Dr. Bert Callahan, MD
Dr. Bert Callahan is a board-certified orthopedic surgeon practicing in Waupun, Wisconsin. Dr. Callahan has performed 32 Medicare-verified knee replacements (#68 in Wisconsin) and 20 hip replacements, for a combined total of 52 procedures.
In Wisconsin, Dr. Callahan performs near average in knee (32 vs 37 avg), below average in hip (20 vs 29 avg).
Dr. Callahan's reported Medicare volume is split between knee replacements (32 cases) and hip replacements (20 cases).
Dr. Callahan is the only orthopedic surgeon in Waupun 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. Callahan extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 43 to 52 in the most recent data, a 21% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Callahan's 32 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. Callahan Compares
Procedure volume compared to the Wisconsin state average.
Contact & Location
Waupun, WI 53963
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Callahan's Medicare-recorded procedure volume has trended upward over 11 years, increasing 21% from 43 procedures in 2013 to 52 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
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.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Callahan
How does Dr. Callahan's procedure volume compare to other Wisconsin surgeons?
Dr. Callahan has performed 52 Medicare-verified joint replacement procedures. This is in line with the Wisconsin average of 52 procedures per surgeon. Dr. Callahan ranks #71 out of 185 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Callahan perform?
Dr. Callahan's Medicare data shows procedures in knee replacement (32 cases) and hip replacement (20 cases).
Where is Dr. Callahan's practice located?
Dr. Callahan practices in Waupun, Wisconsin. The office is located at 608 W Brown St, Waupun, WI 53963. Patients in the surrounding area can consult Dr. Callahan for joint replacement evaluation.
What does the Medicare data for Dr. Callahan 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. Callahan's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 52 procedures shown here.
Has Dr. Callahan's procedure volume changed over time?
Yes. Dr. Callahan's Medicare-recorded volume has increased from 43 procedures in 2013 to 52 in the most recent data, a 21% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 76 procedures in 2015.
Does Dr. Callahan perform more than one type of joint replacement?
Yes. Dr. Callahan's Medicare data shows procedures in knee replacement (32 cases), hip replacement (20 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Callahan affiliated with?
According to CMS facility affiliation data, Dr. Callahan is affiliated with Ssm Health Waupun Memorial Hospital, Ssm Health St Agnes Hospital-Fond Du Lac.
What are the quality ratings for hospitals where Dr. Callahan practices?
Ssm Health Waupun Memorial Hospital (insufficient case volume for complication rate comparison); Ssm Health St Agnes Hospital-Fond Du Lac (4 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.
Patient Reviews & Ratings
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