Dr. William Schroer, M.D.
Contact & Location
314-291-7900
Bridgeton, MO 63044
Bridgeton, MO 63044
Dr. Schroer performs more knee replacement procedures than 98% of orthopedic surgeons in Missouri, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #3 of 166 ranked knee surgeons in Missouri.
About Dr. Schroer
Practice. Dr. William Schroer is a board-certified orthopedic surgeon practicing in Bridgeton, Missouri. The latest annual CMS data records 185 knee replacements. That is #3 in Missouri for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume peaked at 277 in 2013 and stands at 185 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 185 procedures is more than 4x the national average of 45. That is #77 nationally.
Local context. Bridgeton has 4 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist. Dr. Schroer also holds hospital privileges in MO and IL, a practice that extends beyond Missouri.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 277 |
| 2014 | 255 |
| 2015 | 239 |
| 2016 | 219 |
| 2017 | 233 |
| 2018 | 232 |
| 2019 | 216 |
| 2020 | 145 |
| 2021 | 212 |
| 2022 | 202 |
| 2023 | 204 |
| 2024 | 185 |
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. Schroer Compares
Procedure volume compared to the Missouri state average.
Volume Trend Analysis
Dr. Schroer's recorded volume peaked at 277 procedures in 2013 and stood at 185 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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. Schroer
How does Dr. Schroer's procedure volume compare to other Missouri surgeons?
Dr. Schroer has performed 185 Medicare-verified joint replacement procedures. This is more than 3x the Missouri average of 59 procedures per surgeon. Dr. Schroer ranks #7 out of 204 orthopedic surgeons in Missouri.
What types of joint replacement does Dr. Schroer perform?
Dr. Schroer's reported Medicare volume is focused on knee replacement, with 185 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Schroer with knee replacement surgery?
Dr. Schroer ranks #3 in Missouri for knee replacement with 185 Medicare-verified procedures. This high ranking among 204 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Schroer in Bridgeton?
Yes. There are 4 orthopedic surgeons in Bridgeton 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 Missouri surgeons.
What does the Medicare data for Dr. Schroer 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. Schroer's total volume across all insurers at roughly 660 to 800 procedures against the 185 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. Schroer's procedure volume changed over time?
Dr. Schroer's Medicare-recorded volume peaked at 277 procedures in 2013 and was 185 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. Schroer affiliated with?
According to CMS facility affiliation data, Dr. Schroer is affiliated with Ssm Health Depaul Hospital St Louis, Ssm Health St Joseph Hospital-St Charles, St Francis Hospital. Dr. Schroer maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Schroer compare to other orthopedic surgeons in Bridgeton?
Among the 4 orthopedic surgeons in Bridgeton, Dr. Schroer ranks #1 by total Medicare procedure volume. Dr. Schroer has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Schroer practices?
Ssm Health Depaul Hospital St Louis (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Ssm Health St Joseph Hospital-St Charles (2 out of 5 CMS stars, insufficient case volume for complication rate comparison); St Francis Hospital (3 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 Bridgeton, Missouri
Dr. Schroer's 185 Medicare procedures are above the Bridgeton average of 85. The table below compares verified procedure volumes for orthopedic surgeons practicing in Bridgeton.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Frank Tull | 92 | Hip, Knee |
| Dr. Katherine Burns | 49 | Shoulder |
| Dr. Fallon Maylack | 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.