Dr. Francis Ennis, MD
Contact & Location
Greenwich, CT 06831
Dr. Francis Ennis is a board-certified orthopedic surgeon practicing in Greenwich, Connecticut. A Medicare provider since 2006, Dr. Ennis has performed 38 Medicare-verified knee replacements (#24 in Connecticut) and 11 hip replacements, for a combined total of 49 procedures.
In Connecticut, Dr. Ennis performs near average in knee (38 vs 33 avg), below average in hip (11 vs 32 avg).
Dr. Ennis's practice is heavily focused on knee replacement surgery, which accounts for 78% of reported Medicare volume.
Greenwich is home to 9 orthopedic surgeons in the current Medicare dataset. Patients in the Greenwich area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Ennis's Medicare data spans 12 years, beginning in 2013. Volume peaked at 129 procedures in 2015 before settling at 49 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Ennis's 38 verified procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
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. Ennis Compares
Procedure volume compared to the Connecticut state average.
Volume Trend Analysis
Dr. Ennis's recorded volume peaked at 129 procedures in 2015 and stood at 49 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
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.
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. Ennis
How does Dr. Ennis's procedure volume compare to other Connecticut surgeons?
Dr. Ennis has performed 49 Medicare-verified joint replacement procedures. This is in line with the Connecticut average of 49 procedures per surgeon. Dr. Ennis ranks #38 out of 94 orthopedic surgeons in Connecticut.
What types of joint replacement does Dr. Ennis perform?
Dr. Ennis's Medicare data shows procedures in knee replacement (38 cases) and hip replacement (11 cases).
Are there other orthopedic surgeons near Dr. Ennis in Greenwich?
Yes. There are 9 orthopedic surgeons in Greenwich 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 Connecticut surgeons.
What does the Medicare data for Dr. Ennis 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. Ennis's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 49 procedures shown here.
Has Dr. Ennis's procedure volume changed over time?
Dr. Ennis's Medicare-recorded volume peaked at 129 procedures in 2015 and was 49 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Does Dr. Ennis perform more than one type of joint replacement?
Yes. Dr. Ennis's Medicare data shows procedures in knee replacement (38 cases), hip replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
How does Dr. Ennis compare to other orthopedic surgeons in Greenwich?
Among the 9 orthopedic surgeons in Greenwich, Dr. Ennis ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Greenwich has 116 verified Medicare procedures.
Other Orthopedic Surgeons in Greenwich, Connecticut
Dr. Ennis's 49 Medicare procedures are below the Greenwich average of 73. The table below compares verified procedure volumes for orthopedic surgeons practicing in Greenwich.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jonathan Berliner | 116 | Hip, Knee |
| Dr. Michael Held | 79 | Hip, Knee |
| Dr. Kevin Choo | 78 | Hip, Knee |
| Dr. Brian Kavanagh | 73 | Hip, Knee |
| Dr. Seth Miller | 73 | Shoulder |
| Dr. Paul Sethi | 40 | 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.