Dr. Mark Gardner, DO
Dr. Mark Gardner is a board-certified orthopedic surgeon practicing in Hermitage, Pennsylvania. Dr. Gardner has completed 34 knee replacements (#151 in Pennsylvania), 29 hip replacements, and 14 shoulder replacements, totaling 77 Medicare-verified procedures.
In Pennsylvania, Dr. Gardner performs below average in knee (34 vs 45 avg), near average in hip (29 vs 34 avg), below average in shoulder (14 vs 29 avg).
Dr. Gardner performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (34 cases), followed by hip replacements (29) and shoulder replacements (14).
Hermitage is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Hermitage area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Gardner extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 15 to 77 in the most recent data, a 413% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Gardner's 34 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Gardner Compares
Procedure volume compared to the Pennsylvania state average.
Contact & Location
Hermitage, PA 16148
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Gardner's Medicare-recorded procedure volume has trended upward over 11 years, increasing 413% from 15 procedures in 2013 to 77 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.
What to Expect on the Day of SurgeryA 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.
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. Gardner
How does Dr. Gardner's procedure volume compare to other Pennsylvania surgeons?
Dr. Gardner has performed 77 Medicare-verified joint replacement procedures. This is in line with the Pennsylvania average of 63 procedures per surgeon. Dr. Gardner ranks #99 out of 388 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Gardner perform?
Dr. Gardner performs all three major joint replacement procedures: knee replacement (34 cases), hip replacement (29 cases), shoulder replacement (14 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Are there other orthopedic surgeons near Dr. Gardner in Hermitage?
Yes. There are 4 orthopedic surgeons in Hermitage 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. Gardner 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. Gardner's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 77 procedures shown here.
Has Dr. Gardner's procedure volume changed over time?
Yes. Dr. Gardner's Medicare-recorded volume has increased from 15 procedures in 2013 to 77 in the most recent data, a 413% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 77 procedures in 2023.
Does Dr. Gardner perform more than one type of joint replacement?
Yes. Dr. Gardner's Medicare data shows procedures in knee replacement (34 cases), hip replacement (29 cases), shoulder replacement (14 cases). Performing all three major joint replacements places Dr. Gardner among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Gardner affiliated with?
According to CMS facility affiliation data, Dr. Gardner is affiliated with Upmc Horizon, Upmc Jameson.
How does Dr. Gardner compare to other orthopedic surgeons in Hermitage?
Among the 4 orthopedic surgeons in Hermitage, Dr. Gardner ranks #1 by total Medicare procedure volume. Dr. Gardner has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Gardner practices?
Upmc Horizon (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Upmc Jameson (3 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 Hermitage, Pennsylvania
Dr. Gardner's 77 Medicare procedures are above the Hermitage average of 43. The table below compares verified procedure volumes for orthopedic surgeons practicing in Hermitage.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Bryan Hooks | 49 | Hip, Knee |
| Dr. Brian Shannon | 33 | Hip, Knee |
| Dr. David Tonnies | 13 | Knee |
Patient Reviews & Ratings
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