Dr. Michael Krnacik, M.D., Ph.D.
Contact & Location
541-677-2141
Roseburg, OR 97470
Dr. Krnacik performs more knee replacement procedures than 31% of orthopedic surgeons in Oregon, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #55 of 80 ranked knee surgeons in Oregon.
About Dr. Krnacik
Practice. Dr. Michael Krnacik is a board-certified orthopedic surgeon practicing in Roseburg, Oregon. The latest annual CMS data records 24 knee replacements and 14 hip replacements, 38 procedures in all. That is #55 in Oregon for knee replacement. A Medicare provider since 2005.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume has held between 35 and 53 procedures a year.
National context. Among 6,612 knee replacement surgeons tracked nationally, 24 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Roseburg 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 | 11 | 33 |
| 2014 | 11 | 27 |
| 2015 | 12 | 23 |
| 2016 | 16 | 35 |
| 2017 | 12 | 38 |
| 2018 | 0 | 47 |
| 2019 | 20 | 33 |
| 2020 | 14 | 25 |
| 2021 | 17 | 31 |
| 2022 | 15 | 28 |
| 2023 | 18 | 30 |
| 2024 | 14 | 24 |
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. Krnacik Compares
Procedure volume compared to the Oregon state average.
Volume Trend Analysis
Dr. Krnacik's procedure volume has been consistent across 12 years of Medicare data, ranging from 35 to 53 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. Krnacik
How does Dr. Krnacik's procedure volume compare to other Oregon surgeons?
Dr. Krnacik has performed 38 Medicare-verified joint replacement procedures. The Oregon average is 63 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Krnacik ranks #62 out of 101 orthopedic surgeons in Oregon.
What types of joint replacement does Dr. Krnacik perform?
Dr. Krnacik's Medicare data shows procedures in knee replacement (24 cases) and hip replacement (14 cases).
Are there other orthopedic surgeons near Dr. Krnacik in Roseburg?
Yes. There are 3 orthopedic surgeons in Roseburg 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 Oregon surgeons.
What does the Medicare data for Dr. Krnacik 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. Krnacik's total volume across all insurers at roughly 130 to 160 procedures against the 38 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. Krnacik's procedure volume changed over time?
Dr. Krnacik's procedure volume has been relatively stable over 12 years of Medicare data, ranging from 35 to 53 procedures per year between 2013 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Does Dr. Krnacik perform more than one type of joint replacement?
Yes. Dr. Krnacik's Medicare data shows procedures in knee replacement (24 cases), hip replacement (14 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Krnacik affiliated with?
According to CMS facility affiliation data, Dr. Krnacik is affiliated with Mercy Medical Center.
How does Dr. Krnacik compare to other orthopedic surgeons in Roseburg?
Among the 3 orthopedic surgeons in Roseburg, Dr. Krnacik ranks #2 by total Medicare procedure volume. Dr. Krnacik is among the highest-volume surgeons in Roseburg.
What are the quality ratings for hospitals where Dr. Krnacik practices?
Mercy Medical Center (4 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 Roseburg, Oregon
Dr. Krnacik's 38 Medicare procedures are below the Roseburg average of 51. The table below compares verified procedure volumes for orthopedic surgeons practicing in Roseburg.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Cary Sanders | 79 | Hip, Knee |
| Dr. Susan Williams | 36 | 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.