Dr. Michael Wieser, M.D.
Contact & Location
419-222-6622
Lima, OH 45804
Dr. Wieser performs more knee replacement procedures than 36% of orthopedic surgeons in Ohio, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #195 of 305 ranked knee surgeons in Ohio.
About Dr. Wieser
Practice. Dr. Michael Wieser is a board-certified orthopedic surgeon practicing in Lima, Ohio. The latest annual CMS data records 23 knee replacements. That is #195 in Ohio for knee replacement. Dr. Wieser also holds credentials in Sports Medicine. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume peaked at 45 in 2013 and stands at 23 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 23 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Lima has 15 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 | 12 | 33 |
| 2014 | 11 | 32 |
| 2015 | 13 | 24 |
| 2016 | 0 | 23 |
| 2017 | 0 | 26 |
| 2018 | 16 | 18 |
| 2019 | 12 | 25 |
| 2020 | 0 | 20 |
| 2021 | 0 | 27 |
| 2022 | 12 | 24 |
| 2023 | 0 | 30 |
| 2024 | 0 | 23 |
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. Wieser Compares
Procedure volume compared to the Ohio state average.
Volume Trend Analysis
Dr. Wieser's recorded volume peaked at 45 procedures in 2013 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 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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Rehabilitation Roadmap: Your Complete Recovery GuideA structured physical therapy progression from the first post-op exercises through full strength and mobility restoration over 3 to 6 months.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Wieser
How does Dr. Wieser's procedure volume compare to other Ohio surgeons?
Dr. Wieser has performed 23 Medicare-verified joint replacement procedures. The Ohio average is 59 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Wieser ranks #269 out of 370 orthopedic surgeons in Ohio.
What types of joint replacement does Dr. Wieser perform?
Dr. Wieser's reported Medicare volume is focused on knee replacement, with 23 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Wieser in Lima?
Yes. There are 15 orthopedic surgeons in Lima 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 Ohio surgeons.
What does the Medicare data for Dr. Wieser 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. Wieser's total volume across all insurers at roughly 80 to 100 procedures against the 23 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. Wieser's procedure volume changed over time?
Dr. Wieser's Medicare-recorded volume peaked at 45 procedures in 2013 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.
Which hospitals is Dr. Wieser affiliated with?
According to CMS facility affiliation data, Dr. Wieser is affiliated with Mercy Health-St Rita'S Medical Center, Institute For Orthopaedic Surgery, Van Wert County Hospital, Lima Memorial Health System.
How does Dr. Wieser compare to other orthopedic surgeons in Lima?
Among the 15 orthopedic surgeons in Lima, Dr. Wieser ranks #15 by total Medicare procedure volume. The highest-volume surgeon in Lima has 182 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Wieser practices?
Mercy Health-St Rita'S Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Institute For Orthopaedic Surgery (hip/knee complication rate similar to national average); Van Wert County Hospital (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 Lima, Ohio
Dr. Wieser's 23 Medicare procedures are below the Lima average of 96. The table below compares verified procedure volumes for orthopedic surgeons practicing in Lima.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. James Patterson | 182 | Hip, Knee |
| Dr. Jeffery McMath | 128 | Hip, Knee |
| Dr. Chad Broering | 118 | Hip, Knee |
| Dr. James Nieman | 101 | Hip, Knee |
| Dr. Ryan Smith | 65 | Hip, Knee |
| Dr. Andrew Layne | 58 | Hip, 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.