Dr. Michael Sobieraj, M.D., Ph.D.
Contact & Location
860-679-6600
Farmington, CT 06030
New York, NY 10016
Wilkes-Barre, PA 18702
Dr. Sobieraj performs more knee replacement procedures than 19% of orthopedic surgeons in Connecticut, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #54 of 67 ranked knee surgeons in Connecticut.
About Dr. Sobieraj
Practice. Dr. Michael Sobieraj is a board-certified orthopedic surgeon practicing in Farmington, Connecticut. The latest annual CMS data records 14 knee replacements. That is #54 in Connecticut for knee replacement. A Medicare provider since 2010.
Trend. Medicare records run from 2019 to 2024, 5 years. Volume peaked at 42 in 2022 and stands at 14 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 14 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Farmington 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 | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 12 |
| 2020 | 13 | 11 |
| 2021 | 0 | 0 |
| 2022 | 22 | 20 |
| 2023 | 12 | 11 |
| 2024 | 0 | 14 |
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. Sobieraj Compares
Procedure volume compared to the Connecticut state average.
Volume Trend Analysis
Dr. Sobieraj's recorded volume peaked at 42 procedures in 2022 and stood at 14 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.
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. Sobieraj
How does Dr. Sobieraj's procedure volume compare to other Connecticut surgeons?
Dr. Sobieraj has performed 14 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. Sobieraj ranks #79 out of 94 orthopedic surgeons in Connecticut.
What types of joint replacement does Dr. Sobieraj perform?
Dr. Sobieraj's reported Medicare volume is focused on knee replacement, with 14 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Sobieraj in Farmington?
Yes. There are 3 orthopedic surgeons in Farmington 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. Sobieraj 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. Sobieraj's total volume across all insurers at roughly 50 to 60 procedures against the 14 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. Sobieraj's procedure volume changed over time?
Dr. Sobieraj's Medicare-recorded volume peaked at 42 procedures in 2022 and was 14 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.
Which hospitals is Dr. Sobieraj affiliated with?
According to CMS facility affiliation data, Dr. Sobieraj is affiliated with John Dempsey Hospital Of The University Of Connect.
How does Dr. Sobieraj compare to other orthopedic surgeons in Farmington?
Among the 3 orthopedic surgeons in Farmington, Dr. Sobieraj ranks #2 by total Medicare procedure volume. Dr. Sobieraj is among the highest-volume surgeons in Farmington.
What are the quality ratings for hospitals where Dr. Sobieraj practices?
John Dempsey Hospital Of The University Of Connect (3 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 Farmington, Connecticut
Dr. Sobieraj's 14 Medicare procedures are below the Farmington average of 45. The table below compares verified procedure volumes for orthopedic surgeons practicing in Farmington.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Daniel Witmer | 107 | Hip, Knee |
| Dr. Olga Solovyova | 14 | 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.