Dr. Zachary Weidner, M.D.
Contact & Location
Manassas, VA 20110
Dr. Zachary Weidner is a board-certified orthopedic surgeon practicing in Manassas, Virginia. A Medicare provider since 2009, Dr. Weidner has performed 29 Medicare-verified knee replacements (#112 in Virginia) and 25 hip replacements, for a combined total of 54 procedures.
In Virginia, Dr. Weidner performs below average in knee (29 vs 58 avg), below average in hip (25 vs 47 avg).
Dr. Weidner's reported Medicare volume is split between knee replacements (29 cases) and hip replacements (25 cases).
Manassas is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Manassas area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Weidner's Medicare record spans 10 years from 2014 through 2024. Procedure volume has remained consistent during that period, ranging from 12 to 78 procedures per year, reflecting a steady joint replacement practice.
Dr. Weidner's 29 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)
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. Weidner Compares
Procedure volume compared to the Virginia state average.
Volume Trend Analysis
Dr. Weidner's procedure volume has been consistent across 10 years of Medicare data, ranging from 12 to 78 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.
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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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. Weidner
How does Dr. Weidner's procedure volume compare to other Virginia surgeons?
Dr. Weidner has performed 54 Medicare-verified joint replacement procedures. The Virginia average is 82 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Weidner ranks #110 out of 229 orthopedic surgeons in Virginia.
What types of joint replacement does Dr. Weidner perform?
Dr. Weidner's Medicare data shows procedures in knee replacement (29 cases) and hip replacement (25 cases).
Are there other orthopedic surgeons near Dr. Weidner in Manassas?
Yes. There are 6 orthopedic surgeons in Manassas 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 Virginia surgeons.
What does the Medicare data for Dr. Weidner 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. Weidner's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 54 procedures shown here.
Has Dr. Weidner's procedure volume changed over time?
Dr. Weidner's procedure volume has been relatively stable over 10 years of Medicare data, ranging from 12 to 78 procedures per year between 2014 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Does Dr. Weidner perform more than one type of joint replacement?
Yes. Dr. Weidner's Medicare data shows procedures in knee replacement (29 cases), hip replacement (25 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Weidner affiliated with?
According to CMS facility affiliation data, Dr. Weidner is affiliated with Uva Health Haymarket Medical Center, Uva Health Prince William Medical Center, Inova Fair Oaks Hospital.
How does Dr. Weidner compare to other orthopedic surgeons in Manassas?
Among the 6 orthopedic surgeons in Manassas, Dr. Weidner ranks #2 by total Medicare procedure volume. Dr. Weidner is among the highest-volume surgeons in Manassas.
What are the quality ratings for hospitals where Dr. Weidner practices?
Uva Health Haymarket Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Uva Health Prince William Medical Center (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Inova Fair Oaks Hospital (5 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 Manassas, Virginia
Dr. Weidner's 54 Medicare procedures are above the Manassas average of 36. The table below compares verified procedure volumes for orthopedic surgeons practicing in Manassas.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. William Hosick | 56 | Hip, Knee |
| Dr. John Kim | 38 | Knee |
| Dr. Kevin Peltier | 29 | Shoulder |
| Dr. Aric Gardner | 25 | Knee |
| Dr. Robert Dombrowski | 13 | 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.