Dr. Hayley Ennis, MD
Dr. Hayley Ennis is a board-certified orthopedic surgeon practicing in Broomfield, Colorado. A Medicare provider since 2016, Dr. Ennis has performed 33 Medicare-verified knee replacements (#64 in Colorado) and 20 hip replacements, for a combined total of 53 procedures.
In Colorado, Dr. Ennis performs below average in knee (33 vs 49 avg), below average in hip (20 vs 38 avg).
Dr. Ennis's reported Medicare volume is split between knee replacements (33 cases) and hip replacements (20 cases).
Dr. Ennis is the only orthopedic surgeon in Broomfield represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.
Medicare records for Dr. Ennis extend back to 2021, covering 3 years of data. Over that period, recorded procedure volume increased from 37 to 53 in the most recent data, a 43% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Ennis's 33 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Ennis Compares
Procedure volume compared to the Colorado state average.
Contact & Location
Broomfield, CO 80023
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Ennis's Medicare-recorded procedure volume has trended upward over 3 years, increasing 43% from 37 procedures in 2021 to 53 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.
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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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.
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. Ennis
How does Dr. Ennis's procedure volume compare to other Colorado surgeons?
Dr. Ennis has performed 53 Medicare-verified joint replacement procedures. This is in line with the Colorado average of 63 procedures per surgeon. Dr. Ennis ranks #72 out of 165 orthopedic surgeons in Colorado.
What types of joint replacement does Dr. Ennis perform?
Dr. Ennis's Medicare data shows procedures in knee replacement (33 cases) and hip replacement (20 cases).
Where is Dr. Ennis's practice located?
Dr. Ennis practices in Broomfield, Colorado. The office is located at 875 W 136th Ave, Broomfield, CO 80023. Patients in the surrounding area can consult Dr. Ennis for joint replacement evaluation.
What does the Medicare data for Dr. Ennis 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. Ennis's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 53 procedures shown here.
Has Dr. Ennis's procedure volume changed over time?
Yes. Dr. Ennis's Medicare-recorded volume has increased from 37 procedures in 2021 to 53 in the most recent data, a 43% increase over 3 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 70 procedures in 2022.
Does Dr. Ennis perform more than one type of joint replacement?
Yes. Dr. Ennis's Medicare data shows procedures in knee replacement (33 cases), hip replacement (20 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Ennis affiliated with?
According to CMS facility affiliation data, Dr. Ennis is affiliated with Uchealth Highlands Ranch Hospital, Uchealth Broomfield Hospital, University Of Colorado Hospital Authority.
What are the quality ratings for hospitals where Dr. Ennis practices?
Uchealth Highlands Ranch Hospital (5 out of 5 CMS stars, insufficient case volume for complication rate comparison); Uchealth Broomfield Hospital (5 out of 5 CMS stars, insufficient case volume for complication rate comparison); University Of Colorado Hospital Authority (5 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.
Patient Reviews & Ratings
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