Dr. Michael Kadrmas, MD
Contact & Location
Rapid City, SD 57702
Dr. Michael Kadrmas is a board-certified orthopedic surgeon practicing in Rapid City, South Dakota. A Medicare provider since 2006, Dr. Kadrmas has performed 27 Medicare-verified knee replacements (#30 in South Dakota) and 24 hip replacements, for a combined total of 51 procedures.
In South Dakota, Dr. Kadrmas performs below average in knee (27 vs 42 avg), below average in hip (24 vs 36 avg).
Dr. Kadrmas's reported Medicare volume is split between knee replacements (27 cases) and hip replacements (24 cases).
Beyond general orthopedic surgery, Dr. Kadrmas holds additional credentials in Orthopaedic Trauma, reflecting subspecialty training that may benefit patients with complex joint conditions.
Rapid City is home to 9 orthopedic surgeons in the current Medicare dataset. Patients in the Rapid City area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Kadrmas extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 12 to 51 in the most recent data, a 325% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Kadrmas's 27 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.
How Dr. Kadrmas Compares
Procedure volume compared to the South Dakota state average.
Volume Trend Analysis
Dr. Kadrmas's Medicare-recorded procedure volume has trended upward over 11 years, increasing 325% from 12 procedures in 2013 to 51 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 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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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. Kadrmas
How does Dr. Kadrmas's procedure volume compare to other South Dakota surgeons?
Dr. Kadrmas has performed 51 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. Kadrmas ranks #29 out of 52 orthopedic surgeons in South Dakota.
What types of joint replacement does Dr. Kadrmas perform?
Dr. Kadrmas's Medicare data shows procedures in knee replacement (27 cases) and hip replacement (24 cases).
Are there other orthopedic surgeons near Dr. Kadrmas in Rapid City?
Yes. There are 9 orthopedic surgeons in Rapid City 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 South Dakota surgeons.
What does the Medicare data for Dr. Kadrmas represent?
The procedure counts shown are based on the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Kadrmas's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 51 procedures shown here.
Has Dr. Kadrmas's procedure volume changed over time?
Yes. Dr. Kadrmas's Medicare-recorded volume has increased from 12 procedures in 2013 to 51 in the most recent data, a 325% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 51 procedures in 2024.
Does Dr. Kadrmas perform more than one type of joint replacement?
Yes. Dr. Kadrmas's Medicare data shows procedures in knee replacement (27 cases), hip replacement (24 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Kadrmas affiliated with?
According to CMS facility affiliation data, Dr. Kadrmas is affiliated with Black Hills Surgical Hospital Llc, Monument Health Custer Hospital.
How does Dr. Kadrmas compare to other orthopedic surgeons in Rapid City?
Among the 9 orthopedic surgeons in Rapid City, Dr. Kadrmas ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Rapid City has 147 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Kadrmas practices?
Black Hills Surgical Hospital Llc (hip/knee complication rate better than national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Rapid City, South Dakota
Dr. Kadrmas's 51 Medicare procedures are below the Rapid City average of 81. The table below compares verified procedure volumes for orthopedic surgeons practicing in Rapid City.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeffrey Marrs | 147 | Hip, Knee |
| Dr. Samuel Mortimer | 112 | Hip, Knee, Shoulder |
| Dr. Steven Giuseffi | 92 | Hip, Knee, Shoulder |
| Dr. Clark Duchene | 91 | Hip, Knee, Shoulder |
| Dr. Emmett McEleney | 45 | Hip, Knee |
| Dr. Lew Papendick | 32 | 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.