 53. The table below compares verified procedure volumes for orthopedic surgeons practicing in Wausau.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Douglas Keele | 74 | Hip, Knee |
| Dr. Roger Gregush | 61 | Hip, Knee |
| Dr. Jeremy Russell | 60 | Hip, Knee |
| Dr. Eric Thiel | 59 | Hip, Knee |
| Dr. James Sutherland | 40 | Hip, Knee |
| Dr. Faruk Abuzzahab | 32 | 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.