Dr. Scott Colquhoun, M.D.
Contact & Location
209-579-5628
Turlock, CA 95382
Dr. Colquhoun performs more knee replacement procedures than 66% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #165 of 491 ranked knee surgeons in California.
About Dr. Colquhoun
Practice. Dr. Scott Colquhoun is an orthopedic surgeon practicing in Turlock, California. The latest annual CMS data records 45 knee replacements and 23 hip replacements, 68 procedures in all. That is #165 in California for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume peaked at 88 in 2023 and stands at 68 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 45 procedures is near the national average of 45.
Local context. Turlock has 2 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 | 27 | 59 |
| 2014 | 14 | 16 |
| 2015 | 22 | 15 |
| 2016 | 0 | 36 |
| 2017 | 22 | 54 |
| 2018 | 36 | 48 |
| 2019 | 30 | 50 |
| 2020 | 16 | 35 |
| 2021 | 23 | 36 |
| 2022 | 19 | 52 |
| 2023 | 32 | 56 |
| 2024 | 23 | 45 |
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. Colquhoun Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Colquhoun's recorded volume peaked at 88 procedures in 2023 and stood at 68 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.
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. Colquhoun
How does Dr. Colquhoun's procedure volume compare to other California surgeons?
Dr. Colquhoun has performed 68 Medicare-verified joint replacement procedures. This is in line with the California average of 68 procedures per surgeon. Dr. Colquhoun ranks #205 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Colquhoun perform?
Dr. Colquhoun's Medicare data shows procedures in knee replacement (45 cases) and hip replacement (23 cases).
Are there other orthopedic surgeons near Dr. Colquhoun in Turlock?
Yes. There are 2 orthopedic surgeons in Turlock 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 California surgeons.
What does the Medicare data for Dr. Colquhoun 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. Colquhoun's total volume across all insurers at roughly 230 to 290 procedures against the 68 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. Colquhoun's procedure volume changed over time?
Dr. Colquhoun's Medicare-recorded volume peaked at 88 procedures in 2023 and was 68 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. Colquhoun perform more than one type of joint replacement?
Yes. Dr. Colquhoun's Medicare data shows procedures in knee replacement (45 cases), hip replacement (23 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Colquhoun affiliated with?
According to CMS facility affiliation data, Dr. Colquhoun is affiliated with Oak Valley Hospital District, Emanuel Medical Center, Adventist Health Sonora.
What are the quality ratings for hospitals where Dr. Colquhoun practices?
Oak Valley Hospital District (insufficient case volume for complication rate comparison); Emanuel Medical Center (2 out of 5 CMS stars, insufficient case volume for complication rate comparison); Adventist Health Sonora (3 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 Turlock, California
Dr. Colquhoun's 68 Medicare procedures are above the Turlock average of 55. The table below compares verified procedure volumes for orthopedic surgeons practicing in Turlock.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Patrick Guerrero | 41 | 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.