Dr. John Horneff, MD
Contact & Location
Philadelphia, PA 19107
Dr. John Horneff is a board-certified orthopedic surgeon practicing in Philadelphia, Pennsylvania. A Medicare provider since 2010, Dr. Horneff has performed 33 Medicare-verified shoulder replacements, ranking #25 in Pennsylvania.
In Pennsylvania, Dr. Horneff performs near average in shoulder (33 vs 28 avg).
Dr. Horneff's Medicare data shows a focused shoulder replacement practice with 33 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.
Philadelphia is home to 30 orthopedic surgeons in the current Medicare dataset. Patients in the Philadelphia area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Horneff extend back to 2018, covering 4 years of data. Over that period, recorded procedure volume increased from 21 to 33 in the most recent data, a 57% increase. This sustained growth reflects an expanding joint replacement practice.
Among 2,213 shoulder replacement surgeons tracked nationally, Dr. Horneff's 33 verified procedures is near the national average of 29.
Verified Case Volume Trends (2013-Current)
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. Horneff Compares
Procedure volume compared to the Pennsylvania state average.
Volume Trend Analysis
Dr. Horneff's Medicare-recorded procedure volume has trended upward over 4 years, increasing 57% from 21 procedures in 2018 to 33 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 Shoulder Replacement
If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:
A step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
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.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Horneff
How does Dr. Horneff's procedure volume compare to other Pennsylvania surgeons?
Dr. Horneff has performed 33 Medicare-verified joint replacement procedures. The Pennsylvania average is 66 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Horneff ranks #244 out of 376 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Horneff perform?
Dr. Horneff's reported Medicare volume is focused on shoulder replacement, with 33 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Horneff in Philadelphia?
Yes. There are 30 orthopedic surgeons in Philadelphia 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. Horneff 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. Horneff's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 33 procedures shown here.
Has Dr. Horneff's procedure volume changed over time?
Yes. Dr. Horneff's Medicare-recorded volume has increased from 21 procedures in 2018 to 33 in the most recent data, a 57% increase over 4 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 40 procedures in 2023.
Which hospitals is Dr. Horneff affiliated with?
According to CMS facility affiliation data, Dr. Horneff is affiliated with Pennsylvania Hospital, Penn Presbyterian Medical Center, Hospital Of Univ Of Pennsylvania.
How does Dr. Horneff compare to other orthopedic surgeons in Philadelphia?
Among the 30 orthopedic surgeons in Philadelphia, Dr. Horneff ranks #23 by total Medicare procedure volume. The highest-volume surgeon in Philadelphia has 200 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Horneff practices?
Pennsylvania Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Penn Presbyterian Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Hospital Of Univ Of Pennsylvania (5 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Philadelphia, Pennsylvania
Dr. Horneff's 33 Medicare procedures are below the Philadelphia average of 148. The table below compares verified procedure volumes for orthopedic surgeons practicing in Philadelphia.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher Melnic | 200 | Hip, Knee |
| Dr. Craig Israelite | 195 | Hip, Knee |
| Dr. James Purtill | 171 | Hip, Knee |
| Dr. Stephen Sizer | 165 | Hip, Knee |
| Dr. Neil Sheth | 138 | Hip, Knee |
| Dr. Charles Nelson | 137 | Hip, Knee |
Patient Resources & Verification
Research reviews, verify credentials, and check official quality data through these trusted sources:
Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.