Dr. Matthew Lorei, M.D.
Contact & Location
215-707-2111
Philadelphia, PA 19140
Dr. Lorei performs more knee replacement procedures than 61% of orthopedic surgeons in Pennsylvania, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #118 of 308 ranked knee surgeons in Pennsylvania.
About Dr. Lorei
Practice. Dr. Matthew Lorei is a board-certified orthopedic surgeon practicing in Philadelphia, Pennsylvania. The latest annual CMS data records 42 knee replacements and 20 hip replacements, 62 procedures in all. That is #118 in Pennsylvania for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 32 procedures a year to 62, up 94%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 42 procedures is near the national average of 45.
Local context. Philadelphia has 30 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 | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 14 | 18 |
| 2014 | 23 | 26 |
| 2015 | 29 | 35 |
| 2016 | 24 | 26 |
| 2017 | 31 | 27 |
| 2018 | 24 | 30 |
| 2019 | 31 | 35 |
| 2020 | 16 | 35 |
| 2021 | 26 | 43 |
| 2022 | 20 | 38 |
| 2023 | 20 | 45 |
| 2024 | 20 | 42 |
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, 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. Lorei Compares
Procedure volume compared to the Pennsylvania state average.
Volume Trend Analysis
Dr. Lorei's Medicare-recorded procedure volume has trended upward over 12 years, increasing 94% from 32 procedures in 2013 to 62 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.
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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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.
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. Lorei
How does Dr. Lorei's procedure volume compare to other Pennsylvania surgeons?
Dr. Lorei has performed 62 Medicare-verified joint replacement procedures. This is in line with the Pennsylvania average of 66 procedures per surgeon. Dr. Lorei ranks #134 out of 376 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Lorei perform?
Dr. Lorei's Medicare data shows procedures in knee replacement (42 cases) and hip replacement (20 cases).
Are there other orthopedic surgeons near Dr. Lorei in Philadelphia?
Yes. There are 30 orthopedic surgeons in Philadelphia 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 Pennsylvania surgeons.
What does the Medicare data for Dr. Lorei 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, 25% to 33% for hip replacement, which puts Dr. Lorei's total volume across all insurers at roughly 210 to 260 procedures against the 62 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. Lorei's procedure volume changed over time?
Yes. Dr. Lorei's Medicare-recorded volume has increased from 32 procedures in 2013 to 62 in the most recent data, a 94% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 69 procedures in 2021.
Does Dr. Lorei perform more than one type of joint replacement?
Yes. Dr. Lorei's Medicare data shows procedures in knee replacement (42 cases), hip replacement (20 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Lorei affiliated with?
According to CMS facility affiliation data, Dr. Lorei is affiliated with Temple University Hospital, Temple Health - Chestnut Hill Hospital, Hospital Of The Fox Chase Cancer Center.
How does Dr. Lorei compare to other orthopedic surgeons in Philadelphia?
Among the 30 orthopedic surgeons in Philadelphia, Dr. Lorei ranks #11 by total Medicare procedure volume. The highest-volume surgeon in Philadelphia has 200 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Lorei practices?
Temple University Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Temple Health - Chestnut Hill Hospital (2 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 Philadelphia, Pennsylvania
Dr. Lorei's 62 Medicare procedures are below the Philadelphia average of 153. The table below compares verified procedure volumes for orthopedic surgeons practicing in Philadelphia.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher Melnic | 200 | Hip, Knee |
| Dr. Craig Israelite | 195 | Hip, Knee |
| Dr. James Purtill | 171 | Hip, Knee |
| Dr. Stephen Sizer | 165 | Hip, Knee |
| Dr. Neil Sheth | 138 | Hip, Knee |
| Dr. Charles Nelson | 137 | 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.