Dr. Karthikeyan Ponnusamy, M.D.
Dr. Karthikeyan Ponnusamy is a board-certified orthopedic surgeon practicing in Woodstock, Georgia. A Medicare provider since 2011, Dr. Ponnusamy has performed 71 Medicare-verified knee replacements (#26 in Georgia) and 32 hip replacements, for a combined total of 103 procedures.
In Georgia, Dr. Ponnusamy performs above average in knee (71 vs 40 avg), near average in hip (32 vs 33 avg).
Dr. Ponnusamy's reported Medicare volume is split between knee replacements (71 cases) and hip replacements (32 cases).
Woodstock is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Woodstock area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Ponnusamy extend back to 2018, covering 6 years of data. Over that period, recorded procedure volume increased from 26 to 103 in the most recent data, a 296% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Ponnusamy's 71 verified procedures is above the national average of 45.
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. Ponnusamy Compares
Procedure volume compared to the Georgia state average.
Contact & Location
Woodstock, GA 30189
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Ponnusamy's Medicare-recorded procedure volume has trended upward over 6 years, increasing 296% from 26 procedures in 2018 to 103 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.
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. Ponnusamy
How does Dr. Ponnusamy's procedure volume compare to other Georgia surgeons?
Dr. Ponnusamy has performed 103 Medicare-verified joint replacement procedures. This is significantly above the Georgia average of 55 procedures per surgeon. Dr. Ponnusamy ranks #31 out of 255 orthopedic surgeons in Georgia.
What types of joint replacement does Dr. Ponnusamy perform?
Dr. Ponnusamy's Medicare data shows procedures in knee replacement (71 cases) and hip replacement (32 cases).
Are there other orthopedic surgeons near Dr. Ponnusamy in Woodstock?
Yes. There are 2 orthopedic surgeons in Woodstock 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 Georgia surgeons.
What does the Medicare data for Dr. Ponnusamy 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. Ponnusamy's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 103 procedures shown here.
Has Dr. Ponnusamy's procedure volume changed over time?
Yes. Dr. Ponnusamy's Medicare-recorded volume has increased from 26 procedures in 2018 to 103 in the most recent data, a 296% increase over 6 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 103 procedures in 2023.
Does Dr. Ponnusamy perform more than one type of joint replacement?
Yes. Dr. Ponnusamy's Medicare data shows procedures in knee replacement (71 cases), hip replacement (32 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Ponnusamy affiliated with?
According to CMS facility affiliation data, Dr. Ponnusamy is affiliated with Northside Hospital Cherokee, Wellstar Kennestone Regional Medical Center.
What are the quality ratings for hospitals where Dr. Ponnusamy practices?
Northside Hospital Cherokee (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Wellstar Kennestone Regional Medical Center (4 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 Woodstock, Georgia
Dr. Ponnusamy's 103 Medicare procedures are above the Woodstock average of 98. The table below compares verified procedure volumes for orthopedic surgeons practicing in Woodstock.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Anil Thomas | 92 | Hip, Knee |
Patient Reviews & Ratings
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