Dr. Kevin Sonn, MD
Contact & Location
Fishers, IN 46037
Dr. Kevin Sonn is a board-certified orthopedic surgeon practicing in Fishers, Indiana. A Medicare provider since 2014, Dr. Sonn has performed 44 Medicare-verified knee replacements (#61 in Indiana) and 15 hip replacements, for a combined total of 59 procedures.
In Indiana, Dr. Sonn performs near average in knee (44 vs 41 avg), below average in hip (15 vs 31 avg).
Dr. Sonn's practice is heavily focused on knee replacement surgery, which accounts for 75% of reported Medicare volume.
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.
Medicare records for Dr. Sonn extend back to 2022, covering 3 years of data. Over that period, recorded procedure volume increased from 43 to 59 in the most recent data, a 37% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Sonn's 44 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. Sonn Compares
Procedure volume compared to the Indiana state average.
Volume Trend Analysis
Dr. Sonn's Medicare-recorded procedure volume has trended upward over 3 years, increasing 37% from 43 procedures in 2022 to 59 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.
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 59 Medicare-verified joint replacement procedures. This is in line with the Indiana average of 60 procedures per surgeon. Dr. Sonn ranks #95 out of 224 orthopedic surgeons in Indiana.
What types of joint replacement does Dr. Sonn perform?
Dr. Sonn's Medicare data shows procedures in knee replacement (44 cases) and hip replacement (15 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 59 procedures shown here.
Has Dr. Sonn's procedure volume changed over time?
Yes. Dr. Sonn's Medicare-recorded volume has increased from 43 procedures in 2022 to 59 in the most recent data, a 37% increase over 3 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 59 procedures in 2024.
Does Dr. Sonn perform more than one type of joint replacement?
Yes. Dr. Sonn's Medicare data shows procedures in knee replacement (44 cases), hip replacement (15 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 59 Medicare procedures are above the Fishers average of 57. The table below compares verified procedure volumes for orthopedic surgeons practicing in Fishers.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Brian Badman | 83 | Shoulder |
| Dr. Leonard Buller | 75 | Hip, Knee |
| Dr. Aaron Baessler | 12 | 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.