Dr. Mark D'onofrio, M.D.
Contact & Location
Lancaster, OH 43130
Dr. Mark D'onofrio is a board-certified orthopedic surgeon practicing in Lancaster, Ohio. A Medicare provider since 2006, Dr. D'onofrio has completed 62 knee replacements (#64 in Ohio), 37 hip replacements, and 17 shoulder replacements, totaling 116 Medicare-verified procedures.
In Ohio, Dr. D'onofrio performs above average in knee (62 vs 41 avg), near average in hip (37 vs 32 avg), below average in shoulder (17 vs 29 avg).
Dr. D'onofrio performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (62 cases), followed by hip replacements (37) and shoulder replacements (17).
Dr. D'onofrio is the only orthopedic surgeon in Lancaster represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.
Dr. D'onofrio's Medicare record spans 12 years from 2013 through 2024. Procedure volume has remained consistent during that period, ranging from 112 to 193 procedures per year, reflecting a steady joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. D'onofrio's 62 verified procedures is above the national average of 45.
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. D'onofrio Compares
Procedure volume compared to the Ohio state average.
Volume Trend Analysis
Dr. D'onofrio's procedure volume has been consistent across 12 years of Medicare data, ranging from 112 to 193 procedures per year. This stability suggests a well-established joint replacement practice.
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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Rehabilitation Roadmap: Your Complete Recovery GuideA structured physical therapy progression from the first post-op exercises through full strength and mobility restoration over 3 to 6 months.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. D'onofrio
How does Dr. D'onofrio's procedure volume compare to other Ohio surgeons?
Dr. D'onofrio has performed 116 Medicare-verified joint replacement procedures. This is significantly above the Ohio average of 59 procedures per surgeon. Dr. D'onofrio ranks #44 out of 370 orthopedic surgeons in Ohio.
What types of joint replacement does Dr. D'onofrio perform?
Dr. D'onofrio performs all three major joint replacement procedures: knee replacement (62 cases), hip replacement (37 cases), shoulder replacement (17 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Where is Dr. D'onofrio's practice located?
Dr. D'onofrio practices in Lancaster, Ohio. The office is located at 2656 N Columbus St Ste D, Lancaster, OH 43130. Patients in the surrounding area can consult Dr. D'onofrio for joint replacement evaluation.
What does the Medicare data for Dr. D'onofrio 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. D'onofrio's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 116 procedures shown here.
Has Dr. D'onofrio's procedure volume changed over time?
Dr. D'onofrio's procedure volume has been relatively stable over 12 years of Medicare data, ranging from 112 to 193 procedures per year between 2013 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Does Dr. D'onofrio perform more than one type of joint replacement?
Yes. Dr. D'onofrio's Medicare data shows procedures in knee replacement (62 cases), hip replacement (37 cases), shoulder replacement (17 cases). Performing all three major joint replacements places Dr. D'onofrio among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. D'onofrio affiliated with?
According to CMS facility affiliation data, Dr. D'onofrio is affiliated with Fairfield Medical Center, Hocking Valley Community Hospital.
What are the quality ratings for hospitals where Dr. D'onofrio practices?
Fairfield Medical Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Hocking Valley Community Hospital (insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
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.