Dr. Stephen Duncan, MD
Contact & Location
Lexington, KY 40536
Dr. Stephen Duncan is a board-certified orthopedic surgeon practicing in Lexington, Kentucky. A Medicare provider since 2008, Dr. Duncan has performed 36 Medicare-verified hip replacements (#14 in Kentucky) and 25 knee replacements, for a combined total of 61 procedures.
In Kentucky, Dr. Duncan performs near average in hip (36 vs 35 avg), below average in knee (25 vs 42 avg).
Dr. Duncan's reported Medicare volume is split between hip replacements (36 cases) and knee replacements (25 cases).
Beyond general orthopedic surgery, Dr. Duncan holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Lexington is home to 22 orthopedic surgeons in the current Medicare dataset. Patients in the Lexington area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Duncan extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 33 to 61 in the most recent data, a 85% increase. This sustained growth reflects an expanding joint replacement practice.
Among 4,532 hip replacement surgeons tracked nationally, Dr. Duncan's 36 verified procedures is near the national average of 36.
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. Duncan Compares
Procedure volume compared to the Kentucky state average.
Volume Trend Analysis
Dr. Duncan's Medicare-recorded procedure volume has trended upward over 12 years, increasing 85% from 33 procedures in 2013 to 61 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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
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.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Duncan
How does Dr. Duncan's procedure volume compare to other Kentucky surgeons?
Dr. Duncan has performed 61 Medicare-verified joint replacement procedures. This is in line with the Kentucky average of 61 procedures per surgeon. Dr. Duncan ranks #41 out of 128 orthopedic surgeons in Kentucky.
What types of joint replacement does Dr. Duncan perform?
Dr. Duncan's Medicare data shows procedures in hip replacement (36 cases) and knee replacement (25 cases).
How experienced is Dr. Duncan with hip replacement surgery?
Dr. Duncan ranks #14 in Kentucky for hip replacement with 36 Medicare-verified procedures. This high ranking among 128 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Duncan in Lexington?
Yes. There are 22 orthopedic surgeons in Lexington 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 Kentucky surgeons.
What does the Medicare data for Dr. Duncan 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. Duncan's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 61 procedures shown here.
Has Dr. Duncan's procedure volume changed over time?
Yes. Dr. Duncan's Medicare-recorded volume has increased from 33 procedures in 2013 to 61 in the most recent data, a 85% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 61 procedures in 2024.
Does Dr. Duncan perform more than one type of joint replacement?
Yes. Dr. Duncan's Medicare data shows procedures in hip replacement (36 cases), knee replacement (25 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Duncan affiliated with?
According to CMS facility affiliation data, Dr. Duncan is affiliated with University Of Kentucky Hospital.
How does Dr. Duncan compare to other orthopedic surgeons in Lexington?
Among the 22 orthopedic surgeons in Lexington, Dr. Duncan ranks #10 by total Medicare procedure volume. The highest-volume surgeon in Lexington has 253 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Duncan practices?
University Of Kentucky Hospital (4 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 Lexington, Kentucky
Dr. Duncan's 61 Medicare procedures are below the Lexington average of 131. The table below compares verified procedure volumes for orthopedic surgeons practicing in Lexington.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christian Christensen | 253 | Hip, Knee |
| Dr. Tharun Karthikeyan | 205 | Hip, Knee |
| Dr. Kevin Denehy | 135 | Hip, Knee |
| Dr. Jeffrey Selby | 89 | Hip, Knee |
| Dr. Wallace Huff | 89 | Hip, Knee |
| Dr. Ryan Donegan | 82 | Shoulder |
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.