Dr. Aaron Bare, MD

Orthopedic Surgery
110 procedures 4 hospitals Warrenville, IL
Latest available Medicare data — updated April 2026
Growing Volume

Contact & Location

Phone: 630-225-2663
Practice phone listed in the NPI registry
27650 Ferry Rd
Warrenville, IL 60555
NPI: 1902869670
Credentials: MD
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
Shoulder replacement recovery kit Slings, cold therapy, and adaptive clothing for recovery
National Comparison by Procedure
Knee 33 vs 45 avg (6,599 surgeons)
Shoulder 77 vs 29 avg (2,213 surgeons)

Dr. Aaron Bare is a board-certified orthopedic surgeon practicing in Warrenville, Illinois. A Medicare provider since 2006, Dr. Bare has performed 77 Medicare-verified shoulder replacements (#2 in Illinois) and 33 knee replacements, for a combined total of 110 procedures.

In Illinois, Dr. Bare performs well above average in shoulder (77 vs 27 avg), below average in knee (33 vs 50 avg).

Dr. Bare's reported Medicare volume is split between shoulder replacements (77 cases) and knee replacements (33 cases).

Warrenville is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Warrenville area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Bare extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 11 to 110 in the most recent data, a 900% increase. This sustained growth reflects an expanding joint replacement practice.

Among 2,213 shoulder replacement surgeons tracked nationally, Dr. Bare's 77 verified procedures is more than 2x the national average of 29, ranking #94 nationally.

Verified Medicare Cases

Shoulder Replacement
77 verified cases
#2 in Illinois
Knee Replacement
33 verified cases
#139 in Illinois
Estimated total: 300 – 330 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. Bare Compares

Procedure volume compared to the Illinois state average.

Knee Below Avg
33 Avg: 50
Shoulder Very High
77 Avg: 27
Dr. Bare Illinois Average

Volume Trend Analysis

Dr. Bare's Medicare-recorded procedure volume has trended upward over 11 years, increasing 900% from 11 procedures in 2013 to 110 in the most recent data.

Years of Data 11
2024 Volume 110
Peak Volume 110 (2024)
Trend Growing

Hospital Affiliations & Quality

H
Northwestern Medicine Central Dupage Hospital
5/5
Winfield, IL
Similar to national avg
H
Northwestern Medicine Delnor Community Hospital
5/5
Geneva, IL
Similar to national avg
H
Northwestern Medicine Mchenry Hospital
5/5
Mchenry, IL
Similar to national avg
H
Northwestern Medicine Kishwaukee Hospital
4/5
Dekalb, 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.

Patient Resources: Preparing for Shoulder Replacement

If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:

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. Bare

How does Dr. Bare's procedure volume compare to other Illinois surgeons?

Dr. Bare has performed 110 Medicare-verified joint replacement procedures. This is significantly above the Illinois average of 69 procedures per surgeon. Dr. Bare ranks #66 out of 316 orthopedic surgeons in Illinois.

What types of joint replacement does Dr. Bare perform?

Dr. Bare's Medicare data shows procedures in shoulder replacement (77 cases) and knee replacement (33 cases).

How experienced is Dr. Bare with shoulder replacement surgery?

Dr. Bare ranks #2 in Illinois for shoulder replacement with 77 Medicare-verified procedures. This high ranking among 316 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Bare in Warrenville?

Yes. There are 4 orthopedic surgeons in Warrenville 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. Bare 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. Bare's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 110 procedures shown here.

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

Yes. Dr. Bare's Medicare-recorded volume has increased from 11 procedures in 2013 to 110 in the most recent data, a 900% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 110 procedures in 2024.

Does Dr. Bare perform more than one type of joint replacement?

Yes. Dr. Bare's Medicare data shows procedures in shoulder replacement (77 cases), knee replacement (33 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Bare affiliated with?

According to CMS facility affiliation data, Dr. Bare is affiliated with Northwestern Medicine Central Dupage Hospital, Northwestern Medicine Delnor Community Hospital, Northwestern Medicine Mchenry Hospital, Northwestern Medicine Kishwaukee Hospital.

How does Dr. Bare compare to other orthopedic surgeons in Warrenville?

Among the 4 orthopedic surgeons in Warrenville, Dr. Bare ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Warrenville has 224 verified Medicare procedures.

What are the quality ratings for hospitals where Dr. Bare practices?

Northwestern Medicine Central Dupage Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwestern Medicine Delnor Community Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwestern Medicine Mchenry Hospital (5 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 Warrenville, Illinois

Dr. Bare's 110 Medicare procedures are below the Warrenville average of 143. The table below compares verified procedure volumes for orthopedic surgeons practicing in Warrenville.

SurgeonProceduresSpecialties
Dr. William Sterba 224 Hip, Knee
Dr. Edward Sutter 122 Hip, Knee
Dr. Charles Lupo 116 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.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Aaron Bare, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/il/dr-aaron-bare-warrenville.html

Link: https://orthoprocedures.com/surgeons/il/dr-aaron-bare-warrenville.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.