Dr. Eric Janssen, M.D.
Dr. Eric Janssen is a board-certified orthopedic surgeon practicing in Huntsville, Alabama. A Medicare provider since 2006, Dr. Janssen has performed 50 Medicare-verified knee replacements (#17 in Alabama) and 19 shoulder replacements, for a combined total of 69 procedures.
In Alabama, Dr. Janssen performs above average in knee (50 vs 34 avg), near average in shoulder (19 vs 23 avg).
Dr. Janssen's reported Medicare volume is split between knee replacements (50 cases) and shoulder replacements (19 cases).
Huntsville is home to 14 orthopedic surgeons in the current Medicare dataset. Patients in the Huntsville area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Janssen's Medicare data spans 11 years, beginning in 2013. Volume peaked at 93 procedures in 2016 before settling at 69 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Janssen's 50 verified procedures is near the national average of 45.
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. Janssen Compares
Procedure volume compared to the Alabama state average.
Contact & Location
Huntsville, AL 35802
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Janssen's recorded volume peaked at 93 procedures in 2016 and stood at 69 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
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 Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Janssen
How does Dr. Janssen's procedure volume compare to other Alabama surgeons?
Dr. Janssen has performed 69 Medicare-verified joint replacement procedures. This is in line with the Alabama average of 47 procedures per surgeon. Dr. Janssen ranks #24 out of 129 orthopedic surgeons in Alabama.
What types of joint replacement does Dr. Janssen perform?
Dr. Janssen's Medicare data shows procedures in knee replacement (50 cases) and shoulder replacement (19 cases).
How experienced is Dr. Janssen with knee replacement surgery?
Dr. Janssen ranks #17 in Alabama for knee replacement with 50 Medicare-verified procedures. This high ranking among 129 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Janssen in Huntsville?
Yes. There are 14 orthopedic surgeons in Huntsville 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 Alabama surgeons.
What does the Medicare data for Dr. Janssen 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. Janssen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 69 procedures shown here.
Has Dr. Janssen's procedure volume changed over time?
Dr. Janssen's Medicare-recorded volume peaked at 93 procedures in 2016 and was 69 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. Janssen perform more than one type of joint replacement?
Yes. Dr. Janssen's Medicare data shows procedures in knee replacement (50 cases), shoulder replacement (19 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Janssen affiliated with?
According to CMS facility affiliation data, Dr. Janssen is affiliated with Crestwood Medical Center, Huntsville Hospital, Marshall Medical Centers South Campus.
How does Dr. Janssen compare to other orthopedic surgeons in Huntsville?
Among the 14 orthopedic surgeons in Huntsville, Dr. Janssen ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Huntsville has 288 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Janssen practices?
Crestwood Medical Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Huntsville Hospital (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Marshall Medical Centers South Campus (3 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 Huntsville, Alabama
Dr. Janssen's 69 Medicare procedures are below the Huntsville average of 136. The table below compares verified procedure volumes for orthopedic surgeons practicing in Huntsville.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher Parks | 288 | Hip, Knee, Shoulder |
| Dr. Bradley Wills | 176 | Hip, Knee |
| Dr. Thomas Thomasson | 141 | Hip, Knee, Shoulder |
| Dr. Matthew Clayton | 137 | Hip, Knee |
| Dr. David Griffin | 76 | Hip, Knee |
| Dr. Zachary Mosher | 68 | Hip, Knee |
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