Dr. William Frisella, M.D.
Contact & Location
636-441-3444
Saint Peters, MO 63376
Dr. Frisella performs more shoulder replacement procedures than 64% of orthopedic surgeons in Missouri, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #20 of 56 ranked shoulder surgeons in Missouri.
About Dr. Frisella
Practice. Dr. William Frisella is a board-certified orthopedic surgeon practicing in Saint Peters, Missouri. The latest annual CMS data records 30 shoulder replacements. That is #20 in Missouri for shoulder replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2014 to 2024, 10 years. Volume rose from 15 procedures a year to 30, up 100%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 30 procedures is near the national average of 29.
Verified Case Volume Trends (2013-Current)
| Year | Shoulder Replacement |
|---|---|
| 2013 | 0 |
| 2014 | 15 |
| 2015 | 20 |
| 2016 | 0 |
| 2017 | 13 |
| 2018 | 16 |
| 2019 | 26 |
| 2020 | 12 |
| 2021 | 28 |
| 2022 | 31 |
| 2023 | 32 |
| 2024 | 30 |
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 29% to 37% for shoulder 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. Frisella Compares
Procedure volume compared to the Missouri state average.
Volume Trend Analysis
Dr. Frisella's Medicare-recorded procedure volume has trended upward over 10 years, increasing 100% from 15 procedures in 2014 to 30 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 Shoulder Replacement
If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:
Evidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
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 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.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Frisella
How does Dr. Frisella's procedure volume compare to other Missouri surgeons?
Dr. Frisella has performed 30 Medicare-verified joint replacement procedures. The Missouri average is 59 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Frisella ranks #133 out of 204 orthopedic surgeons in Missouri.
What types of joint replacement does Dr. Frisella perform?
Dr. Frisella's reported Medicare volume is focused on shoulder replacement, with 30 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Frisella with shoulder replacement surgery?
Dr. Frisella ranks #20 in Missouri for shoulder replacement with 30 Medicare-verified procedures. This high ranking among 204 state surgeons indicates significant experience with this specific procedure.
Where is Dr. Frisella's practice located?
Dr. Frisella practices in Saint Peters, Missouri. The office is located at 112 Piper Hill Drive, Saint Peters, MO 63376. Patients in the surrounding area can consult Dr. Frisella for joint replacement evaluation.
What does the Medicare data for Dr. Frisella 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 29% to 37% for shoulder replacement, which puts Dr. Frisella's total volume across all insurers at roughly 80 to 100 procedures against the 30 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. Frisella's procedure volume changed over time?
Yes. Dr. Frisella's Medicare-recorded volume has increased from 15 procedures in 2014 to 30 in the most recent data, a 100% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 32 procedures in 2023.
Which hospitals is Dr. Frisella affiliated with?
According to CMS facility affiliation data, Dr. Frisella is affiliated with Barnes-Jewish St Peters Hospital, St Lukes Hospital, Progress West Hospital.
What are the quality ratings for hospitals where Dr. Frisella practices?
Barnes-Jewish St Peters Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); St Lukes Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Progress West Hospital (3 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.