Knee
Dr. Lisa Sienkiewicz, M.D.
Dr. Lisa Sienkiewicz is a board-certified orthopedic surgeon practicing in West Allis, Wisconsin. Dr. Sienkiewicz has performed 18 Medicare-verified knee replacements, ranking #121 in Wisconsin.
In Wisconsin, Dr. Sienkiewicz performs below average in knee (18 vs 37 avg).
Dr. Sienkiewicz's Medicare data shows a focused knee replacement practice with 18 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
West Allis is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the West Allis area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Sienkiewicz first appears in the Medicare dataset in 2023. With 1 year of recorded data, the longitudinal trend is still developing.
Dr. Sienkiewicz's 18 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. Sienkiewicz Compares
Procedure volume compared to the Wisconsin state average.
Contact & Location
West Allis, WI 53227
Verified Case Volume Trends (2013-Current)
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.
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.
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. Sienkiewicz
How does Dr. Sienkiewicz's procedure volume compare to other Wisconsin surgeons?
Dr. Sienkiewicz has performed 18 Medicare-verified joint replacement procedures. The Wisconsin average is 52 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Sienkiewicz ranks #150 out of 185 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Sienkiewicz perform?
Dr. Sienkiewicz's reported Medicare volume is focused on knee replacement, with 18 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Sienkiewicz in West Allis?
Yes. There are 3 orthopedic surgeons in West Allis 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 Wisconsin surgeons.
What does the Medicare data for Dr. Sienkiewicz 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. Sienkiewicz's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 18 procedures shown here.
Which hospitals is Dr. Sienkiewicz affiliated with?
According to CMS facility affiliation data, Dr. Sienkiewicz is affiliated with Aurora St Lukes Medical Center, Aurora West Allis Medical Center, Aurora Medical Center.
How does Dr. Sienkiewicz compare to other orthopedic surgeons in West Allis?
Among the 3 orthopedic surgeons in West Allis, Dr. Sienkiewicz ranks #3 by total Medicare procedure volume. Dr. Sienkiewicz is among the highest-volume surgeons in West Allis.
What are the quality ratings for hospitals where Dr. Sienkiewicz practices?
Aurora St Lukes Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Aurora West Allis Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Aurora Medical Center (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.
Other Orthopedic Surgeons in West Allis, Wisconsin
Dr. Sienkiewicz's 18 Medicare procedures are below the West Allis average of 38. The table below compares verified procedure volumes for orthopedic surgeons practicing in West Allis.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Michael Stoesz | 70 | Hip, Knee |
| Dr. Jeffrey Larson | 27 | Knee |
Patient Reviews & Ratings
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