Dr. Timothy Alton, M.D.
Contact & Location
425-656-5060
Renton, WA 98055
Dr. Alton performs more knee replacement procedures than 95% of orthopedic surgeons in Washington, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #6 of 146 ranked knee surgeons in Washington.
About Dr. Alton
Practice. Dr. Timothy Alton is a board-certified orthopedic surgeon practicing in Renton, Washington. The latest annual CMS data records 105 knee replacements and 85 hip replacements, 190 procedures in all. That is #6 in Washington for knee replacement. A Medicare provider since 2010.
Trend. Medicare records run from 2016 to 2024, 8 years. Volume rose from 70 procedures a year to 190, up 171%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 105 procedures is more than 2x the national average of 45.
Local context. Renton has 5 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 27 | 43 |
| 2017 | 0 | 0 |
| 2018 | 32 | 33 |
| 2019 | 41 | 28 |
| 2020 | 57 | 34 |
| 2021 | 52 | 44 |
| 2022 | 71 | 71 |
| 2023 | 73 | 111 |
| 2024 | 85 | 105 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 25% to 33% for hip replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Alton Compares
Procedure volume compared to the Washington state average.
Volume Trend Analysis
Dr. Alton's Medicare-recorded procedure volume has trended upward over 8 years, increasing 171% from 70 procedures in 2016 to 190 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.
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 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. Alton
How does Dr. Alton's procedure volume compare to other Washington surgeons?
Dr. Alton has performed 190 Medicare-verified joint replacement procedures. This is more than 3x the Washington average of 59 procedures per surgeon. Dr. Alton ranks #3 out of 198 orthopedic surgeons in Washington.
What types of joint replacement does Dr. Alton perform?
Dr. Alton's Medicare data shows procedures in knee replacement (105 cases) and hip replacement (85 cases).
How experienced is Dr. Alton with knee replacement surgery?
Dr. Alton ranks #6 in Washington for knee replacement with 105 Medicare-verified procedures. This high ranking among 198 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Alton in Renton?
Yes. There are 5 orthopedic surgeons in Renton 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 Washington surgeons.
What does the Medicare data for Dr. Alton represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Alton's total volume across all insurers at roughly 630 to 800 procedures against the 190 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Alton's procedure volume changed over time?
Yes. Dr. Alton's Medicare-recorded volume has increased from 70 procedures in 2016 to 190 in the most recent data, a 171% increase over 8 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 190 procedures in 2024.
Does Dr. Alton perform more than one type of joint replacement?
Yes. Dr. Alton's Medicare data shows procedures in knee replacement (105 cases), hip replacement (85 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Alton affiliated with?
According to CMS facility affiliation data, Dr. Alton is affiliated with Valley Medical Center.
How does Dr. Alton compare to other orthopedic surgeons in Renton?
Among the 5 orthopedic surgeons in Renton, Dr. Alton ranks #1 by total Medicare procedure volume. Dr. Alton has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Alton practices?
Valley 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 Renton, Washington
Dr. Alton's 190 Medicare procedures are above the Renton average of 93. The table below compares verified procedure volumes for orthopedic surgeons practicing in Renton.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Prashoban Bremjit | 111 | Hip, Knee |
| Dr. Fredrick Huang | 80 | Hip, Knee |
| Dr. Andrew Merritt | 68 | Hip, Knee |
| Dr. Sean Haloman | 17 | 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.