Dr. Robert Greenhow, M.D.
Contact & Location
303-699-7325
Lone Tree, CO 80124
Englewood, CO 80112
Dr. Greenhow performs more knee replacement procedures than 72% of orthopedic surgeons in Colorado, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #32 of 118 ranked knee surgeons in Colorado.
About Dr. Greenhow
Practice. Dr. Robert Greenhow is a board-certified orthopedic surgeon practicing in Lone Tree, Colorado. The latest annual CMS data records 56 knee replacements and 40 hip replacements, 96 procedures in all. That is #32 in Colorado for knee replacement. A Medicare provider since 2006.
Trend. Dr. Greenhow first appears in the Medicare data in 2013. With 2 years on record, the trend is still short.
National context. Among 6,612 knee replacement surgeons tracked nationally, 56 procedures is above the national average of 45.
Local context. Lone Tree has 7 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume
Verified Medicare data is available for 2 years: 123 procedures in 2013 and 96 procedures in the most recent reporting year. A multi-year trend chart is shown once at least 3 years of data are available.
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. Greenhow Compares
Procedure volume compared to the Colorado state average.
Volume Trend Analysis
Dr. Greenhow has 2 years of Medicare procedure data beginning in 2013. Additional years of data will provide a clearer picture of volume trends.
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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
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 Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. Greenhow
How does Dr. Greenhow's procedure volume compare to other Colorado surgeons?
Dr. Greenhow has performed 96 Medicare-verified joint replacement procedures. This is significantly above the Colorado average of 64 procedures per surgeon. Dr. Greenhow ranks #34 out of 169 orthopedic surgeons in Colorado.
What types of joint replacement does Dr. Greenhow perform?
Dr. Greenhow's Medicare data shows procedures in knee replacement (56 cases) and hip replacement (40 cases).
Are there other orthopedic surgeons near Dr. Greenhow in Lone Tree?
Yes. There are 7 orthopedic surgeons in Lone Tree 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. Greenhow 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. Greenhow's total volume across all insurers at roughly 320 to 400 procedures against the 96 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.
Does Dr. Greenhow perform more than one type of joint replacement?
Yes. Dr. Greenhow's Medicare data shows procedures in knee replacement (56 cases), hip replacement (40 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Greenhow affiliated with?
According to CMS facility affiliation data, Dr. Greenhow is affiliated with Adventhealth Castle Rock, Adventhealth Parker, Adventhealth Littleton, Adventhealth Porter.
How does Dr. Greenhow compare to other orthopedic surgeons in Lone Tree?
Among the 7 orthopedic surgeons in Lone Tree, Dr. Greenhow ranks #3 by total Medicare procedure volume. Dr. Greenhow is among the highest-volume surgeons in Lone Tree.
What are the quality ratings for hospitals where Dr. Greenhow practices?
Adventhealth Castle Rock (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Adventhealth Parker (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Adventhealth Littleton (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 Lone Tree, Colorado
Dr. Greenhow's 96 Medicare procedures are above the Lone Tree average of 59. The table below compares verified procedure volumes for orthopedic surgeons practicing in Lone Tree.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Xenos | 121 | Hip, Knee |
| Dr. David Loucks | 112 | Hip, Knee |
| Dr. Mark Fitzgerald | 28 | Shoulder |
| Dr. Christopher Joyce | 24 | Shoulder |
| Dr. Scott Koenig | 22 | Hip |
| Dr. Edward Szuszczewicz | 13 | Hip |
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.