Dr. Aaron Althaus, M.D.

Orthopedic Surgery
104 procedures 3 hospitals Kansas City, KS
Latest available Medicare data — updated April 2026
Growing Volume

Contact & Location

Phone: 605-217-2667
Practice phone listed in the NPI registry
Ms #3017, 3901 Rainbow Blvd.
Kansas City, KS 66160
NPI: 1518195619
Credentials: M.D.
Active Medicare provider (NPI verified)
17 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety, all under $50
National Comparison by Procedure
Hip 38 vs 36 avg (4,532 surgeons)
Knee 66 vs 45 avg (6,599 surgeons)

Dr. Aaron Althaus is a board-certified orthopedic surgeon practicing in Kansas City, Kansas. A Medicare provider since 2009, Dr. Althaus has performed 66 Medicare-verified knee replacements (#35 in Kansas) and 38 hip replacements, for a combined total of 104 procedures.

In Kansas, Dr. Althaus performs near average in knee (66 vs 62 avg), near average in hip (38 vs 40 avg).

Dr. Althaus's reported Medicare volume is split between knee replacements (66 cases) and hip replacements (38 cases).

Kansas City is home to 8 orthopedic surgeons in the current Medicare dataset. Patients in the Kansas City area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs. Dr. Althaus also maintains hospital privileges in IA and SD, indicating a regional practice that extends beyond Kansas.

Medicare records for Dr. Althaus extend back to 2017, covering 8 years of data. Over that period, recorded procedure volume increased from 37 to 104 in the most recent data, a 181% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,599 knee replacement surgeons tracked nationally, Dr. Althaus's 66 verified procedures is above the national average of 45.

Verified Medicare Cases

Knee Replacement
66 verified cases
#35 in Kansas
Hip Replacement
38 verified cases
#29 in Kansas
Estimated total: 280 – 320 procedures (all insurers)
Based on Medicare FFS representing 33–37% of national joint replacement volume
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. Althaus Compares

Procedure volume compared to the Kansas state average.

Hip Average
38 Avg: 40
Knee Average
66 Avg: 62
Dr. Althaus Kansas Average

Volume Trend Analysis

Dr. Althaus's Medicare-recorded procedure volume has trended upward over 8 years, increasing 181% from 37 procedures in 2017 to 104 in the most recent data.

Years of Data 8
2024 Volume 104
Peak Volume 118 (2021)
Trend Growing

Hospital Affiliations & Quality

H
Floyd Valley Healthcare
Le Mars, IA
Similar to national avg
H
Dunes Surgical Hospital
Dakota Dunes, SD
Similar to national avg
H
St Lukes Regional Medical Center
1/5
Sioux City, IA
Low case volume

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:

Knee Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:

Week 1-2 Walking with assistive device. Knee bending exercises begin immediately. Ice therapy and elevation for swelling control.
Week 3-6 Increased range of motion (target 90 degrees). Walking longer distances. Physical therapy intensifies with strengthening exercises.
Week 7-12 Most patients walk without assistive devices. Resume driving and desk work. Continue PT for strength and flexibility.
Month 4-6 Near-full recovery. Resume most recreational activities. Some swelling and stiffness may persist but continues improving.

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. Althaus

How does Dr. Althaus's procedure volume compare to other Kansas surgeons?

Dr. Althaus has performed 104 Medicare-verified joint replacement procedures. This is in line with the Kansas average of 85 procedures per surgeon. Dr. Althaus ranks #35 out of 110 orthopedic surgeons in Kansas.

What types of joint replacement does Dr. Althaus perform?

Dr. Althaus's Medicare data shows procedures in knee replacement (66 cases) and hip replacement (38 cases).

Are there other orthopedic surgeons near Dr. Althaus in Kansas City?

Yes. There are 8 orthopedic surgeons in Kansas 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 Kansas surgeons.

What does the Medicare data for Dr. Althaus 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. Althaus's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 104 procedures shown here.

Has Dr. Althaus's procedure volume changed over time?

Yes. Dr. Althaus's Medicare-recorded volume has increased from 37 procedures in 2017 to 104 in the most recent data, a 181% increase over 8 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 118 procedures in 2021.

Does Dr. Althaus perform more than one type of joint replacement?

Yes. Dr. Althaus's Medicare data shows procedures in knee replacement (66 cases), hip replacement (38 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Althaus affiliated with?

According to CMS facility affiliation data, Dr. Althaus is affiliated with Floyd Valley Healthcare, Dunes Surgical Hospital, St Lukes Regional Medical Center. Dr. Althaus maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.

How does Dr. Althaus compare to other orthopedic surgeons in Kansas City?

Among the 8 orthopedic surgeons in Kansas City, Dr. Althaus ranks #2 by total Medicare procedure volume. Dr. Althaus is among the highest-volume surgeons in Kansas City.

What are the quality ratings for hospitals where Dr. Althaus practices?

Floyd Valley Healthcare (hip/knee complication rate similar to national average); Dunes Surgical Hospital (hip/knee complication rate similar to national average); St Lukes Regional Medical Center (1 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 Kansas City, Kansas

Dr. Althaus's 104 Medicare procedures are above the Kansas City average of 57. The table below compares verified procedure volumes for orthopedic surgeons practicing in Kansas City.

SurgeonProceduresSpecialties
Dr. David Anderson 134 Hip, Knee
Dr. Katie Smeltzer 56 Hip, Knee
Dr. Matthew De Ruyter 45 Hip, Knee
Dr. Kyle Sweeney 22 Hip
Dr. John Schroeppel 18 Knee
Dr. Mitchell Birt 17 Shoulder

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.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Aaron Althaus, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ks/dr-aaron-althaus-kansas-city.html

Link: https://orthoprocedures.com/surgeons/ks/dr-aaron-althaus-kansas-city.html

Data source: CMS Medicare Part B Provider Utilization & Payment Data. Full methodology | Open Data API

Important: Rankings are based solely on Medicare procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately one-third to 40% of all joint replacement procedures nationwide. Always consult with healthcare providers to make informed decisions about your care.