Dr. Evan Hermanson, M.D.
Contact & Location
605-331-5890
Tea, SD 57064
Dr. Hermanson performs more knee replacement procedures than 47% of orthopedic surgeons in South Dakota, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #25 of 48 ranked knee surgeons in South Dakota.
About Dr. Hermanson
Practice. Dr. Evan Hermanson is a board-certified orthopedic surgeon practicing in Sioux Falls, South Dakota. The latest annual CMS data records 31 knee replacements. That is #25 in South Dakota for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume has held between 19 and 37 procedures a year.
National context. Among 6,612 knee replacement surgeons tracked nationally, 31 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Sioux Falls has 22 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist. Dr. Hermanson also holds hospital privileges in SD and MN, a practice that extends beyond South Dakota.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement | Shoulder Replacement |
|---|---|---|
| 2013 | 14 | 20 |
| 2014 | 15 | 21 |
| 2015 | 0 | 23 |
| 2016 | 23 | 0 |
| 2017 | 15 | 12 |
| 2018 | 21 | 0 |
| 2019 | 19 | 0 |
| 2020 | 23 | 0 |
| 2021 | 23 | 0 |
| 2022 | 26 | 0 |
| 2023 | 37 | 0 |
| 2024 | 31 | 0 |
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. Hermanson Compares
Procedure volume compared to the South Dakota state average.
Volume Trend Analysis
Dr. Hermanson's procedure volume has been consistent across 12 years of Medicare data, ranging from 19 to 37 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.
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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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. Hermanson
How does Dr. Hermanson's procedure volume compare to other South Dakota surgeons?
Dr. Hermanson has performed 31 Medicare-verified joint replacement procedures. The South Dakota average is 70 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Hermanson ranks #41 out of 52 orthopedic surgeons in South Dakota.
What types of joint replacement does Dr. Hermanson perform?
Dr. Hermanson's reported Medicare volume is focused on knee replacement, with 31 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Where is Dr. Hermanson's practice located?
Dr. Hermanson's current practice address is in Tea, SD. That address is the current practice address in Dr. Hermanson's own CMS NPPES registry entry, which providers maintain themselves. The Medicare claims data used for the rankings on this page was billed from Sioux Falls, South Dakota.
What does the Medicare data for Dr. Hermanson 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. Hermanson's total volume across all insurers at roughly 110 to 130 procedures against the 31 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. Hermanson's procedure volume changed over time?
Dr. Hermanson's procedure volume has been relatively stable over 12 years of Medicare data, ranging from 19 to 37 procedures per year between 2013 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Which hospitals is Dr. Hermanson affiliated with?
According to CMS facility affiliation data, Dr. Hermanson is affiliated with Sioux Falls Specialty Hospital Llp, Avera Marshall Regional Medical Center, Avera Mckennan Hospital & University Health Center. Dr. Hermanson maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Hermanson compare to other orthopedic surgeons in Sioux Falls?
Among the 22 orthopedic surgeons in Sioux Falls, Dr. Hermanson ranks #18 by total Medicare procedure volume. The highest-volume surgeon in Sioux Falls has 340 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Hermanson practices?
Sioux Falls Specialty Hospital Llp (hip/knee complication rate similar to national average); Avera Marshall Regional Medical Center (hip/knee complication rate similar to national average); Avera Mckennan Hospital & University Health Center (3 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 Sioux Falls, South Dakota
Dr. Hermanson's 31 Medicare procedures are below the Sioux Falls average of 158. The table below compares verified procedure volumes for orthopedic surgeons practicing in Sioux Falls.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Michael Adler | 340 | Hip, Knee |
| Dr. Corey Rothrock | 209 | Hip, Knee |
| Dr. Travis Liddell | 157 | Hip, Knee, Shoulder |
| Dr. Timothy Walker | 153 | Hip, Knee |
| Dr. Carl Bechtold | 122 | Hip, Knee |
| Dr. Joshua Johnson | 97 | 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.