Dr. Teresa Mariani, M.D.
Contact & Location
203-755-0163
Waterbury, CT 06708
Dr. Mariani performs more knee replacement procedures than 4% of orthopedic surgeons in Connecticut, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #64 of 67 ranked knee surgeons in Connecticut.
About Dr. Mariani
Practice. Dr. Teresa Mariani is a board-certified orthopedic surgeon practicing in Waterbury, Connecticut. The latest annual CMS data records 12 knee replacements. That is #64 in Connecticut for knee replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2020 to 2024, 3 years. Volume has held between 11 and 13 procedures a year.
National context. Among 6,612 knee replacement surgeons tracked nationally, 12 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Waterbury has 3 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 13 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 11 |
| 2024 | 12 |
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. 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. Mariani Compares
Procedure volume compared to the Connecticut state average.
Volume Trend Analysis
Dr. Mariani's procedure volume has been consistent across 3 years of Medicare data, ranging from 11 to 13 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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. Mariani
How does Dr. Mariani's procedure volume compare to other Connecticut surgeons?
Dr. Mariani has performed 12 Medicare-verified joint replacement procedures. The Connecticut average is 49 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Mariani ranks #91 out of 94 orthopedic surgeons in Connecticut.
What types of joint replacement does Dr. Mariani perform?
Dr. Mariani's reported Medicare volume is focused on knee replacement, with 12 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Mariani in Waterbury?
Yes. There are 3 orthopedic surgeons in Waterbury 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 Connecticut surgeons.
What does the Medicare data for Dr. Mariani 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, which puts Dr. Mariani's total volume across all insurers at roughly 40 to 50 procedures against the 12 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. Mariani's procedure volume changed over time?
Dr. Mariani's procedure volume has been relatively stable over 3 years of Medicare data, ranging from 11 to 13 procedures per year between 2020 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Which hospitals is Dr. Mariani affiliated with?
According to CMS facility affiliation data, Dr. Mariani is affiliated with Uconn Health Waterbury Hospital, Saint Mary'S Hospital, Midstate Medical Center.
How does Dr. Mariani compare to other orthopedic surgeons in Waterbury?
Among the 3 orthopedic surgeons in Waterbury, Dr. Mariani ranks #3 by total Medicare procedure volume. Dr. Mariani is among the highest-volume surgeons in Waterbury.
What are the quality ratings for hospitals where Dr. Mariani practices?
Uconn Health Waterbury Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Saint Mary'S Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Midstate Medical Center (4 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 Waterbury, Connecticut
Dr. Mariani's 12 Medicare procedures are below the Waterbury average of 25. The table below compares verified procedure volumes for orthopedic surgeons practicing in Waterbury.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Eric Olson | 48 | Knee, Shoulder |
| Dr. Samuel Laurencin | 16 | 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.