Knee
Dr. James Rentz, MD
Dr. James Rentz is a board-certified orthopedic surgeon practicing in Rock Hill, South Carolina. Dr. Rentz has performed 19 Medicare-verified knee replacements, ranking #99 in South Carolina.
In South Carolina, Dr. Rentz performs below average in knee (19 vs 57 avg).
Dr. Rentz's Medicare data shows a focused knee replacement practice with 19 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.
Rock Hill is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Rock Hill area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Rentz's Medicare record spans 11 years from 2013 through 2023. Procedure volume has remained consistent during that period, ranging from 12 to 22 procedures per year, reflecting a steady joint replacement practice.
Dr. Rentz's 19 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. Rentz Compares
Procedure volume compared to the South Carolina state average.
Contact & Location
Rock Hill, SC 29732
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Rentz's procedure volume has been consistent across 11 years of Medicare data, ranging from 12 to 22 procedures per year. This stability suggests a well-established joint replacement practice.
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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. Rentz
How does Dr. Rentz's procedure volume compare to other South Carolina surgeons?
Dr. Rentz has performed 19 Medicare-verified joint replacement procedures. The South Carolina average is 78 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Rentz ranks #126 out of 151 orthopedic surgeons in South Carolina.
What types of joint replacement does Dr. Rentz perform?
Dr. Rentz's reported Medicare volume is focused on knee replacement, with 19 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Rentz in Rock Hill?
Yes. There are 5 orthopedic surgeons in Rock Hill 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 South Carolina surgeons.
What does the Medicare data for Dr. Rentz 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. Rentz's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 19 procedures shown here.
Has Dr. Rentz's procedure volume changed over time?
Dr. Rentz's procedure volume has been relatively stable over 11 years of Medicare data, ranging from 12 to 22 procedures per year between 2013 and 2023. Consistent volume over multiple years reflects a steady joint replacement practice.
Which hospitals is Dr. Rentz affiliated with?
According to CMS facility affiliation data, Dr. Rentz is affiliated with Atrium Health Pineville. Dr. Rentz maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Rentz compare to other orthopedic surgeons in Rock Hill?
Among the 5 orthopedic surgeons in Rock Hill, Dr. Rentz ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Rock Hill has 93 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Rentz practices?
Atrium Health Pineville (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 Rock Hill, South Carolina
Dr. Rentz's 19 Medicare procedures are below the Rock Hill average of 48. The table below compares verified procedure volumes for orthopedic surgeons practicing in Rock Hill.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Kevin Weiss | 93 | Hip, Knee |
| Dr. Matthew Duffin | 75 | Hip, Knee |
| Dr. Matthew Schwartz | 38 | Shoulder |
| Dr. Eugene Powell | 13 | Knee |
Patient Reviews & Ratings
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