Dr. Brian Duncan, M.D.
Contact & Location
913-367-2131
Atchison, KS 66002
Hiawatha, KS 66434
Hiawatha, KS 66434
Atchison, KS 66002
Lansing, KS 66043
Dr. Duncan performs more knee replacement procedures than 25% of orthopedic surgeons in Kansas, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #66 of 89 ranked knee surgeons in Kansas.
About Dr. Duncan
Practice. Dr. Brian Duncan is a board-certified orthopedic surgeon practicing in Atchison, Kansas. The latest annual CMS data records 29 knee replacements. That is #66 in Kansas for knee replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2013 to 2024, 11 years. Volume peaked at 72 in 2017 and stands at 29 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 29 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Dr. Duncan practices across state lines. Dr. Duncan also holds hospital privileges in KS and MO, a practice that extends beyond Kansas.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 11 |
| 2014 | 0 | 17 |
| 2015 | 18 | 21 |
| 2016 | 21 | 48 |
| 2017 | 22 | 50 |
| 2018 | 19 | 20 |
| 2019 | 0 | 20 |
| 2020 | 0 | 14 |
| 2021 | 0 | 0 |
| 2022 | 12 | 16 |
| 2023 | 19 | 39 |
| 2024 | 0 | 29 |
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 23% to 28% for knee 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. Duncan Compares
Procedure volume compared to the Kansas state average.
Volume Trend Analysis
Dr. Duncan's recorded volume peaked at 72 procedures in 2017 and stood at 29 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
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.
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. Duncan
How does Dr. Duncan's procedure volume compare to other Kansas surgeons?
Dr. Duncan has performed 29 Medicare-verified joint replacement procedures. The Kansas average is 85 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Duncan ranks #85 out of 110 orthopedic surgeons in Kansas.
What types of joint replacement does Dr. Duncan perform?
Dr. Duncan's reported Medicare volume is focused on knee replacement, with 29 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Where is Dr. Duncan's practice located?
Dr. Duncan practices in Atchison, Kansas. The office is located at 800 Ravenhill Dr, Atchison, KS 66002. Patients in the surrounding area can consult Dr. Duncan for joint replacement evaluation.
What does the Medicare data for Dr. Duncan 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 23% to 28% for knee replacement, which puts Dr. Duncan's total volume across all insurers at roughly 100 to 130 procedures against the 29 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. Duncan's procedure volume changed over time?
Dr. Duncan's Medicare-recorded volume peaked at 72 procedures in 2017 and was 29 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Which hospitals is Dr. Duncan affiliated with?
According to CMS facility affiliation data, Dr. Duncan is affiliated with Amberwell Atchison Association, Amberwell Hiawatha, Mosaic Life Care At St Joseph. Dr. Duncan maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
What are the quality ratings for hospitals where Dr. Duncan practices?
Amberwell Atchison Association (hip/knee complication rate similar to national average); Amberwell Hiawatha (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Mosaic Life Care At St Joseph (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.
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.