Dr. Mark Klaassen, MD
Dr. Mark Klaassen is a board-certified orthopedic surgeon practicing in Elkhart, Indiana. A Medicare provider since 2006, Dr. Klaassen has completed 72 knee replacements (#27 in Indiana), 63 hip replacements, and 12 shoulder replacements, totaling 147 Medicare-verified procedures.
In Indiana, Dr. Klaassen performs above average in knee (72 vs 44 avg), above average in hip (63 vs 32 avg), below average in shoulder (12 vs 23 avg).
Dr. Klaassen performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (72 cases), followed by hip replacements (63) and shoulder replacements (12).
Elkhart is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Elkhart area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Klaassen extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 109 to 147 in the most recent data, a 35% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Klaassen's 72 verified procedures is above 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. Klaassen Compares
Procedure volume compared to the Indiana state average.
Contact & Location
Elkhart, IN 46514
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Klaassen's Medicare-recorded procedure volume has trended upward over 11 years, increasing 35% from 109 procedures in 2013 to 147 in the most recent data.
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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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. Klaassen
How does Dr. Klaassen's procedure volume compare to other Indiana surgeons?
Dr. Klaassen has performed 147 Medicare-verified joint replacement procedures. This is more than 2x the Indiana average of 60 procedures per surgeon. Dr. Klaassen ranks #14 out of 222 orthopedic surgeons in Indiana.
What types of joint replacement does Dr. Klaassen perform?
Dr. Klaassen performs all three major joint replacement procedures: knee replacement (72 cases), hip replacement (63 cases), shoulder replacement (12 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Are there other orthopedic surgeons near Dr. Klaassen in Elkhart?
Yes. There are 6 orthopedic surgeons in Elkhart 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 Indiana surgeons.
What does the Medicare data for Dr. Klaassen 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. Klaassen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 147 procedures shown here.
Has Dr. Klaassen's procedure volume changed over time?
Yes. Dr. Klaassen's Medicare-recorded volume has increased from 109 procedures in 2013 to 147 in the most recent data, a 35% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 164 procedures in 2019.
Does Dr. Klaassen perform more than one type of joint replacement?
Yes. Dr. Klaassen's Medicare data shows procedures in knee replacement (72 cases), hip replacement (63 cases), shoulder replacement (12 cases). Performing all three major joint replacements places Dr. Klaassen among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
How does Dr. Klaassen compare to other orthopedic surgeons in Elkhart?
Among the 6 orthopedic surgeons in Elkhart, Dr. Klaassen ranks #1 by total Medicare procedure volume. Dr. Klaassen has the highest verified Medicare volume in the city.
Other Orthopedic Surgeons in Elkhart, Indiana
Dr. Klaassen's 147 Medicare procedures are above the Elkhart average of 49. The table below compares verified procedure volumes for orthopedic surgeons practicing in Elkhart.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Craig Erekson | 93 | Hip, Knee, Shoulder |
| Dr. Skyler King | 15 | Knee |
| Dr. Jacob Hinkley | 14 | Hip |
| Dr. Jeffrey Sonntag | 14 | Shoulder |
| Dr. Jon Smucker | 13 | Shoulder |
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