Dr. John Clohisy, M.D.
Contact & Location
314-514-3500
Saint Louis, MO 63110
Dr. Clohisy performs more hip replacement procedures than 97% of orthopedic surgeons in Missouri, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #3 of 100 ranked hip surgeons in Missouri.
About Dr. Clohisy
Practice. Dr. John Clohisy is a board-certified orthopedic surgeon practicing in Saint Louis, Missouri. The latest annual CMS data records 83 hip replacements. That is #3 in Missouri for hip replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 71 procedures a year to 83, up 17%.
National context. Among 4,542 hip replacement surgeons tracked nationally, 83 procedures is more than 2x the national average of 36.
Local context. Saint Louis has 57 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist. Dr. Clohisy also holds hospital privileges in MO and IL, a practice that extends beyond Missouri.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement |
|---|---|
| 2013 | 71 |
| 2014 | 66 |
| 2015 | 95 |
| 2016 | 64 |
| 2017 | 73 |
| 2018 | 83 |
| 2019 | 79 |
| 2020 | 86 |
| 2021 | 94 |
| 2022 | 99 |
| 2023 | 99 |
| 2024 | 83 |
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 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. Clohisy Compares
Procedure volume compared to the Missouri state average.
Volume Trend Analysis
Dr. Clohisy's Medicare-recorded procedure volume has trended upward over 12 years, increasing 17% from 71 procedures in 2013 to 83 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.
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.
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. Clohisy
How does Dr. Clohisy's procedure volume compare to other Missouri surgeons?
Dr. Clohisy has performed 83 Medicare-verified joint replacement procedures. This is in line with the Missouri average of 59 procedures per surgeon. Dr. Clohisy ranks #39 out of 204 orthopedic surgeons in Missouri.
What types of joint replacement does Dr. Clohisy perform?
Dr. Clohisy's reported Medicare volume is focused on hip replacement, with 83 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Clohisy with hip replacement surgery?
Dr. Clohisy ranks #3 in Missouri for hip replacement with 83 Medicare-verified procedures. This high ranking among 204 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Clohisy in Saint Louis?
Yes. There are 57 orthopedic surgeons in Saint Louis 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. Clohisy 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 25% to 33% for hip replacement, which puts Dr. Clohisy's total volume across all insurers at roughly 250 to 330 procedures against the 83 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. Clohisy's procedure volume changed over time?
Yes. Dr. Clohisy's Medicare-recorded volume has increased from 71 procedures in 2013 to 83 in the most recent data, a 17% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 99 procedures in 2022.
Which hospitals is Dr. Clohisy affiliated with?
According to CMS facility affiliation data, Dr. Clohisy is affiliated with Barnes-Jewish West County Hospital, Barnes Jewish Hospital, Memorial Hospital, St Lukes Hospital, Missouri Baptist Medical Center. Dr. Clohisy maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Clohisy compare to other orthopedic surgeons in Saint Louis?
Among the 57 orthopedic surgeons in Saint Louis, Dr. Clohisy ranks #13 by total Medicare procedure volume. The highest-volume surgeon in Saint Louis has 279 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Clohisy practices?
Barnes-Jewish West County Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Barnes Jewish Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Memorial Hospital (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.
Other Orthopedic Surgeons in Saint Louis, Missouri
Dr. Clohisy's 83 Medicare procedures are below the Saint Louis average of 153. The table below compares verified procedure volumes for orthopedic surgeons practicing in Saint Louis.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Ryan Nunley | 279 | Hip, Knee |
| Dr. Christopher Palmer | 160 | Hip, Knee |
| Dr. Michael Hubbard | 144 | Hip, Knee, Shoulder |
| Dr. Coles L'hommedieu | 139 | Hip, Knee |
| Dr. Ilya Bendich | 137 | Hip, Knee |
| Dr. Christopher Mudd | 132 | Hip, 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.