Hip
Dr. Alan Gegenheimer, D.O.
Dr. Alan Gegenheimer is a board-certified orthopedic surgeon practicing in Pleasant Prairie, Wisconsin. Dr. Gegenheimer has performed 13 Medicare-verified hip replacements, ranking #101 in Wisconsin.
In Wisconsin, Dr. Gegenheimer performs below average in hip (13 vs 29 avg).
Dr. Gegenheimer's Medicare data shows a focused hip replacement practice with 13 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.
Pleasant Prairie is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Pleasant Prairie area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Gegenheimer's Medicare data spans 3 years, beginning in 2021. Volume peaked at 32 procedures in 2022 before settling at 13 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Gegenheimer's 13 hip replacement procedures is below the national average of 36 among 4,526 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. Gegenheimer Compares
Procedure volume compared to the Wisconsin state average.
Contact & Location
Pleasant Prairie, WI 53158
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Gegenheimer's recorded volume peaked at 32 procedures in 2022 and stood at 13 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
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.
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. Gegenheimer
How does Dr. Gegenheimer's procedure volume compare to other Wisconsin surgeons?
Dr. Gegenheimer has performed 13 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. Gegenheimer ranks #163 out of 185 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Gegenheimer perform?
Dr. Gegenheimer's reported Medicare volume is focused on hip replacement, with 13 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Gegenheimer in Pleasant Prairie?
Yes. There are 3 orthopedic surgeons in Pleasant Prairie 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. Gegenheimer 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. Gegenheimer's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 13 procedures shown here.
Has Dr. Gegenheimer's procedure volume changed over time?
Dr. Gegenheimer's Medicare-recorded volume peaked at 32 procedures in 2022 and was 13 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Which hospitals is Dr. Gegenheimer affiliated with?
According to CMS facility affiliation data, Dr. Gegenheimer is affiliated with Froedtert Pleasant Prairie Hospital.
How does Dr. Gegenheimer compare to other orthopedic surgeons in Pleasant Prairie?
Among the 3 orthopedic surgeons in Pleasant Prairie, Dr. Gegenheimer ranks #2 by total Medicare procedure volume. Dr. Gegenheimer is among the highest-volume surgeons in Pleasant Prairie.
What are the quality ratings for hospitals where Dr. Gegenheimer practices?
Froedtert Pleasant Prairie Hospital (1 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 Pleasant Prairie, Wisconsin
Dr. Gegenheimer's 13 Medicare procedures are below the Pleasant Prairie average of 21. The table below compares verified procedure volumes for orthopedic surgeons practicing in Pleasant Prairie.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Scott Simmons | 39 | Knee |
| Dr. Mhd Alsawaf | 11 | Shoulder |
Patient Reviews & Ratings
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