Dr. Richard Rattay, M.D.

Orthopedic Surgery
66 procedures 3 hospitals Mason City, IA
Latest available Medicare data — updated April 2026
Growing Volume

Contact & Location

Phone: 641-494-5210
Practice phone listed in the NPI registry
250 S Crescent Dr
Mason City, IA 50401
NPI: 1295737484
Credentials: M.D.
Active Medicare provider (NPI verified)
21 years of practice experience
Licensed M.D.
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
Knee 46 vs 45 avg (6,599 surgeons)
Shoulder 20 vs 29 avg (2,213 surgeons)

Dr. Richard Rattay is a board-certified orthopedic surgeon practicing in Mason City, Iowa. A Medicare provider since 2005, Dr. Rattay has performed 46 Medicare-verified knee replacements (#40 in Iowa) and 20 shoulder replacements, for a combined total of 66 procedures.

In Iowa, Dr. Rattay performs near average in knee (46 vs 48 avg), below average in shoulder (20 vs 26 avg).

Dr. Rattay's reported Medicare volume is split between knee replacements (46 cases) and shoulder replacements (20 cases).

Mason City is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Mason City area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Rattay extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 35 to 66 in the most recent data, a 89% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,599 knee replacement surgeons tracked nationally, Dr. Rattay's 46 verified procedures is near the national average of 45.

Verified Medicare Cases

Knee Replacement
46 verified cases
#40 in Iowa
Shoulder Replacement
20 verified cases
#25 in Iowa
Estimated total: 180 – 200 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. Rattay Compares

Procedure volume compared to the Iowa state average.

Knee Average
46 Avg: 48
Shoulder Below Avg
20 Avg: 26
Dr. Rattay Iowa Average

Volume Trend Analysis

Dr. Rattay's Medicare-recorded procedure volume has trended upward over 12 years, increasing 89% from 35 procedures in 2013 to 66 in the most recent data.

Years of Data 12
2024 Volume 66
Peak Volume 82 (2023)
Trend Growing

Hospital Affiliations & Quality

H
Mitchell County Regional Health
Osage, IA
H
Regional Health Services Of Howard County
Cresco, IA
H
Mercyone North Iowa Medical Center
3/5
Mason City, IA
Similar to national avg

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. Rattay

How does Dr. Rattay's procedure volume compare to other Iowa surgeons?

Dr. Rattay has performed 66 Medicare-verified joint replacement procedures. This is in line with the Iowa average of 73 procedures per surgeon. Dr. Rattay ranks #47 out of 105 orthopedic surgeons in Iowa.

What types of joint replacement does Dr. Rattay perform?

Dr. Rattay's Medicare data shows procedures in knee replacement (46 cases) and shoulder replacement (20 cases).

Are there other orthopedic surgeons near Dr. Rattay in Mason City?

Yes. There are 6 orthopedic surgeons in Mason 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 Iowa surgeons.

What does the Medicare data for Dr. Rattay 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. Rattay's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 66 procedures shown here.

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

Yes. Dr. Rattay's Medicare-recorded volume has increased from 35 procedures in 2013 to 66 in the most recent data, a 89% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 82 procedures in 2023.

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

Yes. Dr. Rattay's Medicare data shows procedures in knee replacement (46 cases), shoulder replacement (20 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Rattay affiliated with?

According to CMS facility affiliation data, Dr. Rattay is affiliated with Mitchell County Regional Health, Regional Health Services Of Howard County, Mercyone North Iowa Medical Center.

How does Dr. Rattay compare to other orthopedic surgeons in Mason City?

Among the 6 orthopedic surgeons in Mason City, Dr. Rattay ranks #2 by total Medicare procedure volume. Dr. Rattay is among the highest-volume surgeons in Mason City.

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

Mercyone North Iowa Medical 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 Mason City, Iowa

Dr. Rattay's 66 Medicare procedures are above the Mason City average of 53. The table below compares verified procedure volumes for orthopedic surgeons practicing in Mason City.

SurgeonProceduresSpecialties
Dr. Darron Jones 106 Hip, Knee
Dr. Timothy Gibbons 52 Knee, Shoulder
Dr. Michael Scherb 33 Hip, Knee
Dr. Eric Potthoff 32 Hip, Knee
Dr. Mihail Radulescu 27 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.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Richard Rattay, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ia/dr-richard-rattay-mason-city.html

Link: https://orthoprocedures.com/surgeons/ia/dr-richard-rattay-mason-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.