Dr. William Rainer, D.O.
Contact & Location
970-245-0484
Grand Junction, CO 81505
Dr. Rainer performs more hip replacement procedures than 81% of orthopedic surgeons in Colorado, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #17 of 92 ranked hip surgeons in Colorado.
About Dr. Rainer
Practice. Dr. William Rainer is a board-certified orthopedic surgeon practicing in Grand Junction, Colorado. The latest annual CMS data records 54 hip replacements and 48 knee replacements, 102 procedures in all. That is #17 in Colorado for hip replacement. A Medicare provider since 2014.
Trend. Medicare records run from 2021 to 2024, 4 years. Volume rose from 48 procedures a year to 102, up 113%.
National context. Among 4,542 hip replacement surgeons tracked nationally, 54 procedures is above the national average of 36.
Local context. Grand Junction 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 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 31 | 17 |
| 2022 | 39 | 45 |
| 2023 | 50 | 35 |
| 2024 | 54 | 48 |
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 25% to 33% for hip replacement, 23% to 28% for knee 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. Rainer Compares
Procedure volume compared to the Colorado state average.
Volume Trend Analysis
Dr. Rainer's Medicare-recorded procedure volume has trended upward over 4 years, increasing 113% from 48 procedures in 2021 to 102 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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
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.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Rainer
How does Dr. Rainer's procedure volume compare to other Colorado surgeons?
Dr. Rainer has performed 102 Medicare-verified joint replacement procedures. This is significantly above the Colorado average of 64 procedures per surgeon. Dr. Rainer ranks #29 out of 169 orthopedic surgeons in Colorado.
What types of joint replacement does Dr. Rainer perform?
Dr. Rainer's Medicare data shows procedures in hip replacement (54 cases) and knee replacement (48 cases).
How experienced is Dr. Rainer with hip replacement surgery?
Dr. Rainer ranks #17 in Colorado for hip replacement with 54 Medicare-verified procedures. This high ranking among 169 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Rainer in Grand Junction?
Yes. There are 5 orthopedic surgeons in Grand Junction 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 Colorado surgeons.
What does the Medicare data for Dr. Rainer 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 25% to 33% for hip replacement, 23% to 28% for knee replacement, which puts Dr. Rainer's total volume across all insurers at roughly 340 to 420 procedures against the 102 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. Rainer's procedure volume changed over time?
Yes. Dr. Rainer's Medicare-recorded volume has increased from 48 procedures in 2021 to 102 in the most recent data, a 113% increase over 4 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 102 procedures in 2024.
Does Dr. Rainer perform more than one type of joint replacement?
Yes. Dr. Rainer's Medicare data shows procedures in hip replacement (54 cases), knee replacement (48 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Rainer affiliated with?
According to CMS facility affiliation data, Dr. Rainer is affiliated with Community Hospital, Family Health West Hospital, Montrose Regional Health, Delta County Memorial Hospital.
How does Dr. Rainer compare to other orthopedic surgeons in Grand Junction?
Among the 5 orthopedic surgeons in Grand Junction, Dr. Rainer ranks #1 by total Medicare procedure volume. Dr. Rainer has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Rainer practices?
Community Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Family Health West Hospital (insufficient case volume for complication rate comparison); Montrose Regional Health (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 Grand Junction, Colorado
Dr. Rainer's 102 Medicare procedures are above the Grand Junction average of 55. The table below compares verified procedure volumes for orthopedic surgeons practicing in Grand Junction.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Mark Luker | 50 | Knee, Shoulder |
| Dr. Kennan Vance | 46 | Knee, Shoulder |
| Dr. Steven Gammon | 43 | Hip, Knee |
| Dr. John Rawlings | 35 | 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.