Dr. Steven Mattheos, M.D.
Contact & Location
978-818-6350
Peabody, MA 01960
Dr. Mattheos performs more knee replacement procedures than 90% of orthopedic surgeons in Massachusetts, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #16 of 160 ranked knee surgeons in Massachusetts.
About Dr. Mattheos
Practice. Dr. Steven Mattheos is a board-certified orthopedic surgeon practicing in Peabody, Massachusetts. The latest annual CMS data records 103 knee replacements. That is #16 in Massachusetts for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 13 procedures a year to 103, up 692%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 103 procedures is more than 2x the national average of 45.
Local context. Peabody has 10 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 | Knee Replacement |
|---|---|
| 2013 | 13 |
| 2014 | 25 |
| 2015 | 45 |
| 2016 | 40 |
| 2017 | 58 |
| 2018 | 81 |
| 2019 | 91 |
| 2020 | 66 |
| 2021 | 67 |
| 2022 | 91 |
| 2023 | 92 |
| 2024 | 103 |
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. Mattheos Compares
Procedure volume compared to the Massachusetts state average.
Volume Trend Analysis
Dr. Mattheos's Medicare-recorded procedure volume has trended upward over 12 years, increasing 692% from 13 procedures in 2013 to 103 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
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 Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Mattheos
How does Dr. Mattheos's procedure volume compare to other Massachusetts surgeons?
Dr. Mattheos has performed 103 Medicare-verified joint replacement procedures. This is in line with the Massachusetts average of 74 procedures per surgeon. Dr. Mattheos ranks #53 out of 203 orthopedic surgeons in Massachusetts.
What types of joint replacement does Dr. Mattheos perform?
Dr. Mattheos's reported Medicare volume is focused on knee replacement, with 103 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Mattheos with knee replacement surgery?
Dr. Mattheos ranks #16 in Massachusetts for knee replacement with 103 Medicare-verified procedures. This high ranking among 203 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Mattheos in Peabody?
Yes. There are 10 orthopedic surgeons in Peabody 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 Massachusetts surgeons.
What does the Medicare data for Dr. Mattheos 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. Mattheos's total volume across all insurers at roughly 370 to 450 procedures against the 103 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. Mattheos's procedure volume changed over time?
Yes. Dr. Mattheos's Medicare-recorded volume has increased from 13 procedures in 2013 to 103 in the most recent data, a 692% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 103 procedures in 2024.
Which hospitals is Dr. Mattheos affiliated with?
According to CMS facility affiliation data, Dr. Mattheos is affiliated with Anna Jaques Hospital, Beverly Hospital Corporation.
How does Dr. Mattheos compare to other orthopedic surgeons in Peabody?
Among the 10 orthopedic surgeons in Peabody, Dr. Mattheos ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Peabody has 151 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Mattheos practices?
Anna Jaques Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Beverly Hospital Corporation (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.
Other Orthopedic Surgeons in Peabody, Massachusetts
Dr. Mattheos's 103 Medicare procedures are above the Peabody average of 94. The table below compares verified procedure volumes for orthopedic surgeons practicing in Peabody.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Benjamin Schwartz | 151 | Hip, Knee |
| Dr. Hugh O'flynn | 140 | Hip, Knee |
| Dr. David Fehnel | 105 | Shoulder |
| Dr. Jason Archibald | 66 | Hip, Knee |
| Dr. William Rubenstein | 57 | Hip, Knee |
| Dr. Ryan Churchill | 33 | 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.