Dr. Chad Hills, DO
Dr. Chad Hills is a board-certified orthopedic surgeon practicing in Tucson, Arizona. A Medicare provider since 2008, Dr. Hills has performed 65 Medicare-verified knee replacements (#40 in Arizona) and 55 hip replacements, for a combined total of 120 procedures.
In Arizona, Dr. Hills performs above average in knee (65 vs 49 avg), above average in hip (55 vs 37 avg).
Dr. Hills's reported Medicare volume is split between knee replacements (65 cases) and hip replacements (55 cases).
Tucson is home to 27 orthopedic surgeons in the current Medicare dataset. Patients in the Tucson area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Hills extend back to 2020, covering 4 years of data. Over that period, recorded procedure volume increased from 48 to 120 in the most recent data, a 150% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Hills's 65 verified procedures is above the national average of 45.
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. Hills Compares
Procedure volume compared to the Arizona state average.
Contact & Location
Tucson, AZ 85712
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Hills's Medicare-recorded procedure volume has trended upward over 4 years, increasing 150% from 48 procedures in 2020 to 120 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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
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 Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. Hills
How does Dr. Hills's procedure volume compare to other Arizona surgeons?
Dr. Hills has performed 120 Medicare-verified joint replacement procedures. This is significantly above the Arizona average of 68 procedures per surgeon. Dr. Hills ranks #33 out of 193 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Hills perform?
Dr. Hills's Medicare data shows procedures in knee replacement (65 cases) and hip replacement (55 cases).
Are there other orthopedic surgeons near Dr. Hills in Tucson?
Yes. There are 27 orthopedic surgeons in Tucson 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. Hills 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. Hills's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 120 procedures shown here.
Has Dr. Hills's procedure volume changed over time?
Yes. Dr. Hills's Medicare-recorded volume has increased from 48 procedures in 2020 to 120 in the most recent data, a 150% increase over 4 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 120 procedures in 2023.
Does Dr. Hills perform more than one type of joint replacement?
Yes. Dr. Hills's Medicare data shows procedures in knee replacement (65 cases), hip replacement (55 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Hills affiliated with?
According to CMS facility affiliation data, Dr. Hills is affiliated with Tucson Medical Center.
How does Dr. Hills compare to other orthopedic surgeons in Tucson?
Among the 27 orthopedic surgeons in Tucson, Dr. Hills ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Tucson has 229 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Hills practices?
Tucson Medical Center (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 Tucson, Arizona
Dr. Hills's 120 Medicare procedures are below the Tucson average of 156. The table below compares verified procedure volumes for orthopedic surgeons practicing in Tucson.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Russell Cohen | 229 | Hip, Knee |
| Dr. John Maltry | 178 | Hip, Knee |
| Dr. John Wild | 178 | Hip, Knee |
| Dr. Michael Miller | 158 | Hip, Knee |
| Dr. Timothy Dixon | 114 | Hip, Knee |
| Dr. Jordan Smith | 112 | Hip |
Patient Reviews & Ratings
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