Dr. Daniel Marchwiany, M.D.
Contact & Location
336-375-2300
Greensboro, NC 27401
About Dr. Marchwiany
Dr. Daniel Marchwiany is a board-certified orthopedic surgeon practicing in Greensboro, North Carolina. A Medicare provider since 2016, Dr. Marchwiany performed 20 Medicare-verified knee replacements (#167 in North Carolina) and 14 hip replacements in the latest annual CMS data, for a combined total of 34 procedures.
In North Carolina, Dr. Marchwiany performs below the state average in knee (20 vs 44), below the state average in hip (14 vs 33).
Dr. Marchwiany's reported Medicare volume is split between knee replacements (20 cases) and hip replacements (14 cases).
Beyond general orthopedic surgery, Dr. Marchwiany holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Greensboro is home to 17 orthopedic surgeons in the current Medicare dataset. Patients in the Greensboro area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Marchwiany's Medicare data spans 4 years, beginning in 2021. Volume peaked at 90 procedures in 2022 before settling at 34 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Marchwiany's 20 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 15 | 28 |
| 2022 | 36 | 54 |
| 2023 | 16 | 24 |
| 2024 | 14 | 20 |
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. Marchwiany Compares
Procedure volume compared to the North Carolina state average.
Volume Trend Analysis
Dr. Marchwiany's recorded volume peaked at 90 procedures in 2022 and stood at 34 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
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 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. Marchwiany
How does Dr. Marchwiany's procedure volume compare to other North Carolina surgeons?
Dr. Marchwiany has performed 34 Medicare-verified joint replacement procedures. The North Carolina average is 61 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Marchwiany ranks #178 out of 293 orthopedic surgeons in North Carolina.
What types of joint replacement does Dr. Marchwiany perform?
Dr. Marchwiany's Medicare data shows procedures in knee replacement (20 cases) and hip replacement (14 cases).
Are there other orthopedic surgeons near Dr. Marchwiany in Greensboro?
Yes. There are 17 orthopedic surgeons in Greensboro 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 North Carolina surgeons.
What does the Medicare data for Dr. Marchwiany 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. Marchwiany's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 34 procedures shown here.
Has Dr. Marchwiany's procedure volume changed over time?
Dr. Marchwiany's Medicare-recorded volume peaked at 90 procedures in 2022 and was 34 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Does Dr. Marchwiany perform more than one type of joint replacement?
Yes. Dr. Marchwiany's Medicare data shows procedures in knee replacement (20 cases), hip replacement (14 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Marchwiany affiliated with?
According to CMS facility affiliation data, Dr. Marchwiany is affiliated with Cone Health.
How does Dr. Marchwiany compare to other orthopedic surgeons in Greensboro?
Among the 17 orthopedic surgeons in Greensboro, Dr. Marchwiany ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Greensboro has 152 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Marchwiany practices?
Cone Health (4 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 Greensboro, North Carolina
Dr. Marchwiany's 34 Medicare procedures are below the Greensboro average of 67. The table below compares verified procedure volumes for orthopedic surgeons practicing in Greensboro.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Frank Aluisio | 152 | Hip, Knee |
| Dr. Matthew Olin | 89 | Hip, Knee |
| Dr. Christopher Blackman | 71 | Hip, Knee |
| Dr. Brian Swinteck | 46 | Hip, Knee |
| Dr. Kevin Supple | 45 | Shoulder |
| Dr. Dax Varkey | 32 | Shoulder |
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.