Dr. Thomas Obermeyer, M.D.
Contact & Location
847-285-4200
Schaumburg, IL 60195
Dr. Obermeyer performs more shoulder replacement procedures than 75% of orthopedic surgeons in Illinois, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #20 of 80 ranked shoulder surgeons in Illinois.
About Dr. Obermeyer
Practice. Dr. Thomas Obermeyer is a board-certified orthopedic surgeon practicing in Schaumburg, Illinois. The latest annual CMS data records 33 shoulder replacements and 20 knee replacements, 53 procedures in all. That is #20 in Illinois for shoulder replacement. A Medicare provider since 2008.
Trend. Medicare records run from 2014 to 2024, 11 years. Volume rose from 12 procedures a year to 53, up 342%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 33 procedures is near the national average of 29.
Local context. Schaumburg has 6 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 | Shoulder Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 12 |
| 2015 | 0 | 12 |
| 2016 | 0 | 29 |
| 2017 | 0 | 38 |
| 2018 | 0 | 40 |
| 2019 | 0 | 30 |
| 2020 | 0 | 24 |
| 2021 | 0 | 31 |
| 2022 | 14 | 29 |
| 2023 | 16 | 34 |
| 2024 | 20 | 33 |
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 29% to 37% for shoulder replacement, 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. Obermeyer Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Obermeyer's Medicare-recorded procedure volume has trended upward over 11 years, increasing 342% from 12 procedures in 2014 to 53 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 Shoulder Replacement
If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:
A 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.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Obermeyer
How does Dr. Obermeyer's procedure volume compare to other Illinois surgeons?
Dr. Obermeyer has performed 53 Medicare-verified joint replacement procedures. The Illinois average is 69 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Obermeyer ranks #147 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Obermeyer perform?
Dr. Obermeyer's Medicare data shows procedures in shoulder replacement (33 cases) and knee replacement (20 cases).
How experienced is Dr. Obermeyer with shoulder replacement surgery?
Dr. Obermeyer ranks #20 in Illinois for shoulder replacement with 33 Medicare-verified procedures. This high ranking among 316 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Obermeyer in Schaumburg?
Yes. There are 6 orthopedic surgeons in Schaumburg 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 Illinois surgeons.
What does the Medicare data for Dr. Obermeyer 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 29% to 37% for shoulder replacement, 23% to 28% for knee replacement, which puts Dr. Obermeyer's total volume across all insurers at roughly 160 to 200 procedures against the 53 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. Obermeyer's procedure volume changed over time?
Yes. Dr. Obermeyer's Medicare-recorded volume has increased from 12 procedures in 2014 to 53 in the most recent data, a 342% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 53 procedures in 2024.
Does Dr. Obermeyer perform more than one type of joint replacement?
Yes. Dr. Obermeyer's Medicare data shows procedures in shoulder replacement (33 cases), knee replacement (20 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Obermeyer affiliated with?
According to CMS facility affiliation data, Dr. Obermeyer is affiliated with St Alexius Medical Center, Northwest Community Hospital, Alexian Brothers Medical Center.
How does Dr. Obermeyer compare to other orthopedic surgeons in Schaumburg?
Among the 6 orthopedic surgeons in Schaumburg, Dr. Obermeyer ranks #3 by total Medicare procedure volume. Dr. Obermeyer is among the highest-volume surgeons in Schaumburg.
What are the quality ratings for hospitals where Dr. Obermeyer practices?
St Alexius Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwest Community Hospital (4 out of 5 CMS stars, hip/knee complication rate better than national average); Alexian Brothers 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 Schaumburg, Illinois
Dr. Obermeyer's 53 Medicare procedures are below the Schaumburg average of 68. The table below compares verified procedure volumes for orthopedic surgeons practicing in Schaumburg.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Paul Nourbash | 164 | Hip, Knee |
| Dr. Hasham Alvi | 115 | Hip, Knee |
| Dr. Rohan Gopinath | 28 | Hip, Knee |
| Dr. Jason Rotstein | 28 | Knee |
| Dr. Sean Jereb | 22 | 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.