Dr. Joshua Greenleaf, D.O.
Dr. Joshua Greenleaf is a board-certified orthopedic surgeon practicing in Altoona, Pennsylvania. Dr. Greenleaf has performed 37 Medicare-verified hip replacements (#76 in Pennsylvania) and 22 knee replacements, for a combined total of 59 procedures.
In Pennsylvania, Dr. Greenleaf performs near average in hip (37 vs 34 avg), below average in knee (22 vs 45 avg).
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.
Medicare records for Dr. Greenleaf extend back to 2021, covering 3 years of data. Over that period, recorded procedure volume increased from 12 to 59 in the most recent data, a 392% increase. This sustained growth reflects an expanding joint replacement practice.
Among 4,526 hip replacement surgeons tracked nationally, Dr. Greenleaf's 37 verified procedures is near the national average of 36.
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. Greenleaf Compares
Procedure volume compared to the Pennsylvania state average.
Contact & Location
Altoona, PA 16602
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Greenleaf's Medicare-recorded procedure volume has trended upward over 3 years, increasing 392% from 12 procedures in 2021 to 59 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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
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.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
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.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Greenleaf
How does Dr. Greenleaf's procedure volume compare to other Pennsylvania surgeons?
Dr. Greenleaf has 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 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. Greenleaf's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 59 procedures shown here.
Has Dr. Greenleaf's procedure volume changed over time?
Yes. Dr. Greenleaf's Medicare-recorded volume has increased from 12 procedures in 2021 to 59 in the most recent data, a 392% increase over 3 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 59 procedures in 2023.
Does Dr. Greenleaf perform more than one type of joint replacement?
Yes. Dr. Greenleaf's Medicare data shows procedures in hip replacement (37 cases), knee replacement (22 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Greenleaf affiliated with?
According to CMS facility affiliation data, Dr. Greenleaf is affiliated with Conemaugh Nason Medical Center, Upmc Altoona, Penn Highlands Dubois, Mount Nittany Medical Center, Geisinger-Lewistown Hospital.
How does Dr. Greenleaf compare to other orthopedic surgeons in Altoona?
Among the 7 orthopedic surgeons in Altoona, Dr. Greenleaf ranks #2 by total Medicare procedure volume. Dr. Greenleaf is among the highest-volume surgeons in Altoona.
What are the quality ratings for hospitals where Dr. Greenleaf practices?
Conemaugh Nason Medical Center (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Upmc Altoona (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Penn Highlands Dubois (1 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 Altoona, Pennsylvania
Dr. Greenleaf's 59 Medicare procedures are above the Altoona average of 54. The table below compares verified procedure volumes for orthopedic 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 |
Patient Reviews & Ratings
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