Dr. Matthew Colligan, D.O.
Dr. Matthew Colligan is a board-certified orthopedic surgeon practicing in Green Bay, Wisconsin. Dr. Colligan has performed 44 Medicare-verified knee replacements (#40 in Wisconsin) and 11 hip replacements, for a combined total of 55 procedures.
In Wisconsin, Dr. Colligan performs near average in knee (44 vs 37 avg), below average in hip (11 vs 29 avg).
Dr. Colligan's practice is heavily focused on knee replacement surgery, which accounts for 80% of reported Medicare volume.
Green Bay is home to 17 orthopedic surgeons in the current Medicare dataset. Patients in the Green Bay area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Colligan's Medicare data spans 11 years, beginning in 2013. Volume peaked at 141 procedures in 2014 before settling at 55 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Colligan's 44 verified procedures is near the national average of 45.
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. Colligan Compares
Procedure volume compared to the Wisconsin state average.
Contact & Location
Green Bay, WI 54303
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Colligan's recorded volume peaked at 141 procedures in 2014 and stood at 55 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 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. Colligan
How does Dr. Colligan's procedure volume compare to other Wisconsin surgeons?
Dr. Colligan has performed 55 Medicare-verified joint replacement procedures. This is in line with the Wisconsin average of 52 procedures per surgeon. Dr. Colligan ranks #67 out of 185 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Colligan perform?
Dr. Colligan's Medicare data shows procedures in knee replacement (44 cases) and hip replacement (11 cases).
Are there other orthopedic surgeons near Dr. Colligan in Green Bay?
Yes. There are 17 orthopedic surgeons in Green Bay 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. Colligan 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. Colligan's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 55 procedures shown here.
Has Dr. Colligan's procedure volume changed over time?
Dr. Colligan's Medicare-recorded volume peaked at 141 procedures in 2014 and was 55 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.
Does Dr. Colligan perform more than one type of joint replacement?
Yes. Dr. Colligan's Medicare data shows procedures in knee replacement (44 cases), hip replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Colligan affiliated with?
According to CMS facility affiliation data, Dr. Colligan is affiliated with St Marys Hospital Medical Ctr.
How does Dr. Colligan compare to other orthopedic surgeons in Green Bay?
Among the 17 orthopedic surgeons in Green Bay, Dr. Colligan ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Green Bay has 111 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Colligan practices?
St Marys Hospital Medical Ctr (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.
Other Orthopedic Surgeons in Green Bay, Wisconsin
Dr. Colligan's 55 Medicare procedures are below the Green Bay average of 76. The table below compares verified procedure volumes for orthopedic surgeons practicing in Green Bay.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Kirk Dimitris | 111 | Hip, Knee |
| Dr. Michael Schnaubelt | 99 | Hip, Knee |
| Dr. Michael Tressler | 86 | Hip, Knee, Shoulder |
| Dr. Kenneth Kleist | 69 | Hip, Knee |
| Dr. Walker Flannery | 64 | Hip, Knee |
| Dr. Gordon Roedel | 46 | Hip, Knee |
Patient Reviews & Ratings
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