Dr. Leonard Karadimas, DO
Contact & Location
810-985-4300
Port Huron, MI 48060
About Dr. Karadimas
Dr. Leonard Karadimas is a board-certified orthopedic surgeon practicing in Port Huron, Michigan. A Medicare provider since 2006, Dr. Karadimas performed 12 Medicare-verified hip replacements (#126 in Michigan) and 11 knee replacements in the latest annual CMS data, for a combined total of 23 procedures.
In Michigan, Dr. Karadimas performs below the state average in hip (12 vs 29), below the state average in knee (11 vs 34).
Dr. Karadimas's reported Medicare volume is split between hip replacements (12 cases) and knee replacements (11 cases).
Port Huron is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Port Huron area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Karadimas's Medicare data spans 12 years, beginning in 2013. Volume peaked at 69 procedures in 2014 before settling at 23 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Karadimas's 12 hip replacement procedures is below the national average of 36 among 4,532 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 56 |
| 2014 | 22 | 47 |
| 2015 | 18 | 23 |
| 2016 | 17 | 24 |
| 2017 | 18 | 17 |
| 2018 | 24 | 23 |
| 2019 | 23 | 28 |
| 2020 | 0 | 27 |
| 2021 | 17 | 28 |
| 2022 | 15 | 23 |
| 2023 | 13 | 19 |
| 2024 | 12 | 11 |
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. Karadimas Compares
Procedure volume compared to the Michigan state average.
Volume Trend Analysis
Dr. Karadimas's recorded volume peaked at 69 procedures in 2014 and stood at 23 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.
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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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.
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. Karadimas
How does Dr. Karadimas's procedure volume compare to other Michigan surgeons?
Dr. Karadimas has performed 23 Medicare-verified joint replacement procedures. The Michigan average is 49 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Karadimas ranks #182 out of 256 orthopedic surgeons in Michigan.
What types of joint replacement does Dr. Karadimas perform?
Dr. Karadimas's Medicare data shows procedures in hip replacement (12 cases) and knee replacement (11 cases).
Are there other orthopedic surgeons near Dr. Karadimas in Port Huron?
Yes. There are 6 orthopedic surgeons in Port Huron 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 Michigan surgeons.
What does the Medicare data for Dr. Karadimas 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. Karadimas's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 23 procedures shown here.
Has Dr. Karadimas's procedure volume changed over time?
Dr. Karadimas's Medicare-recorded volume peaked at 69 procedures in 2014 and was 23 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. Karadimas perform more than one type of joint replacement?
Yes. Dr. Karadimas's Medicare data shows procedures in hip replacement (12 cases), knee replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Karadimas affiliated with?
According to CMS facility affiliation data, Dr. Karadimas is affiliated with Mclaren Port Huron.
How does Dr. Karadimas compare to other orthopedic surgeons in Port Huron?
Among the 6 orthopedic surgeons in Port Huron, Dr. Karadimas ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Port Huron has 65 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Karadimas practices?
Mclaren Port Huron (2 out of 5 CMS stars, hip/knee complication rate similar to national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Port Huron, Michigan
Dr. Karadimas's 23 Medicare procedures are below the Port Huron average of 33. The table below compares verified procedure volumes for orthopedic surgeons practicing in Port Huron.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Scott Heithoff | 65 | Hip, Knee |
| Dr. William Braaksma | 47 | Hip, Knee |
| Dr. Todd Murphy | 27 | Knee, Shoulder |
| Dr. Timothy Lukas | 19 | Knee |
| Dr. Gerald Jerry | 17 | Knee |
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.