Dr. John Mariani is a board-certified orthopedic surgeon practicing in Sewell, New Jersey. In 2023, Dr. Mariani performed 78 Medicare-verified knee replacements, ranking #31 in New Jersey.
Dr. Mariani's combined volume of 78 procedures places them above the New Jersey statewide average of 71. Among 182 orthopedic surgeons in New Jersey, Dr. Mariani ranks #53 overall.
Dr. Mariani's Medicare data shows a focused knee replacement practice with 78 verified procedures in 2023. 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.
Sewell is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Sewell area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Verified Medicare Cases (2023)
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.
Hospital Affiliations
Verified Case Volume Trends (2013-2023)
Frequently Asked Questions About Dr. Mariani
How does Dr. Mariani's procedure volume compare to other New Jersey surgeons?
In 2023, Dr. Mariani performed 78 Medicare-verified joint replacement procedures. This is in line with the New Jersey average of 71 procedures per surgeon. Dr. Mariani ranks #53 out of 182 orthopedic surgeons in New Jersey.
What types of joint replacement does Dr. Mariani perform?
Dr. Mariani's reported Medicare volume is focused on knee replacement, with 78 verified procedures in 2023. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Mariani in Sewell?
Yes. There are 2 orthopedic surgeons in Sewell 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 New Jersey surgeons.
What does the Medicare data for Dr. Mariani represent?
The procedure counts shown are based on Medicare Part B fee-for-service claims data for 2023, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Mariani's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 78 procedures shown here.
Other Orthopedic Surgeons in Sewell, New Jersey
Compare Dr. Mariani's volume with other surgeons practicing in Sewell.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeffrey Murray | 24 | Shoulder |
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View Recovery ProductsContact & Location
Sewell, NJ 08080