#6 in Illinois
Shoulder

Dr. Scott Trenhaile, M.D.

Orthopedic Surgery
66 procedures 3 hospitals Rockford, IL
Latest available Medicare data — updated April 2026
Rising Star
Shoulder replacement recovery kit Slings, cold therapy, and adaptive clothing for recovery
National Comparison by Procedure
Shoulder 66 vs 28 avg (2,092 surgeons)

Dr. Scott Trenhaile is a board-certified orthopedic surgeon practicing in Rockford, Illinois. A Medicare provider since 2006, Dr. Trenhaile has performed 66 Medicare-verified shoulder replacements, ranking #6 in Illinois.

In Illinois, Dr. Trenhaile performs well above average in shoulder (66 vs 28 avg).

Dr. Trenhaile's Medicare data shows a focused shoulder replacement practice with 66 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.

Beyond general orthopedic surgery, Dr. Trenhaile holds additional credentials in Sports Medicine, reflecting subspecialty training that may benefit patients with complex joint conditions.

Rockford is home to 9 orthopedic surgeons in the current Medicare dataset. Patients in the Rockford area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Trenhaile extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 16 to 66 in the most recent data, a 313% increase. This sustained growth reflects an expanding joint replacement practice.

Among 2,092 shoulder replacement surgeons tracked nationally, Dr. Trenhaile's 66 verified procedures is more than 2x the national average of 28, ranking #131 nationally.

Verified Medicare Cases

Shoulder Replacement
66 verified cases
#6 in Illinois
Estimated total: 180 – 200 procedures (all insurers)
Based on Medicare FFS representing 33–37% of national joint replacement volume
How is this estimated?

Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.

How Dr. Trenhaile Compares

Procedure volume compared to the Illinois state average.

Shoulder Very High
66 Avg: 28
Dr. Trenhaile Illinois Average

Contact & Location

Phone: 815-398-9491
324 Roxbury Rd
Rockford, IL 61107
NPI: 1306951553
Credentials: M.D.
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed M.D.
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps

Volume Trend Analysis

Dr. Trenhaile's Medicare-recorded procedure volume has trended upward over 11 years, increasing 313% from 16 procedures in 2013 to 66 in the most recent data.

Years of Data 11
2023 Volume 66
Peak Volume 79 (2019)
Trend Growing

Hospital Affiliations & Quality

H
Saint Anthony Medical Center
★★☆☆☆
Rockford, IL
Similar to national avg
H
Osf Saint Paul Medical Center
Mendota, IL
H
Osf Saint Katharine Medical Center
★★☆☆☆
Dixon, IL
Low case volume

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.

Shoulder Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:

Week 1-3 Arm in a sling for protection. Gentle pendulum exercises under therapist guidance. Focus on pain management and wound care.
Week 4-6 Gradual sling weaning. Begin passive and active-assisted range-of-motion exercises. Light daily activities resume.
Week 7-12 Active range-of-motion exercises. Light strengthening begins. Most patients can drive and perform desk work.
Month 4-6 Progressive strengthening continues. Return to most activities. Full recovery may take 6-12 months for complete shoulder strength.

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 66 Medicare-verified joint replacement procedures. This is in line with the Illinois average of 69 procedures per surgeon. Dr. Trenhaile ranks #126 out of 323 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 66 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 #6 in Illinois for shoulder replacement with 66 Medicare-verified procedures. This high ranking among 323 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Trenhaile in Rockford?

Yes. There are 9 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 the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Trenhaile's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 66 procedures shown here.

Has Dr. Trenhaile's procedure volume changed over time?

Yes. Dr. Trenhaile's Medicare-recorded volume has increased from 16 procedures in 2013 to 66 in the most recent data, a 313% increase over 11 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.

How does Dr. Trenhaile compare to other orthopedic surgeons in Rockford?

Among the 9 orthopedic surgeons in Rockford, Dr. Trenhaile ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Rockford has 213 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 66 Medicare procedures are below the Rockford average of 102. The table below compares verified procedure volumes for orthopedic surgeons practicing in Rockford.

SurgeonProceduresSpecialties
Dr. Mark Oyer 213 Hip, Knee
Dr. John Bottros 202 Hip, Knee
Dr. Mark Barba 123 Hip, Knee
Dr. Jeremiah Pflederer 56 Hip, Knee
Dr. Mathew Legel 37 Hip, Knee
Dr. Scott Nyquist 18 Knee

Patient Reviews & Ratings

OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:

These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Scott Trenhaile, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/il/dr-scott-trenhaile-rockford.html

Link: https://orthoprocedures.com/surgeons/il/dr-scott-trenhaile-rockford.html

Data source: CMS Medicare Part B Provider Utilization & Payment Data. Full methodology | Open Data API

Important: Rankings are based solely on Medicare procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately one-third to 40% of all joint replacement procedures nationwide. Always consult with healthcare providers to make informed decisions about your care.