Dr. Simon Greenbaum, M.D.
Contact & Location
718-918-3230
Bronx, NY 10461
Dr. Greenbaum performs more hip replacement procedures than 73% of orthopedic surgeons in New York, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #53 of 201 ranked hip surgeons in New York.
About Dr. Greenbaum
Practice. Dr. Simon Greenbaum is a board-certified orthopedic surgeon practicing in Bronx, New York. The latest annual CMS data records 54 hip replacements and 35 knee replacements, 89 procedures in all. That is #53 in New York for hip replacement. A Medicare provider since 2014.
Trend. Medicare records run from 2021 to 2024, 4 years. Volume rose from 37 procedures a year to 89, up 141%.
National context. Among 4,542 hip replacement surgeons tracked nationally, 54 procedures is above the national average of 36.
Local context. Bronx 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 | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 20 | 17 |
| 2022 | 30 | 13 |
| 2023 | 34 | 19 |
| 2024 | 54 | 35 |
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, 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. Greenbaum Compares
Procedure volume compared to the New York state average.
Volume Trend Analysis
Dr. Greenbaum's Medicare-recorded procedure volume has trended upward over 4 years, increasing 141% from 37 procedures in 2021 to 89 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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-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.
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. Greenbaum
How does Dr. Greenbaum's procedure volume compare to other New York surgeons?
Dr. Greenbaum has performed 89 Medicare-verified joint replacement procedures. This is in line with the New York average of 69 procedures per surgeon. Dr. Greenbaum ranks #84 out of 334 orthopedic surgeons in New York.
What types of joint replacement does Dr. Greenbaum perform?
Dr. Greenbaum's Medicare data shows procedures in hip replacement (54 cases) and knee replacement (35 cases).
Are there other orthopedic surgeons near Dr. Greenbaum in Bronx?
Yes. There are 8 orthopedic surgeons in Bronx 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 New York surgeons.
What does the Medicare data for Dr. Greenbaum 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, 23% to 28% for knee replacement, which puts Dr. Greenbaum's total volume across all insurers at roughly 290 to 370 procedures against the 89 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. Greenbaum's procedure volume changed over time?
Yes. Dr. Greenbaum's Medicare-recorded volume has increased from 37 procedures in 2021 to 89 in the most recent data, a 141% increase over 4 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 89 procedures in 2024.
Does Dr. Greenbaum perform more than one type of joint replacement?
Yes. Dr. Greenbaum's Medicare data shows procedures in hip replacement (54 cases), knee replacement (35 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Greenbaum affiliated with?
According to CMS facility affiliation data, Dr. Greenbaum is affiliated with St Francis Hospital, Roslyn, Huntington Hospital, Glen Cove Hospital, St Charles Hospital, North Shore University Hospital.
How does Dr. Greenbaum compare to other orthopedic surgeons in Bronx?
Among the 8 orthopedic surgeons in Bronx, Dr. Greenbaum ranks #1 by total Medicare procedure volume. Dr. Greenbaum has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Greenbaum practices?
St Francis Hospital, Roslyn (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Huntington Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Glen Cove Hospital (5 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Bronx, New York
Dr. Greenbaum's 89 Medicare procedures are above the Bronx average of 46. The table below compares verified procedure volumes for orthopedic surgeons practicing in Bronx.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeremy Loloi | 58 | Hip, Knee |
| Dr. Robert Li | 45 | Hip, Knee |
| Dr. Morteza Meftah | 44 | Hip, Knee |
| Dr. Sun Jin Kim | 39 | Knee |
| Dr. Evan Schwechter | 30 | Hip, Knee |
| Dr. John Pope | 19 | 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.