Dr. Geoffrey Van Flandern, M.D.
Contact & Location
781-890-2133
Waltham, MA 02451
Dr. Van Flandern performs more knee replacement procedures than 99% of orthopedic surgeons in Massachusetts, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #1 of 160 ranked knee surgeons in Massachusetts.
About Dr. Van Flandern
Practice. Dr. Geoffrey Van Flandern is a board-certified orthopedic surgeon practicing in Waltham, Massachusetts. The latest annual CMS data records 200 knee replacements and 145 hip replacements, 345 procedures in all. That is #1 in Massachusetts for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 201 procedures a year to 345, up 72%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 200 procedures is more than 4x the national average of 45. That is #57 nationally.
Local context. Waltham has 6 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 | 109 | 92 |
| 2014 | 91 | 95 |
| 2015 | 105 | 124 |
| 2016 | 120 | 128 |
| 2017 | 133 | 108 |
| 2018 | 127 | 158 |
| 2019 | 134 | 134 |
| 2020 | 110 | 117 |
| 2021 | 121 | 135 |
| 2022 | 136 | 137 |
| 2023 | 132 | 163 |
| 2024 | 145 | 200 |
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. Van Flandern Compares
Procedure volume compared to the Massachusetts state average.
Volume Trend Analysis
Dr. Van Flandern's Medicare-recorded procedure volume has trended upward over 12 years, increasing 72% from 201 procedures in 2013 to 345 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.
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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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.
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. Van Flandern
How does Dr. Van Flandern's procedure volume compare to other Massachusetts surgeons?
Dr. Van Flandern has performed 345 Medicare-verified joint replacement procedures. This is more than 4x the Massachusetts average of 74 procedures per surgeon. Dr. Van Flandern ranks #1 out of 203 orthopedic surgeons in Massachusetts.
What types of joint replacement does Dr. Van Flandern perform?
Dr. Van Flandern's Medicare data shows procedures in knee replacement (200 cases) and hip replacement (145 cases).
How experienced is Dr. Van Flandern with knee replacement surgery?
Dr. Van Flandern ranks #1 in Massachusetts for knee replacement with 200 Medicare-verified procedures. This high ranking among 203 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Van Flandern in Waltham?
Yes. There are 6 orthopedic surgeons in Waltham 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. Van Flandern 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. Van Flandern's total volume across all insurers at roughly 1,150 to 1,450 procedures against the 345 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. Van Flandern's procedure volume changed over time?
Yes. Dr. Van Flandern's Medicare-recorded volume has increased from 201 procedures in 2013 to 345 in the most recent data, a 72% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 345 procedures in 2024.
Does Dr. Van Flandern perform more than one type of joint replacement?
Yes. Dr. Van Flandern's Medicare data shows procedures in knee replacement (200 cases), hip replacement (145 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Van Flandern affiliated with?
According to CMS facility affiliation data, Dr. Van Flandern is affiliated with New England Baptist Hospital, Umass Memorial Health-Milford Regional Medical Ctr, Brigham And Women'S Hospital, Martha'S Vineyard Hospital Inc, Emerson Hospital -.
How does Dr. Van Flandern compare to other orthopedic surgeons in Waltham?
Among the 6 orthopedic surgeons in Waltham, Dr. Van Flandern ranks #1 by total Medicare procedure volume. Dr. Van Flandern has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Van Flandern practices?
New England Baptist Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Umass Memorial Health-Milford Regional Medical Ctr (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Brigham And Women'S Hospital (5 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 Waltham, Massachusetts
Dr. Van Flandern's 345 Medicare procedures are above the Waltham average of 184. The table below compares verified procedure volumes for orthopedic surgeons practicing in Waltham.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. James Nairus | 210 | Hip, Knee |
| Dr. Andrew Jawa | 183 | Shoulder |
| Dr. Andrew Braziel | 171 | Hip, Knee |
| Dr. Jacob Drew | 111 | Hip, Knee |
| Dr. Jacob Kirsch | 81 | 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.