Dr. Carl Wallis, MD
Contact & Location
702-565-6565
Henderson, NV 89052
About Dr. Wallis
Dr. Carl Wallis is a board-certified orthopedic surgeon practicing in Henderson, Nevada. A Medicare provider since 2013, Dr. Wallis completed 24 knee replacements (#30 in Nevada), 20 hip replacements, and 20 shoulder replacements in the latest annual CMS data, totaling 64 Medicare-verified procedures.
In Nevada, Dr. Wallis performs below the state average in knee (24 vs 40), below the state average in hip (20 vs 38), below the state average in shoulder (20 vs 29).
Dr. Wallis performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (24 cases), followed by hip replacements (20) and shoulder replacements (20).
Henderson is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Henderson area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Wallis's Medicare data spans 6 years, beginning in 2018. Volume peaked at 111 procedures in 2019 before settling at 64 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Wallis's 24 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement | Shoulder Replacement |
|---|---|---|---|
| 2013 | 0 | 0 | 0 |
| 2014 | 0 | 0 | 0 |
| 2015 | 0 | 0 | 0 |
| 2016 | 0 | 0 | 0 |
| 2017 | 0 | 0 | 0 |
| 2018 | 23 | 48 | 0 |
| 2019 | 39 | 72 | 0 |
| 2020 | 0 | 0 | 0 |
| 2021 | 15 | 12 | 0 |
| 2022 | 12 | 11 | 0 |
| 2023 | 13 | 26 | 12 |
| 2024 | 20 | 24 | 20 |
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. Wallis Compares
Procedure volume compared to the Nevada state average.
Volume Trend Analysis
Dr. Wallis's recorded volume peaked at 111 procedures in 2019 and stood at 64 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. Wallis
How does Dr. Wallis's procedure volume compare to other Nevada surgeons?
Dr. Wallis has performed 64 Medicare-verified joint replacement procedures. This is in line with the Nevada average of 67 procedures per surgeon. Dr. Wallis ranks #24 out of 58 orthopedic surgeons in Nevada.
What types of joint replacement does Dr. Wallis perform?
Dr. Wallis performs all three major joint replacement procedures: knee replacement (24 cases), hip replacement (20 cases), shoulder replacement (20 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Are there other orthopedic surgeons near Dr. Wallis in Henderson?
Yes. There are 5 orthopedic surgeons in Henderson 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 Nevada surgeons.
What does the Medicare data for Dr. Wallis 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. Wallis's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 64 procedures shown here.
Has Dr. Wallis's procedure volume changed over time?
Dr. Wallis's Medicare-recorded volume peaked at 111 procedures in 2019 and was 64 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Does Dr. Wallis perform more than one type of joint replacement?
Yes. Dr. Wallis's Medicare data shows procedures in knee replacement (24 cases), hip replacement (20 cases), shoulder replacement (20 cases). Performing all three major joint replacements places Dr. Wallis among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Wallis affiliated with?
According to CMS facility affiliation data, Dr. Wallis is affiliated with Saint Rose Dominican Hospitals - Siena Campus, West Henderson Hospital.
How does Dr. Wallis compare to other orthopedic surgeons in Henderson?
Among the 5 orthopedic surgeons in Henderson, Dr. Wallis ranks #3 by total Medicare procedure volume. Dr. Wallis is among the highest-volume surgeons in Henderson.
What are the quality ratings for hospitals where Dr. Wallis practices?
Saint Rose Dominican Hospitals - Siena Campus (2 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 Henderson, Nevada
Dr. Wallis's 64 Medicare procedures are below the Henderson average of 74. The table below compares verified procedure volumes for orthopedic surgeons practicing in Henderson.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Robert Tait | 195 | Hip, Knee, Shoulder |
| Dr. Steven Hoer | 69 | Hip, Knee |
| Dr. Ronald Koe | 29 | Knee |
| Dr. Haines Paik | 11 | 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.