Dr. Matthew Walker, M.D.
Contact & Location
317-884-5200
Greenwood, IN 46143
Dr. Walker performs more shoulder replacement procedures than 30% of orthopedic surgeons in Indiana, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #48 of 69 ranked shoulder surgeons in Indiana.
About Dr. Walker
Practice. Dr. Matthew Walker is a board-certified orthopedic surgeon practicing in Greenwood, Indiana. The latest annual CMS data records 15 shoulder replacements. That is #48 in Indiana for shoulder replacement. A Medicare provider since 2012.
Trend. Medicare records run from 2020 to 2024, 5 years. Volume rose from 12 procedures a year to 15, up 25%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 15 procedures is below the national average of 29. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Greenwood has 8 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Shoulder Replacement |
|---|---|
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 12 |
| 2021 | 11 |
| 2022 | 12 |
| 2023 | 18 |
| 2024 | 15 |
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. Walker Compares
Procedure volume compared to the Indiana state average.
Volume Trend Analysis
Dr. Walker's Medicare-recorded procedure volume has trended upward over 5 years, increasing 25% from 12 procedures in 2020 to 15 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:
A step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
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 Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Walker
How does Dr. Walker's procedure volume compare to other Indiana surgeons?
Dr. Walker has performed 15 Medicare-verified joint replacement procedures. The Indiana average is 60 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Walker ranks #197 out of 224 orthopedic surgeons in Indiana.
What types of joint replacement does Dr. Walker perform?
Dr. Walker's reported Medicare volume is focused on shoulder replacement, with 15 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Walker in Greenwood?
Yes. There are 8 orthopedic surgeons in Greenwood 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 Indiana surgeons.
What does the Medicare data for Dr. Walker 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. Walker's total volume across all insurers at roughly 40 to 50 procedures against the 15 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. Walker's procedure volume changed over time?
Yes. Dr. Walker's Medicare-recorded volume has increased from 12 procedures in 2020 to 15 in the most recent data, a 25% increase over 5 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 18 procedures in 2023.
Which hospitals is Dr. Walker affiliated with?
According to CMS facility affiliation data, Dr. Walker is affiliated with Orthoindy Hospital, Hendricks Regional Health, Columbus Regional Hospital, Community Hospital South.
How does Dr. Walker compare to other orthopedic surgeons in Greenwood?
Among the 8 orthopedic surgeons in Greenwood, Dr. Walker ranks #8 by total Medicare procedure volume. The highest-volume surgeon in Greenwood has 80 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Walker practices?
Orthoindy Hospital (hip/knee complication rate similar to national average); Hendricks Regional Health (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Columbus Regional 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 Greenwood, Indiana
Dr. Walker's 15 Medicare procedures are below the Greenwood average of 42. The table below compares verified procedure volumes for orthopedic surgeons practicing in Greenwood.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Benjamin Justice | 80 | Hip, Knee |
| Dr. Eric Monesmith | 68 | Hip, Knee |
| Dr. Gregory Slabaugh | 43 | Knee |
| Dr. Mitchell Beckert | 38 | Hip, Knee |
| Dr. Ryan Nixon | 36 | Knee, Shoulder |
| Dr. Matthew Lavery | 17 | Shoulder |
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.