Dr. Samuel Ashby, D.O.
Contact & Location
Sun City West, AZ 85375
Dr. Samuel Ashby is a board-certified orthopedic surgeon practicing in Sun City West, Arizona. A Medicare provider since 2015, Dr. Ashby has performed 94 Medicare-verified knee replacements (#18 in Arizona) and 29 hip replacements, for a combined total of 123 procedures.
In Arizona, Dr. Ashby performs above average in knee (94 vs 49 avg), below average in hip (29 vs 40 avg).
Dr. Ashby's practice is heavily focused on knee replacement surgery, which accounts for 76% of reported Medicare volume.
Sun City West is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Sun City West area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs. Dr. Ashby also maintains hospital privileges in AZ and KS, indicating a regional practice that extends beyond Arizona.
Medicare records for Dr. Ashby extend back to 2020, covering 5 years of data. Over that period, recorded procedure volume increased from 55 to 123 in the most recent data, a 124% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Ashby's 94 verified procedures is more than 2x the national average of 45.
Verified Case Volume Trends (2013-Current)
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. Ashby Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Ashby's Medicare-recorded procedure volume has trended upward over 5 years, increasing 124% from 55 procedures in 2020 to 123 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.
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.
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. Ashby
How does Dr. Ashby's procedure volume compare to other Arizona surgeons?
Dr. Ashby has performed 123 Medicare-verified joint replacement procedures. This is significantly above the Arizona average of 72 procedures per surgeon. Dr. Ashby ranks #33 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Ashby perform?
Dr. Ashby's Medicare data shows procedures in knee replacement (94 cases) and hip replacement (29 cases).
How experienced is Dr. Ashby with knee replacement surgery?
Dr. Ashby ranks #18 in Arizona for knee replacement with 94 Medicare-verified procedures. This high ranking among 191 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Ashby in Sun City West?
Yes. There are 5 orthopedic surgeons in Sun City West 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. Ashby 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. Ashby's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 123 procedures shown here.
Has Dr. Ashby's procedure volume changed over time?
Yes. Dr. Ashby's Medicare-recorded volume has increased from 55 procedures in 2020 to 123 in the most recent data, a 124% increase over 5 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 123 procedures in 2024.
Does Dr. Ashby perform more than one type of joint replacement?
Yes. Dr. Ashby's Medicare data shows procedures in knee replacement (94 cases), hip replacement (29 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Ashby affiliated with?
According to CMS facility affiliation data, Dr. Ashby is affiliated with Banner Del E. Webb Medical Center, Kansas Medical Center Llc. Dr. Ashby maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Ashby compare to other orthopedic surgeons in Sun City West?
Among the 5 orthopedic surgeons in Sun City West, Dr. Ashby ranks #1 by total Medicare procedure volume. Dr. Ashby has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Ashby practices?
Banner Del E. Webb Medical Center (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Kansas Medical Center Llc (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 Sun City West, Arizona
Dr. Ashby's 123 Medicare procedures are above the Sun City West average of 90. The table below compares verified procedure volumes for orthopedic surgeons practicing in Sun City West.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Brown | 120 | Shoulder |
| Dr. Mark Campbell | 119 | Hip, Knee |
| Dr. Brenton Albracht | 70 | Hip, Knee |
| Dr. Michael McKernan | 20 | Shoulder |
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.