Dr. Robert Haas, D.O.
Contact & Location
913-651-7151
Leavenworth, KS 66048
Dr. Haas performs more knee replacement procedures than 33% of orthopedic surgeons in Kansas, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #59 of 89 ranked knee surgeons in Kansas.
About Dr. Haas
Practice. Dr. Robert Haas is a board-certified orthopedic surgeon practicing in Leavenworth, Kansas. The latest annual CMS data records 36 knee replacements and 17 hip replacements, 53 procedures in all. That is #59 in Kansas for knee replacement. A Medicare provider since 2012.
Trend. Medicare records run from 2018 to 2024, 7 years. Volume rose from 17 procedures a year to 53, up 212%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 36 procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 17 |
| 2019 | 0 | 20 |
| 2020 | 0 | 31 |
| 2021 | 15 | 28 |
| 2022 | 0 | 27 |
| 2023 | 15 | 28 |
| 2024 | 17 | 36 |
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, 25% to 33% for hip 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. Haas Compares
Procedure volume compared to the Kansas state average.
Volume Trend Analysis
Dr. Haas's Medicare-recorded procedure volume has trended upward over 7 years, increasing 212% from 17 procedures in 2018 to 53 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.
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.
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.
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. Haas
How does Dr. Haas's procedure volume compare to other Kansas surgeons?
Dr. Haas has performed 53 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. Haas ranks #63 out of 110 orthopedic surgeons in Kansas.
What types of joint replacement does Dr. Haas perform?
Dr. Haas's Medicare data shows procedures in knee replacement (36 cases) and hip replacement (17 cases).
Where is Dr. Haas's practice located?
Dr. Haas practices in Leavenworth, Kansas. The office is located at 1001 6th Ave, Leavenworth, KS 66048. Patients in the surrounding area can consult Dr. Haas for joint replacement evaluation.
What does the Medicare data for Dr. Haas 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, 25% to 33% for hip replacement, which puts Dr. Haas's total volume across all insurers at roughly 180 to 220 procedures against the 53 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. Haas's procedure volume changed over time?
Yes. Dr. Haas's Medicare-recorded volume has increased from 17 procedures in 2018 to 53 in the most recent data, a 212% increase over 7 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 53 procedures in 2024.
Does Dr. Haas perform more than one type of joint replacement?
Yes. Dr. Haas's Medicare data shows procedures in knee replacement (36 cases), hip replacement (17 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Haas affiliated with?
According to CMS facility affiliation data, Dr. Haas is affiliated with Saint Lukes North Hospital, St Lukes Hospital Of Kansas City. Dr. Haas maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
What are the quality ratings for hospitals where Dr. Haas practices?
Saint Lukes North Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); St Lukes Hospital Of Kansas City (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.