Dr. Kevin Sonn, MD
Dr. Kevin Sonn is a board-certified orthopedic surgeon practicing in Fishers, Indiana. A Medicare provider since 2014, Dr. Sonn has performed 32 Medicare-verified knee replacements (#100 in Indiana) and 18 hip replacements, for a combined total of 50 procedures.
In Indiana, Dr. Sonn performs below average in knee (32 vs 44 avg), below average in hip (18 vs 32 avg).
Dr. Sonn's reported Medicare volume is split between knee replacements (32 cases) and hip replacements (18 cases).
Beyond general orthopedic surgery, Dr. Sonn holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Fishers is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Fishers area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Sonn first appears in the Medicare dataset in 2022. With 2 years of recorded data, the longitudinal trend is still developing.
Dr. Sonn's 32 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Sonn Compares
Procedure volume compared to the Indiana state average.
Contact & Location
Fishers, IN 46037
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Sonn has 2 years of Medicare procedure data beginning in 2022. Additional years of data will provide a clearer picture of volume trends.
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.
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 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. Sonn
How does Dr. Sonn's procedure volume compare to other Indiana surgeons?
Dr. Sonn has performed 50 Medicare-verified joint replacement procedures. This is in line with the Indiana average of 60 procedures per surgeon. Dr. Sonn ranks #106 out of 222 orthopedic surgeons in Indiana.
What types of joint replacement does Dr. Sonn perform?
Dr. Sonn's Medicare data shows procedures in knee replacement (32 cases) and hip replacement (18 cases).
Are there other orthopedic surgeons near Dr. Sonn in Fishers?
Yes. There are 4 orthopedic surgeons in Fishers 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. Sonn 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. Sonn's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 50 procedures shown here.
Does Dr. Sonn perform more than one type of joint replacement?
Yes. Dr. Sonn's Medicare data shows procedures in knee replacement (32 cases), hip replacement (18 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Sonn affiliated with?
According to CMS facility affiliation data, Dr. Sonn is affiliated with Indiana University Health, Indiana University Health North Hospital, Indiana University Health Tipton Hospital Inc.
How does Dr. Sonn compare to other orthopedic surgeons in Fishers?
Among the 4 orthopedic surgeons in Fishers, Dr. Sonn ranks #3 by total Medicare procedure volume. Dr. Sonn is among the highest-volume surgeons in Fishers.
What are the quality ratings for hospitals where Dr. Sonn practices?
Indiana University Health (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Indiana University Health North Hospital (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Indiana University Health Tipton Hospital Inc (insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Fishers, Indiana
Dr. Sonn's 50 Medicare procedures are below the Fishers average of 64. The table below compares verified procedure volumes for orthopedic surgeons practicing in Fishers.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Leonard Buller | 96 | Hip, Knee |
| Dr. Brian Badman | 94 | Shoulder |
| Dr. Aaron Baessler | 16 | Shoulder |
Patient Reviews & Ratings
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