Dr. Daryl Oconnor, MD
Contact & Location
Elmhurst, IL 60126
Dr. Daryl Oconnor is a board-certified orthopedic surgeon practicing in Elmhurst, Illinois. A Medicare provider since 2005, Dr. Oconnor has performed 15 Medicare-verified knee replacements (#217 in Illinois) and 11 hip replacements, for a combined total of 26 procedures.
In Illinois, Dr. Oconnor performs below average in knee (15 vs 50 avg), below average in hip (11 vs 39 avg).
Dr. Oconnor's reported Medicare volume is split between knee replacements (15 cases) and hip replacements (11 cases).
Elmhurst is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Elmhurst area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Oconnor extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 16 to 26 in the most recent data, a 63% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Oconnor's 15 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
Verified Medicare Cases
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. Oconnor Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Oconnor's Medicare-recorded procedure volume has trended upward over 12 years, increasing 63% from 16 procedures in 2013 to 26 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.
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.
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. Oconnor
How does Dr. Oconnor's procedure volume compare to other Illinois surgeons?
Dr. Oconnor has performed 26 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. Oconnor ranks #227 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Oconnor perform?
Dr. Oconnor's Medicare data shows procedures in knee replacement (15 cases) and hip replacement (11 cases).
Are there other orthopedic surgeons near Dr. Oconnor in Elmhurst?
Yes. There are 6 orthopedic surgeons in Elmhurst 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. Oconnor 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. Oconnor's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 26 procedures shown here.
Has Dr. Oconnor's procedure volume changed over time?
Yes. Dr. Oconnor's Medicare-recorded volume has increased from 16 procedures in 2013 to 26 in the most recent data, a 63% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 39 procedures in 2014.
Does Dr. Oconnor perform more than one type of joint replacement?
Yes. Dr. Oconnor's Medicare data shows procedures in knee replacement (15 cases), hip replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Oconnor affiliated with?
According to CMS facility affiliation data, Dr. Oconnor is affiliated with Elmhurst Memorial Hospital.
How does Dr. Oconnor compare to other orthopedic surgeons in Elmhurst?
Among the 6 orthopedic surgeons in Elmhurst, Dr. Oconnor ranks #2 by total Medicare procedure volume. Dr. Oconnor is among the highest-volume surgeons in Elmhurst.
What are the quality ratings for hospitals where Dr. Oconnor practices?
Elmhurst Memorial Hospital (4 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 Elmhurst, Illinois
Dr. Oconnor's 26 Medicare procedures are below the Elmhurst average of 28. The table below compares verified procedure volumes for orthopedic surgeons practicing in Elmhurst.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeffrey Meisles | 73 | Hip, Knee |
| Dr. John Nikoleit | 18 | Knee |
| Dr. Ryon Hennessy | 17 | Knee |
| Dr. William Hadesman | 16 | Knee |
| Dr. Patrick Strotman | 15 | 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.