Dr. Joshua Greenleaf is a board-certified orthopedic surgeon practicing in Altoona, Pennsylvania. In 2023, Dr. Greenleaf performed 37 Medicare-verified hip replacements (#76 in Pennsylvania) and 22 knee replacements, for a combined total of 59 procedures.
Dr. Greenleaf's 59 Medicare procedures are near the Pennsylvania median of 44. The state has 388 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. Greenleaf's reported Medicare volume is split between hip replacements (37 cases) and knee replacements (22 cases).
Altoona is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Altoona 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. Greenleaf
How does Dr. Greenleaf's procedure volume compare to other Pennsylvania surgeons?
In 2023, Dr. Greenleaf performed 59 Medicare-verified joint replacement procedures. This is in line with the Pennsylvania average of 63 procedures per surgeon. Dr. Greenleaf ranks #144 out of 388 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Greenleaf perform?
Dr. Greenleaf's Medicare data shows procedures in hip replacement (37 cases) and knee replacement (22 cases).
Are there other orthopedic surgeons near Dr. Greenleaf in Altoona?
Yes. There are 7 orthopedic surgeons in Altoona 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 Pennsylvania surgeons.
What does the Medicare data for Dr. Greenleaf 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. Greenleaf's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 59 procedures shown here.
Other Orthopedic Surgeons in Altoona, Pennsylvania
Compare Dr. Greenleaf's volume with other surgeons practicing in Altoona.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher McClellan | 177 | Hip, Knee |
| Dr. William Tyndall | 47 | Knee, Shoulder |
| Dr. Joshua Port | 42 | Knee, Shoulder |
| Dr. Jonathan Van Kleunen | 29 | Hip, Knee |
| Dr. Robert Singer | 15 | Knee |
| Dr. Charles Harvey | 12 | Hip |
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Altoona, PA 16602