Knee
Dr. John Pomponi, D.O.
Dr. John Pomponi is a board-certified orthopedic surgeon practicing in Merrillville, Indiana. A Medicare provider since 2007, Dr. Pomponi has performed 22 Medicare-verified knee replacements, ranking #141 in Indiana.
In Indiana, Dr. Pomponi performs below average in knee (22 vs 44 avg).
Dr. Pomponi's Medicare data shows a focused knee replacement practice with 22 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Beyond general orthopedic surgery, Dr. Pomponi holds additional credentials in General Acute Care Hospital, reflecting subspecialty training that may benefit patients with complex joint conditions.
Merrillville is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Merrillville area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Pomponi extend back to 2013, covering 8 years of data. Over that period, recorded procedure volume increased from 12 to 22 in the most recent data, a 83% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Pomponi's 22 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. Pomponi Compares
Procedure volume compared to the Indiana state average.
Contact & Location
Merrillville, IN 46410
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Pomponi's Medicare-recorded procedure volume has trended upward over 8 years, increasing 83% from 12 procedures in 2013 to 22 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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
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.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Pomponi
How does Dr. Pomponi's procedure volume compare to other Indiana surgeons?
Dr. Pomponi has performed 22 Medicare-verified joint replacement procedures. The Indiana average is 60 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Pomponi ranks #168 out of 222 orthopedic surgeons in Indiana.
What types of joint replacement does Dr. Pomponi perform?
Dr. Pomponi's reported Medicare volume is focused on knee replacement, with 22 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Pomponi in Merrillville?
Yes. There are 4 orthopedic surgeons in Merrillville 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. Pomponi 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. Pomponi's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 22 procedures shown here.
Has Dr. Pomponi's procedure volume changed over time?
Yes. Dr. Pomponi's Medicare-recorded volume has increased from 12 procedures in 2013 to 22 in the most recent data, a 83% increase over 8 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 31 procedures in 2022.
Which hospitals is Dr. Pomponi affiliated with?
According to CMS facility affiliation data, Dr. Pomponi is affiliated with Methodist Hospitals Inc, Community Hospital.
How does Dr. Pomponi compare to other orthopedic surgeons in Merrillville?
Among the 4 orthopedic surgeons in Merrillville, Dr. Pomponi ranks #3 by total Medicare procedure volume. Dr. Pomponi is among the highest-volume surgeons in Merrillville.
What are the quality ratings for hospitals where Dr. Pomponi practices?
Methodist Hospitals Inc (1 out of 5 CMS stars, insufficient case volume for complication rate comparison); Community Hospital (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 Merrillville, Indiana
Dr. Pomponi's 22 Medicare procedures are below the Merrillville average of 41. The table below compares verified procedure volumes for orthopedic surgeons practicing in Merrillville.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Scott Andrews | 98 | Hip, Knee, Shoulder |
| Dr. Kenneth Ham | 30 | Hip, Knee |
| Dr. Judson Wood | 12 | Knee |
Patient Reviews & Ratings
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