#33 Shoulder
#36 Knee
#51 Hip

Dr. Richard Rattay, M.D.

Orthopedic Surgery
82 procedures 3 hospitals Mason City, IA
Latest available Medicare data — updated April 2026
Rising Star
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Hip 21 vs 36 avg (4,526 surgeons)
Knee 50 vs 45 avg (6,720 surgeons)
Shoulder 11 vs 28 avg (2,092 surgeons)

Dr. Richard Rattay is a board-certified orthopedic surgeon practicing in Mason City, Iowa. A Medicare provider since 2005, Dr. Rattay has completed 50 knee replacements (#36 in Iowa), 21 hip replacements, and 11 shoulder replacements, totaling 82 Medicare-verified procedures.

In Iowa, Dr. Rattay performs near average in knee (50 vs 50 avg), below average in hip (21 vs 35 avg), below average in shoulder (11 vs 26 avg).

Dr. Rattay performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (50 cases), followed by hip replacements (21) and shoulder replacements (11).

Mason City is home to 7 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 11 years of data. Over that period, recorded procedure volume increased from 35 to 82 in the most recent data, a 134% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Rattay's 50 verified procedures is near the national average of 45.

Verified Medicare Cases

Knee Replacement
50 verified cases
#36 in Iowa
Hip Replacement
21 verified cases
#51 in Iowa
Shoulder Replacement
11 verified cases
#33 in Iowa
Estimated total: 220 – 250 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.

Hip Below Avg
21 Avg: 35
Knee Average
50 Avg: 50
Shoulder Below Avg
11 Avg: 26
Dr. Rattay Iowa Average

Contact & Location

Phone: 641-494-5210
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

Volume Trend Analysis

Dr. Rattay's Medicare-recorded procedure volume has trended upward over 11 years, increasing 134% from 35 procedures in 2013 to 82 in the most recent data.

Years of Data 11
2023 Volume 82
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
★★★☆☆
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.

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 82 Medicare-verified joint replacement procedures. This is in line with the Iowa average of 73 procedures per surgeon. Dr. Rattay ranks #37 out of 114 orthopedic surgeons in Iowa.

What types of joint replacement does Dr. Rattay perform?

Dr. Rattay performs all three major joint replacement procedures: knee replacement (50 cases), hip replacement (21 cases), shoulder replacement (11 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.

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

Yes. There are 7 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 82 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 82 in the most recent data, a 134% increase over 11 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 (50 cases), hip replacement (21 cases), shoulder replacement (11 cases). Performing all three major joint replacements places Dr. Rattay among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.

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 7 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 82 Medicare procedures are above the Mason City average of 55. The table below compares verified procedure volumes for orthopedic surgeons practicing in Mason City.

SurgeonProceduresSpecialties
Dr. Darron Jones 120 Hip, Knee
Dr. Timothy Gibbons 55 Knee, Shoulder
Dr. Michael Scherb 50 Hip, Knee
Dr. Eric Potthoff 42 Hip, Knee
Dr. Michael Crane 26 Hip, Knee
Dr. Mihail Radulescu 12 Hip

Patient Reviews & Ratings

OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:

These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.

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.