Dr. William Rainer, D.O.
Dr. William Rainer is a board-certified orthopedic surgeon practicing in Grand Junction, Colorado. A Medicare provider since 2014, Dr. Rainer has performed 50 Medicare-verified hip replacements (#17 in Colorado) and 35 knee replacements, for a combined total of 85 procedures.
In Colorado, Dr. Rainer performs above average in hip (50 vs 38 avg), below average in knee (35 vs 49 avg).
Dr. Rainer's reported Medicare volume is split between hip replacements (50 cases) and knee replacements (35 cases).
Grand Junction is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Grand Junction area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Rainer extend back to 2021, covering 3 years of data. Over that period, recorded procedure volume increased from 48 to 85 in the most recent data, a 77% increase. This sustained growth reflects an expanding joint replacement practice.
Among 4,526 hip replacement surgeons tracked nationally, Dr. Rainer's 50 verified procedures is above the national average of 36.
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. Rainer Compares
Procedure volume compared to the Colorado state average.
Contact & Location
Grand Junction, CO 81505
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Rainer's Medicare-recorded procedure volume has trended upward over 3 years, increasing 77% from 48 procedures in 2021 to 85 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 85 Medicare-verified joint replacement procedures. This is in line with the Colorado average of 63 procedures per surgeon. Dr. Rainer ranks #40 out of 165 orthopedic surgeons in Colorado.
What types of joint replacement does Dr. Rainer perform?
Dr. Rainer's Medicare data shows procedures in hip replacement (50 cases) and knee replacement (35 cases).
How experienced is Dr. Rainer with hip replacement surgery?
Dr. Rainer ranks #17 in Colorado for hip replacement with 50 Medicare-verified procedures. This high ranking among 165 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Rainer in Grand Junction?
Yes. There are 4 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 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. Rainer's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 85 procedures shown here.
Has Dr. Rainer's procedure volume changed over time?
Yes. Dr. Rainer's Medicare-recorded volume has increased from 48 procedures in 2021 to 85 in the most recent data, a 77% increase over 3 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 85 procedures in 2023.
Does Dr. Rainer perform more than one type of joint replacement?
Yes. Dr. Rainer's Medicare data shows procedures in hip replacement (50 cases), knee replacement (35 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.
How does Dr. Rainer compare to other orthopedic surgeons in Grand Junction?
Among the 4 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). 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 85 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 | 54 | Knee, Shoulder |
| Dr. Steven Gammon | 43 | Hip, Knee |
| Dr. Kennan Vance | 37 | Knee, Shoulder |
Patient Reviews & Ratings
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