Dr. Geoffrey Van Flandern, MD
Contact & Location
781-890-2133
Waltham, MA 02451
About Dr. Van Flandern
Dr. Geoffrey Van Flandern is a board-certified orthopedic surgeon practicing in Waltham, Massachusetts. A Medicare provider since 2006, Dr. Van Flandern performed 200 Medicare-verified knee replacements (#1 in Massachusetts) and 145 hip replacements in the latest annual CMS data, for a combined total of 345 procedures.
In Massachusetts, Dr. Van Flandern performs well above the state average in knee (200 vs 50), well above the state average in hip (145 vs 44).
Dr. Van Flandern's reported Medicare volume is split between knee replacements (200 cases) and hip replacements (145 cases).
Beyond general orthopedic surgery, Dr. Van Flandern holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Waltham is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Waltham area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Van Flandern extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 201 to 345 in the most recent data, a 72% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Van Flandern's 200 verified procedures is more than 4x the national average of 45, ranking #57 nationally.
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 represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.
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 the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Van Flandern's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 345 procedures shown here.
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, Martha'S Vineyard Hospital Inc.
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); Martha'S Vineyard Hospital Inc (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 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.