#20 Knee
#95 Hip

Dr. Robert Morren, M.D.

Orthopedic Surgery
85 procedures 2 hospitals Kalamazoo, MI
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 19 vs 36 avg (4,526 surgeons)
Knee 66 vs 45 avg (6,720 surgeons)

Dr. Robert Morren is a board-certified orthopedic surgeon practicing in Kalamazoo, Michigan. A Medicare provider since 2006, Dr. Morren has performed 66 Medicare-verified knee replacements (#20 in Michigan) and 19 hip replacements, for a combined total of 85 procedures.

In Michigan, Dr. Morren performs well above average in knee (66 vs 33 avg), below average in hip (19 vs 29 avg).

Dr. Morren's practice is heavily focused on knee replacement surgery, which accounts for 78% of reported Medicare volume.

Kalamazoo is home to 11 orthopedic surgeons in the current Medicare dataset. Patients in the Kalamazoo area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Morren extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 25 to 85 in the most recent data, a 240% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Morren's 66 verified procedures is above the national average of 45.

Verified Medicare Cases

Knee Replacement
66 verified cases
#20 in Michigan
Hip Replacement
19 verified cases
#95 in Michigan
Estimated total: 230 – 260 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. Morren Compares

Procedure volume compared to the Michigan state average.

Hip Below Avg
19 Avg: 29
Knee Very High
66 Avg: 33
Dr. Morren Michigan Average

Contact & Location

Phone: 269-343-8170
315 Turwill Ln
Kalamazoo, MI 49006
NPI: 1790754562
Credentials: M.D.
Active Medicare provider (NPI verified)
20 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. Morren's Medicare-recorded procedure volume has trended upward over 11 years, increasing 240% from 25 procedures in 2013 to 85 in the most recent data.

Years of Data 11
2023 Volume 85
Peak Volume 85 (2023)
Trend Growing

Hospital Affiliations & Quality

H
St. Catherine Hospital - Garden City
★★☆☆☆
Garden City, KS
Low case volume
H
St Catherine Hospital - Dodge City
★★☆☆☆
Dodge City, KS
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.

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. Morren

How does Dr. Morren's procedure volume compare to other Michigan surgeons?

Dr. Morren has performed 85 Medicare-verified joint replacement procedures. This is significantly above the Michigan average of 48 procedures per surgeon. Dr. Morren ranks #38 out of 272 orthopedic surgeons in Michigan.

What types of joint replacement does Dr. Morren perform?

Dr. Morren's Medicare data shows procedures in knee replacement (66 cases) and hip replacement (19 cases).

How experienced is Dr. Morren with knee replacement surgery?

Dr. Morren ranks #20 in Michigan for knee replacement with 66 Medicare-verified procedures. This high ranking among 272 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Morren in Kalamazoo?

Yes. There are 11 orthopedic surgeons in Kalamazoo 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 Michigan surgeons.

What does the Medicare data for Dr. Morren 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. Morren's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 85 procedures shown here.

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

Yes. Dr. Morren's Medicare-recorded volume has increased from 25 procedures in 2013 to 85 in the most recent data, a 240% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 85 procedures in 2023.

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

Yes. Dr. Morren's Medicare data shows procedures in knee replacement (66 cases), hip replacement (19 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Morren affiliated with?

According to CMS facility affiliation data, Dr. Morren is affiliated with St. Catherine Hospital - Garden City, St Catherine Hospital - Dodge City. Dr. Morren maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.

How does Dr. Morren compare to other orthopedic surgeons in Kalamazoo?

Among the 11 orthopedic surgeons in Kalamazoo, Dr. Morren ranks #2 by total Medicare procedure volume. Dr. Morren is among the highest-volume surgeons in Kalamazoo.

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

St. Catherine Hospital - Garden City (2 out of 5 CMS stars, insufficient case volume for complication rate comparison); St Catherine Hospital - Dodge City (2 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 Kalamazoo, Michigan

Dr. Morren's 85 Medicare procedures are above the Kalamazoo average of 65. The table below compares verified procedure volumes for orthopedic surgeons practicing in Kalamazoo.

SurgeonProceduresSpecialties
Dr. Bernard Roehr 96 Hip, Knee
Dr. David Christ 64 Hip
Dr. Todd Ream 64 Hip, Knee
Dr. Mark Sytsma 53 Shoulder
Dr. Christopher Betzle 48 Hip, Knee
Dr. Thomas Ryan 42 Hip, Knee

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. Robert Morren, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/mi/dr-robert-morren-kalamazoo.html

Link: https://orthoprocedures.com/surgeons/mi/dr-robert-morren-kalamazoo.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.