Dr. Katherine Mistretta, MD
Dr. Katherine Mistretta is a board-certified orthopedic surgeon practicing in Saint Louis, Missouri. A Medicare provider since 2018, Dr. Mistretta has performed 23 Medicare-verified knee replacements (#102 in Missouri) and 20 hip replacements, for a combined total of 43 procedures.
In Missouri, Dr. Mistretta performs below average in knee (23 vs 43 avg), below average in hip (20 vs 30 avg).
Dr. Mistretta's reported Medicare volume is split between knee replacements (23 cases) and hip replacements (20 cases).
Saint Louis is home to 50 orthopedic surgeons in the current Medicare dataset. Patients in the Saint Louis area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Mistretta first appears in the Medicare dataset in 2023. With 1 year of recorded data, the longitudinal trend is still developing.
Dr. Mistretta's 23 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. Mistretta Compares
Procedure volume compared to the Missouri state average.
Contact & Location
Saint Louis, MO 63110
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.
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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. Mistretta
How does Dr. Mistretta's procedure volume compare to other Missouri surgeons?
Dr. Mistretta has performed 43 Medicare-verified joint replacement procedures. The Missouri average is 56 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Mistretta ranks #92 out of 199 orthopedic surgeons in Missouri.
What types of joint replacement does Dr. Mistretta perform?
Dr. Mistretta's Medicare data shows procedures in knee replacement (23 cases) and hip replacement (20 cases).
Are there other orthopedic surgeons near Dr. Mistretta in Saint Louis?
Yes. There are 50 orthopedic surgeons in Saint Louis 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 Missouri surgeons.
What does the Medicare data for Dr. Mistretta 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. Mistretta's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 43 procedures shown here.
Does Dr. Mistretta perform more than one type of joint replacement?
Yes. Dr. Mistretta's Medicare data shows procedures in knee replacement (23 cases), hip replacement (20 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Mistretta affiliated with?
According to CMS facility affiliation data, Dr. Mistretta is affiliated with Mary Hitchcock Memorial Hospital, Alice Peck Day Memorial Hospital. Dr. Mistretta maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Mistretta compare to other orthopedic surgeons in Saint Louis?
Among the 50 orthopedic surgeons in Saint Louis, Dr. Mistretta ranks #24 by total Medicare procedure volume. The highest-volume surgeon in Saint Louis has 263 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Mistretta practices?
Mary Hitchcock Memorial Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Alice Peck Day Memorial Hospital (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 Saint Louis, Missouri
Dr. Mistretta's 43 Medicare procedures are below the Saint Louis average of 135. The table below compares verified procedure volumes for orthopedic surgeons practicing in Saint Louis.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Ryan Nunley | 263 | Hip, Knee |
| Dr. Michael Hubbard | 135 | Hip, Knee, Shoulder |
| Dr. Christopher Mudd | 130 | Hip, Knee |
| Dr. Ilya Bendich | 128 | Hip, Knee |
| Dr. Coles L'hommedieu | 122 | Hip, Knee |
| Dr. Christopher Palmer | 121 | Hip, Knee |
Patient Reviews & Ratings
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