Dr. Troy Berg, M.D.
Contact & Location
715-832-1400
Altoona, WI 54720
Dr. Berg performs more knee replacement procedures than 90% of orthopedic surgeons in Wisconsin, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #15 of 152 ranked knee surgeons in Wisconsin.
About Dr. Berg
Practice. Dr. Troy Berg is a board-certified orthopedic surgeon practicing in Altoona, Wisconsin. The latest annual CMS data records 72 knee replacements. That is #15 in Wisconsin for knee replacement. Dr. Berg also holds credentials in Sports Medicine. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 24 procedures a year to 72, up 200%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 72 procedures is above the national average of 45.
Local context. Altoona has 7 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 | Knee Replacement | Shoulder Replacement |
|---|---|---|
| 2013 | 24 | 0 |
| 2014 | 21 | 0 |
| 2015 | 52 | 0 |
| 2016 | 55 | 0 |
| 2017 | 57 | 0 |
| 2018 | 71 | 15 |
| 2019 | 61 | 0 |
| 2020 | 64 | 11 |
| 2021 | 58 | 12 |
| 2022 | 61 | 15 |
| 2023 | 66 | 0 |
| 2024 | 72 | 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 23% to 28% for knee 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. Berg Compares
Procedure volume compared to the Wisconsin state average.
Volume Trend Analysis
Dr. Berg's Medicare-recorded procedure volume has trended upward over 12 years, increasing 200% from 24 procedures in 2013 to 72 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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.
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. Berg
How does Dr. Berg's procedure volume compare to other Wisconsin surgeons?
Dr. Berg has performed 72 Medicare-verified joint replacement procedures. This is in line with the Wisconsin average of 51 procedures per surgeon. Dr. Berg ranks #43 out of 189 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Berg perform?
Dr. Berg's reported Medicare volume is focused on knee replacement, with 72 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Berg with knee replacement surgery?
Dr. Berg ranks #15 in Wisconsin for knee replacement with 72 Medicare-verified procedures. This high ranking among 189 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Berg in Altoona?
Yes. There are 7 orthopedic surgeons in Altoona 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. Berg 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, which puts Dr. Berg's total volume across all insurers at roughly 260 to 310 procedures against the 72 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. Berg's procedure volume changed over time?
Yes. Dr. Berg's Medicare-recorded volume has increased from 24 procedures in 2013 to 72 in the most recent data, a 200% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 86 procedures in 2018.
Which hospitals is Dr. Berg affiliated with?
According to CMS facility affiliation data, Dr. Berg is affiliated with Oakleaf Surgical Hospital, Cumberland Memorial Hospital, Marshfield Medical Center - Eau Claire, Mayo Clinic Health System In Eau Claire, Marshfield Medical Center - Rice Lake.
How does Dr. Berg compare to other orthopedic surgeons in Altoona?
Among the 7 orthopedic surgeons in Altoona, Dr. Berg ranks #2 by total Medicare procedure volume. Dr. Berg is among the highest-volume surgeons in Altoona.
What are the quality ratings for hospitals where Dr. Berg practices?
Oakleaf Surgical Hospital (hip/knee complication rate similar to national average); Cumberland Memorial Hospital (insufficient case volume for complication rate comparison); Marshfield Medical Center - Eau Claire (3 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Altoona, Wisconsin
Dr. Berg's 72 Medicare procedures are above the Altoona average of 56. The table below compares verified procedure volumes for orthopedic surgeons practicing in Altoona.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Nathaniel Stewart | 77 | Hip, Knee |
| Dr. Brent Carlson | 69 | Hip, Knee |
| Dr. Nathan Harris | 57 | Hip, Knee |
| Dr. Austin Crow | 55 | Knee, Shoulder |
| Dr. Evan Peissig | 42 | Hip, Knee |
| Dr. Mark McCarthy | 19 | 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.