Dr. Bert Callahan, MD
Contact & Location
Waupun, WI 53963
Dr. Bert Callahan is a board-certified orthopedic surgeon practicing in Waupun, Wisconsin. A Medicare provider since 2006, Dr. Callahan has performed 36 Medicare-verified knee replacements (#53 in Wisconsin) and 13 shoulder replacements, for a combined total of 49 procedures.
In Wisconsin, Dr. Callahan performs near average in knee (36 vs 36 avg), below average in shoulder (13 vs 25 avg).
Dr. Callahan's reported Medicare volume is split between knee replacements (36 cases) and shoulder replacements (13 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.
Dr. Callahan's Medicare record spans 12 years from 2013 through 2024. Procedure volume has remained consistent during that period, ranging from 12 to 76 procedures per year, reflecting a steady joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Callahan's 36 verified procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
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.
Volume Trend Analysis
Dr. Callahan's procedure volume has been consistent across 12 years of Medicare data, ranging from 12 to 76 procedures per year. This stability suggests a well-established joint replacement practice.
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 49 Medicare-verified joint replacement procedures. This is in line with the Wisconsin average of 51 procedures per surgeon. Dr. Callahan ranks #83 out of 189 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Callahan perform?
Dr. Callahan's Medicare data shows procedures in knee replacement (36 cases) and shoulder replacement (13 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 49 procedures shown here.
Has Dr. Callahan's procedure volume changed over time?
Dr. Callahan's procedure volume has been relatively stable over 12 years of Medicare data, ranging from 12 to 76 procedures per year between 2013 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Does Dr. Callahan perform more than one type of joint replacement?
Yes. Dr. Callahan's Medicare data shows procedures in knee replacement (36 cases), shoulder replacement (13 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 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.