Dr. William Andersen, M.D.
Contact & Location
919-467-4992
Cary, NC 27518
About Dr. Andersen
Dr. William Andersen is a board-certified orthopedic surgeon practicing in Cary, North Carolina. A Medicare provider since 2006, Dr. Andersen performed 58 Medicare-verified knee replacements in the latest annual CMS data, ranking #54 in North Carolina.
In North Carolina, Dr. Andersen performs above the state average in knee (58 vs 44).
Dr. Andersen's Medicare data shows a focused knee replacement practice with 58 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Beyond general orthopedic surgery, Dr. Andersen holds additional credentials in Sports Medicine, reflecting subspecialty training that may benefit patients with complex joint conditions.
Cary is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Cary area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Andersen extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 25 to 58 in the most recent data, a 132% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Andersen's 58 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 25 |
| 2014 | 18 |
| 2015 | 20 |
| 2016 | 13 |
| 2017 | 25 |
| 2018 | 21 |
| 2019 | 24 |
| 2020 | 52 |
| 2021 | 37 |
| 2022 | 47 |
| 2023 | 53 |
| 2024 | 58 |
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. Andersen Compares
Procedure volume compared to the North Carolina state average.
Volume Trend Analysis
Dr. Andersen's Medicare-recorded procedure volume has trended upward over 12 years, increasing 132% from 25 procedures in 2013 to 58 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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Andersen
How does Dr. Andersen's procedure volume compare to other North Carolina surgeons?
Dr. Andersen has performed 58 Medicare-verified joint replacement procedures. This is in line with the North Carolina average of 61 procedures per surgeon. Dr. Andersen ranks #107 out of 293 orthopedic surgeons in North Carolina.
What types of joint replacement does Dr. Andersen perform?
Dr. Andersen's reported Medicare volume is focused on knee replacement, with 58 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Andersen in Cary?
Yes. There are 7 orthopedic surgeons in Cary 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. Andersen 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. Andersen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 58 procedures shown here.
Has Dr. Andersen's procedure volume changed over time?
Yes. Dr. Andersen's Medicare-recorded volume has increased from 25 procedures in 2013 to 58 in the most recent data, a 132% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 58 procedures in 2024.
Which hospitals is Dr. Andersen affiliated with?
According to CMS facility affiliation data, Dr. Andersen is affiliated with Rex Hospital.
How does Dr. Andersen compare to other orthopedic surgeons in Cary?
Among the 7 orthopedic surgeons in Cary, Dr. Andersen ranks #3 by total Medicare procedure volume. Dr. Andersen is among the highest-volume surgeons in Cary.
What are the quality ratings for hospitals where Dr. Andersen practices?
Rex 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 Cary, North Carolina
Dr. Andersen's 58 Medicare procedures are above the Cary average of 47. The table below compares verified procedure volumes for orthopedic surgeons practicing in Cary.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Stephen Struble | 67 | Hip, Knee |
| Dr. Demetri Economedes | 66 | Hip, Knee |
| Dr. Arvind Narayanan | 55 | Hip, Knee |
| Dr. Raymond Carroll | 32 | Shoulder |
| Dr. Adam Almaguer | 31 | Hip, Knee |
| Dr. Edouard Armour | 17 | 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.