Dr. Keith Lonergan is a board-certified orthopedic surgeon practicing in Greer, South Carolina. In 2023, Dr. Lonergan performed 32 Medicare-verified shoulder replacements (#20 in South Carolina) and 27 knee replacements, for a combined total of 59 procedures.
Dr. Lonergan's 59 Medicare procedures are near the South Carolina median of 51. The state has 151 orthopedic surgeons in the current Medicare dataset. Medicare fee-for-service data captures roughly 33–37% of all joint replacements, so total surgical volume is likely higher.
Dr. Lonergan's reported Medicare volume is split between shoulder replacements (32 cases) and knee replacements (27 cases).
Greer is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Greer 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. Lonergan
How does Dr. Lonergan's procedure volume compare to other South Carolina surgeons?
In 2023, Dr. Lonergan performed 59 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. Lonergan ranks #73 out of 151 orthopedic surgeons in South Carolina.
What types of joint replacement does Dr. Lonergan perform?
Dr. Lonergan's Medicare data shows procedures in shoulder replacement (32 cases) and knee replacement (27 cases).
How experienced is Dr. Lonergan with shoulder replacement surgery?
Dr. Lonergan ranks #20 in South Carolina for shoulder replacement with 32 Medicare-verified procedures in 2023. This high ranking among 151 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Lonergan in Greer?
Yes. There are 5 orthopedic surgeons in Greer 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. Lonergan 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. Lonergan's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 59 procedures shown here.
Other Orthopedic Surgeons in Greer, South Carolina
Compare Dr. Lonergan's volume with other surgeons practicing in Greer.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Brayton Shirley | 198 | Hip, Knee |
| Dr. Frank Armocida | 169 | Hip, Knee |
| Dr. Wesley Parker | 80 | Hip, Knee |
| Dr. Thomas Leong | 17 | Knee |
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