Dr. Joseph Maratt, MD
Contact & Location
317-817-1200
Carmel, IN 46032
Dr. Maratt performs more knee replacement procedures than 96% of orthopedic surgeons in Indiana, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #6 of 188 ranked knee surgeons in Indiana.
About Dr. Maratt
Dr. Joseph Maratt is a board-certified orthopedic surgeon practicing in Carmel, Indiana. A Medicare provider since 2008, Dr. Maratt performed 131 Medicare-verified knee replacements (#6 in Indiana) and 58 hip replacements in the latest annual CMS data, for a combined total of 189 procedures.
In Indiana, Dr. Maratt performs well above the state average in knee (131 vs 41), above the state average in hip (58 vs 31).
Dr. Maratt's reported Medicare volume is split between knee replacements (131 cases) and hip replacements (58 cases).
Carmel is home to 13 orthopedic surgeons in the current Medicare dataset. Patients in the Carmel area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Maratt extend back to 2015, covering 10 years of data. Over that period, recorded procedure volume increased from 58 to 189 in the most recent data, a 226% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Maratt's 131 verified procedures is more than 2x the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 33 | 25 |
| 2016 | 38 | 29 |
| 2017 | 51 | 32 |
| 2018 | 37 | 50 |
| 2019 | 33 | 43 |
| 2020 | 27 | 34 |
| 2021 | 32 | 54 |
| 2022 | 48 | 78 |
| 2023 | 53 | 119 |
| 2024 | 58 | 131 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 25% to 33% for hip replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Maratt Compares
Procedure volume compared to the Indiana state average.
Volume Trend Analysis
Dr. Maratt's Medicare-recorded procedure volume has trended upward over 10 years, increasing 226% from 58 procedures in 2015 to 189 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.
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.
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. Maratt
How does Dr. Maratt's procedure volume compare to other Indiana surgeons?
Dr. Maratt has performed 189 Medicare-verified joint replacement procedures. This is more than 3x the Indiana average of 60 procedures per surgeon. Dr. Maratt ranks #6 out of 224 orthopedic surgeons in Indiana.
What types of joint replacement does Dr. Maratt perform?
Dr. Maratt's Medicare data shows procedures in knee replacement (131 cases) and hip replacement (58 cases).
How experienced is Dr. Maratt with knee replacement surgery?
Dr. Maratt ranks #6 in Indiana for knee replacement with 131 Medicare-verified procedures. This high ranking among 224 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Maratt in Carmel?
Yes. There are 13 orthopedic surgeons in Carmel 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 Indiana surgeons.
What does the Medicare data for Dr. Maratt represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Maratt's total volume across all insurers at roughly 640 to 800 procedures against the 189 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Maratt's procedure volume changed over time?
Yes. Dr. Maratt's Medicare-recorded volume has increased from 58 procedures in 2015 to 189 in the most recent data, a 226% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 189 procedures in 2024.
Does Dr. Maratt perform more than one type of joint replacement?
Yes. Dr. Maratt's Medicare data shows procedures in knee replacement (131 cases), hip replacement (58 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Maratt affiliated with?
According to CMS facility affiliation data, Dr. Maratt is affiliated with Franciscan Health Orthopedic Hospital Carmel, Franciscan Health Indianapolis, Franciscan Health Mooresville, Franciscan Health Lafayette, Hendricks Regional Health.
How does Dr. Maratt compare to other orthopedic surgeons in Carmel?
Among the 13 orthopedic surgeons in Carmel, Dr. Maratt ranks #2 by total Medicare procedure volume. Dr. Maratt is among the highest-volume surgeons in Carmel.
What are the quality ratings for hospitals where Dr. Maratt practices?
Franciscan Health Orthopedic Hospital Carmel (insufficient case volume for complication rate comparison); Franciscan Health Indianapolis (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Franciscan Health Mooresville (5 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 Carmel, Indiana
Dr. Maratt's 189 Medicare procedures are above the Carmel average of 130. The table below compares verified procedure volumes for orthopedic surgeons practicing in Carmel.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Hur | 241 | Hip, Knee |
| Dr. Kevin Condict | 163 | Hip, Knee, Shoulder |
| Dr. Philip Huang | 91 | Hip, Knee |
| Dr. Lucian Warth | 86 | Hip, Knee |
| Dr. Robert Malinzak | 78 | Hip, Knee |
| Dr. Michael Bender | 64 | Shoulder |
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.