Dr. David Stewart, MD
Contact & Location
480-899-4333
Chandler, AZ 85286
Dr. Stewart performs more knee replacement procedures than 19% of orthopedic surgeons in Arizona, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #122 of 152 ranked knee surgeons in Arizona.
About Dr. Stewart
Dr. David Stewart is a board-certified orthopedic surgeon practicing in Chandler, Arizona. A Medicare provider since 2006, Dr. Stewart performed 19 Medicare-verified knee replacements in the latest annual CMS data, ranking #122 in Arizona.
In Arizona, Dr. Stewart performs below the state average in knee (19 vs 49).
Dr. Stewart's Medicare data shows a focused knee replacement practice with 19 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.
Chandler is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Chandler area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Stewart extend back to 2019, covering 4 years of data. Over that period, recorded procedure volume increased from 14 to 19 in the most recent data, a 36% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Stewart's 19 knee replacement procedures is below the national average of 45 among 6,612 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 14 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 15 |
| 2023 | 13 |
| 2024 | 19 |
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. 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. Stewart Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Stewart's Medicare-recorded procedure volume has trended upward over 4 years, increasing 36% from 14 procedures in 2019 to 19 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. Stewart
How does Dr. Stewart's procedure volume compare to other Arizona surgeons?
Dr. Stewart has performed 19 Medicare-verified joint replacement procedures. The Arizona average is 72 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Stewart ranks #162 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Stewart perform?
Dr. Stewart's reported Medicare volume is focused on knee replacement, with 19 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Stewart in Chandler?
Yes. There are 6 orthopedic surgeons in Chandler 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. Stewart 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, which puts Dr. Stewart's total volume across all insurers at roughly 70 to 80 procedures against the 19 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. Stewart's procedure volume changed over time?
Yes. Dr. Stewart's Medicare-recorded volume has increased from 14 procedures in 2019 to 19 in the most recent data, a 36% increase over 4 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 19 procedures in 2024.
Which hospitals is Dr. Stewart affiliated with?
According to CMS facility affiliation data, Dr. Stewart is affiliated with Mercy Gilbert Medical Center.
How does Dr. Stewart compare to other orthopedic surgeons in Chandler?
Among the 6 orthopedic surgeons in Chandler, Dr. Stewart ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Chandler has 148 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Stewart practices?
Mercy Gilbert Medical 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 Chandler, Arizona
Dr. Stewart's 19 Medicare procedures are below the Chandler average of 55. The table below compares verified procedure volumes for orthopedic surgeons practicing in Chandler.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Danton Dungy | 148 | Hip, Knee |
| Dr. Jonathan Fox | 84 | Hip, Knee, Shoulder |
| Dr. Shelden Martin | 44 | Knee, Shoulder |
| Dr. Eric Eifler | 21 | Knee |
| Dr. Doug Clouse | 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.