Dr. Justin Roberts, M.D.
Contact & Location
602-277-6211
Phoenix, AZ 85016
About Dr. Roberts
Dr. Justin Roberts is a board-certified orthopedic surgeon practicing in Phoenix, Arizona. A Medicare provider since 2012, Dr. Roberts performed 76 Medicare-verified knee replacements in the latest annual CMS data, ranking #32 in Arizona.
In Arizona, Dr. Roberts performs above the state average in knee (76 vs 49).
Dr. Roberts's Medicare data shows a focused knee replacement practice with 76 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.
Phoenix is home to 51 orthopedic surgeons in the current Medicare dataset. Patients in the Phoenix area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Roberts extend back to 2020, covering 5 years of data. Over that period, recorded procedure volume increased from 12 to 76 in the most recent data, a 533% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Roberts's 76 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 12 |
| 2021 | 27 |
| 2022 | 29 |
| 2023 | 73 |
| 2024 | 76 |
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. Roberts Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Roberts's Medicare-recorded procedure volume has trended upward over 5 years, increasing 533% from 12 procedures in 2020 to 76 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.
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.
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. Roberts
How does Dr. Roberts's procedure volume compare to other Arizona surgeons?
Dr. Roberts has performed 76 Medicare-verified joint replacement procedures. This is in line with the Arizona average of 72 procedures per surgeon. Dr. Roberts ranks #64 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Roberts perform?
Dr. Roberts's reported Medicare volume is focused on knee replacement, with 76 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Roberts 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. Roberts 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. Roberts's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 76 procedures shown here.
Has Dr. Roberts's procedure volume changed over time?
Yes. Dr. Roberts's Medicare-recorded volume has increased from 12 procedures in 2020 to 76 in the most recent data, a 533% increase over 5 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 76 procedures in 2024.
Which hospitals is Dr. Roberts affiliated with?
According to CMS facility affiliation data, Dr. Roberts is affiliated with Banner Thunderbird Medical Center, Banner Desert Medical Center.
How does Dr. Roberts compare to other orthopedic surgeons in Phoenix?
Among the 51 orthopedic surgeons in Phoenix, Dr. Roberts ranks #17 by total Medicare procedure volume. The highest-volume surgeon in Phoenix has 234 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Roberts practices?
Banner Thunderbird Medical Center (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Banner Desert Medical Center (2 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 Phoenix, Arizona
Dr. Roberts's 76 Medicare procedures are below the Phoenix average of 145. The table below compares verified procedure volumes for orthopedic surgeons practicing in Phoenix.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Steven Werner | 234 | Hip, Knee |
| 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 |
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.