Dr. William Petersen, M.D., M.P.H.
Contact & Location
703-810-5215
Arlington, VA 22205
About Dr. Petersen
Dr. William Petersen is a board-certified orthopedic surgeon practicing in Arlington, Virginia. A Medicare provider since 2013, Dr. Petersen performed 77 Medicare-verified hip replacements (#16 in Virginia) and 60 knee replacements in the latest annual CMS data, for a combined total of 137 procedures.
In Virginia, Dr. Petersen performs above the state average in hip (77 vs 47), near the state average in knee (60 vs 58).
Dr. Petersen's reported Medicare volume is split between hip replacements (77 cases) and knee replacements (60 cases).
Arlington is home to 17 orthopedic surgeons in the current Medicare dataset. Patients in the Arlington area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Petersen extend back to 2020, covering 5 years of data. Over that period, recorded procedure volume increased from 31 to 137 in the most recent data, a 342% increase. This sustained growth reflects an expanding joint replacement practice.
Among 4,532 hip replacement surgeons tracked nationally, Dr. Petersen's 77 verified procedures is more than 2x the national average of 36.
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 | 17 | 14 |
| 2021 | 37 | 25 |
| 2022 | 57 | 32 |
| 2023 | 61 | 43 |
| 2024 | 77 | 60 |
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. Petersen Compares
Procedure volume compared to the Virginia state average.
Volume Trend Analysis
Dr. Petersen's Medicare-recorded procedure volume has trended upward over 5 years, increasing 342% from 31 procedures in 2020 to 137 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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
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.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Petersen
How does Dr. Petersen's procedure volume compare to other Virginia surgeons?
Dr. Petersen has performed 137 Medicare-verified joint replacement procedures. This is significantly above the Virginia average of 82 procedures per surgeon. Dr. Petersen ranks #41 out of 229 orthopedic surgeons in Virginia.
What types of joint replacement does Dr. Petersen perform?
Dr. Petersen's Medicare data shows procedures in hip replacement (77 cases) and knee replacement (60 cases).
How experienced is Dr. Petersen with hip replacement surgery?
Dr. Petersen ranks #16 in Virginia for hip replacement with 77 Medicare-verified procedures. This high ranking among 229 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Petersen in Arlington?
Yes. There are 17 orthopedic surgeons in Arlington 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. Petersen 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. Petersen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 137 procedures shown here.
Has Dr. Petersen's procedure volume changed over time?
Yes. Dr. Petersen's Medicare-recorded volume has increased from 31 procedures in 2020 to 137 in the most recent data, a 342% increase over 5 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 137 procedures in 2024.
Does Dr. Petersen perform more than one type of joint replacement?
Yes. Dr. Petersen's Medicare data shows procedures in hip replacement (77 cases), knee replacement (60 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Petersen affiliated with?
According to CMS facility affiliation data, Dr. Petersen is affiliated with Virginia Hospital Center.
How does Dr. Petersen compare to other orthopedic surgeons in Arlington?
Among the 17 orthopedic surgeons in Arlington, Dr. Petersen ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Arlington has 280 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Petersen practices?
Virginia Hospital Center (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 Arlington, Virginia
Dr. Petersen's 137 Medicare procedures are below the Arlington average of 183. The table below compares verified procedure volumes for orthopedic surgeons practicing in Arlington.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Blake Peterson | 280 | Hip, Knee |
| Dr. Robert Sershon | 259 | Hip, Knee |
| Dr. David Romness | 202 | Hip, Knee |
| Dr. Daniel Gerscovich | 146 | Hip, Knee |
| Dr. Nigel Azer | 142 | Hip, Knee |
| Dr. C Engh | 112 | 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.