Dr. Darren Keiser, M.D.
Dr. Darren Keiser is a board-certified orthopedic surgeon practicing in Elkhorn, Nebraska. A Medicare provider since 2006, Dr. Keiser has performed 42 Medicare-verified knee replacements (#35 in Nebraska) and 16 shoulder replacements, for a combined total of 58 procedures.
In Nebraska, Dr. Keiser performs below average in knee (42 vs 53 avg), below average in shoulder (16 vs 35 avg).
Dr. Keiser's reported Medicare volume is split between knee replacements (42 cases) and shoulder replacements (16 cases).
Elkhorn is home to 8 orthopedic surgeons in the current Medicare dataset. Patients in the Elkhorn area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs. Dr. Keiser also maintains hospital privileges in NE and IA, indicating a regional practice that extends beyond Nebraska.
Dr. Keiser's Medicare data spans 11 years, beginning in 2013. Volume peaked at 104 procedures in 2019 before settling at 58 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Keiser's 42 verified procedures is near the national average of 45.
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. Keiser Compares
Procedure volume compared to the Nebraska state average.
Contact & Location
Elkhorn, NE 68022
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Keiser's recorded volume peaked at 104 procedures in 2019 and stood at 58 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.
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. Keiser
How does Dr. Keiser's procedure volume compare to other Nebraska surgeons?
Dr. Keiser has performed 58 Medicare-verified joint replacement procedures. The Nebraska average is 79 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Keiser ranks #40 out of 73 orthopedic surgeons in Nebraska.
What types of joint replacement does Dr. Keiser perform?
Dr. Keiser's Medicare data shows procedures in knee replacement (42 cases) and shoulder replacement (16 cases).
Are there other orthopedic surgeons near Dr. Keiser in Elkhorn?
Yes. There are 8 orthopedic surgeons in Elkhorn 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 Nebraska surgeons.
What does the Medicare data for Dr. Keiser 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. Keiser's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 58 procedures shown here.
Has Dr. Keiser's procedure volume changed over time?
Dr. Keiser's Medicare-recorded volume peaked at 104 procedures in 2019 and was 58 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.
Does Dr. Keiser perform more than one type of joint replacement?
Yes. Dr. Keiser's Medicare data shows procedures in knee replacement (42 cases), shoulder replacement (16 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Keiser affiliated with?
According to CMS facility affiliation data, Dr. Keiser is affiliated with Midwest Surgical Hospital Llc, Shenandoah Medical Center, Methodist Hospital. Dr. Keiser maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Keiser compare to other orthopedic surgeons in Elkhorn?
Among the 8 orthopedic surgeons in Elkhorn, Dr. Keiser ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Elkhorn has 216 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Keiser practices?
Midwest Surgical Hospital Llc (hip/knee complication rate similar to national average); Methodist 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 Elkhorn, Nebraska
Dr. Keiser's 58 Medicare procedures are below the Elkhorn average of 83. The table below compares verified procedure volumes for orthopedic surgeons practicing in Elkhorn.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Ajoy Jana | 216 | Hip, Knee |
| Dr. Jon Uggen | 103 | Hip, Knee |
| Dr. Charles Rosipal | 95 | Shoulder |
| Dr. George Emodi | 50 | Hip, Knee |
| Dr. Mark Pitner | 33 | Knee |
| Dr. Hsueh-Yu Cheng | 27 | Knee |
Patient Reviews & Ratings
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