Dr. Timothy Dixon, MD
Contact & Location
520-885-6701
Tucson, AZ 85710
About Dr. Dixon
Dr. Timothy Dixon is a board-certified orthopedic surgeon practicing in Tucson, Arizona. A Medicare provider since 2006, Dr. Dixon performed 65 Medicare-verified knee replacements (#38 in Arizona) and 52 hip replacements in the latest annual CMS data, for a combined total of 117 procedures.
In Arizona, Dr. Dixon performs above the state average in knee (65 vs 49), above the state average in hip (52 vs 40).
Dr. Dixon's reported Medicare volume is split between knee replacements (65 cases) and hip replacements (52 cases).
Beyond general orthopedic surgery, Dr. Dixon holds additional credentials in Hand Surgery and Adult Reconstructive Orthopaedic Surgery and Foot and Ankle Surgery and Sports Medicine and Orthopaedic Trauma, reflecting subspecialty training that may benefit patients with complex joint conditions.
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. Dixon extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 70 to 117 in the most recent data, a 67% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Dixon's 65 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 23 | 47 |
| 2014 | 45 | 46 |
| 2015 | 36 | 41 |
| 2016 | 40 | 60 |
| 2017 | 46 | 62 |
| 2018 | 41 | 46 |
| 2019 | 48 | 53 |
| 2020 | 33 | 54 |
| 2021 | 47 | 56 |
| 2022 | 65 | 78 |
| 2023 | 44 | 70 |
| 2024 | 52 | 65 |
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. Dixon Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Dixon's Medicare-recorded procedure volume has trended upward over 12 years, increasing 67% from 70 procedures in 2013 to 117 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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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. Dixon
How does Dr. Dixon's procedure volume compare to other Arizona surgeons?
Dr. Dixon has performed 117 Medicare-verified joint replacement procedures. This is significantly above the Arizona average of 72 procedures per surgeon. Dr. Dixon ranks #40 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Dixon perform?
Dr. Dixon's Medicare data shows procedures in knee replacement (65 cases) and hip replacement (52 cases).
Are there other orthopedic surgeons near Dr. Dixon 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. Dixon 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. Dixon's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 117 procedures shown here.
Has Dr. Dixon's procedure volume changed over time?
Yes. Dr. Dixon's Medicare-recorded volume has increased from 70 procedures in 2013 to 117 in the most recent data, a 67% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 143 procedures in 2022.
Does Dr. Dixon perform more than one type of joint replacement?
Yes. Dr. Dixon's Medicare data shows procedures in knee replacement (65 cases), hip replacement (52 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Dixon affiliated with?
According to CMS facility affiliation data, Dr. Dixon is affiliated with St Joseph'S Hospital, Tucson Medical Center.
How does Dr. Dixon compare to other orthopedic surgeons in Tucson?
Among the 27 orthopedic surgeons in Tucson, Dr. Dixon ranks #8 by total Medicare procedure volume. The highest-volume surgeon in Tucson has 213 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Dixon practices?
St Joseph'S Hospital (2 out of 5 CMS stars, hip/knee complication rate similar to national average); 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. Dixon's 117 Medicare procedures are below the Tucson average of 158. The table below compares verified procedure volumes for orthopedic surgeons practicing in Tucson.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Russell Cohen | 213 | Hip, Knee |
| Dr. Michael Miller | 170 | Hip, Knee |
| Dr. John Wild | 169 | Hip, Knee |
| Dr. John Maltry | 160 | Hip, Knee |
| Dr. Edward Petrow | 145 | Hip, Knee |
| Dr. Chad Hills | 135 | 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.