Dr. Steven Werner, D.O.
Contact & Location
623-683-8000
Phoenix, AZ 85085
Dr. Werner performs more knee replacement procedures than 93% of orthopedic surgeons in Arizona, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #10 of 152 ranked knee surgeons in Arizona.
About Dr. Werner
Practice. Dr. Steven Werner is a board-certified orthopedic surgeon practicing in Phoenix, Arizona. The latest annual CMS data records 125 knee replacements and 109 hip replacements, 234 procedures in all. That is #10 in Arizona for knee replacement. A Medicare provider since 2008.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 59 procedures a year to 234, up 297%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 125 procedures is more than 2x the national average of 45.
Local context. Phoenix has 51 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 | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 20 | 39 |
| 2014 | 63 | 88 |
| 2015 | 51 | 70 |
| 2016 | 49 | 97 |
| 2017 | 67 | 90 |
| 2018 | 67 | 107 |
| 2019 | 96 | 104 |
| 2020 | 64 | 77 |
| 2021 | 55 | 67 |
| 2022 | 73 | 101 |
| 2023 | 106 | 121 |
| 2024 | 109 | 125 |
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 23% to 28% for knee replacement, 25% to 33% for hip 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. Werner Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Werner's Medicare-recorded procedure volume has trended upward over 12 years, increasing 297% from 59 procedures in 2013 to 234 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.
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.
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.
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. Werner
How does Dr. Werner's procedure volume compare to other Arizona surgeons?
Dr. Werner has performed 234 Medicare-verified joint replacement procedures. This is more than 3x the Arizona average of 72 procedures per surgeon. Dr. Werner ranks #6 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Werner perform?
Dr. Werner's Medicare data shows procedures in knee replacement (125 cases) and hip replacement (109 cases).
How experienced is Dr. Werner with knee replacement surgery?
Dr. Werner ranks #10 in Arizona for knee replacement with 125 Medicare-verified procedures. This high ranking among 191 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Werner in Phoenix?
Yes. There are 51 orthopedic surgeons in Phoenix 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. Werner 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 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Werner's total volume across all insurers at roughly 780 to 980 procedures against the 234 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. Werner's procedure volume changed over time?
Yes. Dr. Werner's Medicare-recorded volume has increased from 59 procedures in 2013 to 234 in the most recent data, a 297% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 234 procedures in 2024.
Does Dr. Werner perform more than one type of joint replacement?
Yes. Dr. Werner's Medicare data shows procedures in knee replacement (125 cases), hip replacement (109 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Werner affiliated with?
According to CMS facility affiliation data, Dr. Werner is affiliated with Honorhealth Sonoran Crossing Medical Center, Honorhealth Deer Valley Medical Center, Honorhealth John C. Lincoln Medical Center, Honorhealth Scottsdale Shea Medical Center, Honorhealth Scottsdale Thompson Peak Med Ctr.
How does Dr. Werner compare to other orthopedic surgeons in Phoenix?
Among the 51 orthopedic surgeons in Phoenix, Dr. Werner ranks #1 by total Medicare procedure volume. Dr. Werner has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Werner practices?
Honorhealth Sonoran Crossing Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Honorhealth Deer Valley Medical Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Honorhealth John C. Lincoln Medical Center (3 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 Phoenix, Arizona
Dr. Werner's 234 Medicare procedures are above the Phoenix average of 151. The table below compares verified procedure volumes for orthopedic surgeons practicing in Phoenix.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christina Khoury | 152 | Hip, Knee |
| Dr. Steven Hattrup | 147 | Shoulder |
| Dr. Michael Wilmink | 144 | Hip, Knee |
| Dr. Kenneth Schmidt | 135 | Hip, Knee |
| Dr. Lige Kaplan | 128 | Hip, Knee |
| Dr. Joshua Silver | 115 | 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.