Dr. William Paterson, M.D.
Contact & Location
480-964-2908
Gilbert, AZ 85234
Gilbert, AZ 85297
Dr. Paterson performs more shoulder replacement procedures than 93% of orthopedic surgeons in Arizona, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #4 of 62 ranked shoulder surgeons in Arizona.
About Dr. Paterson
Practice. Dr. William Paterson is an orthopedic surgeon practicing in Gilbert, Arizona. The latest annual CMS data records 69 shoulder replacements. That is #4 in Arizona for shoulder replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 13 procedures a year to 69, up 431%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 69 procedures is more than 2x the national average of 29. That is #124 nationally.
Local context. Gilbert has 19 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Shoulder Replacement |
|---|---|
| 2013 | 13 |
| 2014 | 32 |
| 2015 | 28 |
| 2016 | 32 |
| 2017 | 36 |
| 2018 | 53 |
| 2019 | 65 |
| 2020 | 55 |
| 2021 | 57 |
| 2022 | 68 |
| 2023 | 66 |
| 2024 | 69 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 29% to 37% for shoulder replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Paterson Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Paterson's Medicare-recorded procedure volume has trended upward over 12 years, increasing 431% from 13 procedures in 2013 to 69 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 Shoulder Replacement
If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:
A step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
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 Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Paterson
How does Dr. Paterson's procedure volume compare to other Arizona surgeons?
Dr. Paterson has performed 69 Medicare-verified joint replacement procedures. This is in line with the Arizona average of 72 procedures per surgeon. Dr. Paterson ranks #73 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Paterson perform?
Dr. Paterson's reported Medicare volume is focused on shoulder replacement, with 69 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Paterson with shoulder replacement surgery?
Dr. Paterson ranks #4 in Arizona for shoulder replacement with 69 Medicare-verified procedures. This high ranking among 191 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Paterson in Gilbert?
Yes. There are 19 orthopedic surgeons in Gilbert 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 Arizona surgeons.
What does the Medicare data for Dr. Paterson represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 29% to 37% for shoulder replacement, which puts Dr. Paterson's total volume across all insurers at roughly 190 to 240 procedures against the 69 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Paterson's procedure volume changed over time?
Yes. Dr. Paterson's Medicare-recorded volume has increased from 13 procedures in 2013 to 69 in the most recent data, a 431% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 69 procedures in 2024.
Which hospitals is Dr. Paterson affiliated with?
According to CMS facility affiliation data, Dr. Paterson is affiliated with Arizona Spine And Joint Hospital, Mercy Gilbert Medical Center, Chandler Regional Medical Center.
How does Dr. Paterson compare to other orthopedic surgeons in Gilbert?
Among the 19 orthopedic surgeons in Gilbert, Dr. Paterson ranks #8 by total Medicare procedure volume. The highest-volume surgeon in Gilbert has 193 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Paterson practices?
Arizona Spine And Joint Hospital (hip/knee complication rate similar to national average); Mercy Gilbert Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Chandler Regional Medical Center (4 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Gilbert, Arizona
Dr. Paterson's 69 Medicare procedures are below the Gilbert average of 120. The table below compares verified procedure volumes for orthopedic surgeons practicing in Gilbert.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher Bryce | 193 | Hip, Knee |
| Dr. Maxwell Thomas | 170 | Hip, Knee |
| Dr. Steven Myerthall | 149 | Hip, Knee |
| Dr. Joseph Nelson | 93 | Hip, Knee |
| Dr. Earl Feng | 87 | Hip, Knee |
| Dr. Justin Woodruff | 78 | 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.