Dr. Scott Trenhaile, M.D.
Contact & Location
815-398-9491
Rockford, IL 61107
Dr. Trenhaile performs more shoulder replacement procedures than 90% of orthopedic surgeons in Illinois, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #8 of 80 ranked shoulder surgeons in Illinois.
About Dr. Trenhaile
Practice. Dr. Scott Trenhaile is a board-certified orthopedic surgeon practicing in Rockford, Illinois. The latest annual CMS data records 53 shoulder replacements. That is #8 in Illinois for shoulder replacement. Dr. Trenhaile also holds credentials in Sports Medicine. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 16 procedures a year to 53, up 231%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 53 procedures is above the national average of 29.
Local context. Rockford has 8 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 | Shoulder Replacement |
|---|---|
| 2013 | 16 |
| 2014 | 31 |
| 2015 | 31 |
| 2016 | 40 |
| 2017 | 53 |
| 2018 | 45 |
| 2019 | 79 |
| 2020 | 68 |
| 2021 | 69 |
| 2022 | 68 |
| 2023 | 66 |
| 2024 | 53 |
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. Trenhaile Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Trenhaile's Medicare-recorded procedure volume has trended upward over 12 years, increasing 231% from 16 procedures in 2013 to 53 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 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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. Trenhaile
How does Dr. Trenhaile's procedure volume compare to other Illinois surgeons?
Dr. Trenhaile has performed 53 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. Trenhaile ranks #149 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Trenhaile perform?
Dr. Trenhaile's reported Medicare volume is focused on shoulder replacement, with 53 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Trenhaile with shoulder replacement surgery?
Dr. Trenhaile ranks #8 in Illinois for shoulder replacement with 53 Medicare-verified procedures. This high ranking among 316 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Trenhaile in Rockford?
Yes. There are 8 orthopedic surgeons in Rockford 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. Trenhaile 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. Trenhaile's total volume across all insurers at roughly 140 to 180 procedures against the 53 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. Trenhaile's procedure volume changed over time?
Yes. Dr. Trenhaile's Medicare-recorded volume has increased from 16 procedures in 2013 to 53 in the most recent data, a 231% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 79 procedures in 2019.
Which hospitals is Dr. Trenhaile affiliated with?
According to CMS facility affiliation data, Dr. Trenhaile is affiliated with Saint Anthony Medical Center, Osf Saint Paul Medical Center, Osf Saint Katharine Medical Center, Uw Health, Osf Saint Elizabeth Medical Center.
How does Dr. Trenhaile compare to other orthopedic surgeons in Rockford?
Among the 8 orthopedic surgeons in Rockford, Dr. Trenhaile ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Rockford has 210 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Trenhaile practices?
Saint Anthony Medical Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Osf Saint Katharine Medical Center (2 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 Rockford, Illinois
Dr. Trenhaile's 53 Medicare procedures are below the Rockford average of 99. The table below compares verified procedure volumes for orthopedic surgeons practicing in Rockford.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Mark Oyer | 210 | Hip, Knee |
| Dr. John Bottros | 173 | Hip, Knee |
| Dr. Jeremiah Pflederer | 100 | Hip, Knee |
| Dr. Mark Barba | 88 | Hip, Knee |
| Dr. Mathew Legel | 38 | Hip, Knee |
| Dr. Andrew Blint | 32 | 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.