Knee
Dr. Patrick Zietz, MD
Dr. Patrick Zietz is a board-certified orthopedic surgeon practicing in Grand Rapids, Michigan. A Medicare provider since 2006, Dr. Zietz has performed 13 Medicare-verified knee replacements, ranking #205 in Michigan.
In Michigan, Dr. Zietz performs below average in knee (13 vs 33 avg).
Dr. Zietz's Medicare data shows a focused knee replacement practice with 13 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Beyond general orthopedic surgery, Dr. Zietz holds additional credentials in Sports Medicine, reflecting subspecialty training that may benefit patients with complex joint conditions.
Grand Rapids is home to 19 orthopedic surgeons in the current Medicare dataset. Patients in the Grand Rapids area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Zietz's Medicare data spans 7 years, beginning in 2016. Volume peaked at 19 procedures in 2017 before settling at 13 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Zietz's 13 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Zietz Compares
Procedure volume compared to the Michigan state average.
Contact & Location
Grand Rapids, MI 49546
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Zietz's recorded volume peaked at 19 procedures in 2017 and stood at 13 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Zietz
How does Dr. Zietz's procedure volume compare to other Michigan surgeons?
Dr. Zietz has performed 13 Medicare-verified joint replacement procedures. The Michigan average is 48 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Zietz ranks #252 out of 272 orthopedic surgeons in Michigan.
What types of joint replacement does Dr. Zietz perform?
Dr. Zietz's reported Medicare volume is focused on knee replacement, with 13 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Zietz in Grand Rapids?
Yes. There are 19 orthopedic surgeons in Grand Rapids 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. Zietz 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. Zietz's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 13 procedures shown here.
Has Dr. Zietz's procedure volume changed over time?
Dr. Zietz's Medicare-recorded volume peaked at 19 procedures in 2017 and was 13 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.
Which hospitals is Dr. Zietz affiliated with?
According to CMS facility affiliation data, Dr. Zietz is affiliated with Corewell Health Grand Rapids Hospitals Butterworth.
How does Dr. Zietz compare to other orthopedic surgeons in Grand Rapids?
Among the 19 orthopedic surgeons in Grand Rapids, Dr. Zietz ranks #17 by total Medicare procedure volume. The highest-volume surgeon in Grand Rapids has 101 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Zietz practices?
Corewell Health Grand Rapids Hospitals Butterworth (5 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 Grand Rapids, Michigan
Dr. Zietz's 13 Medicare procedures are below the Grand Rapids average of 56. The table below compares verified procedure volumes for orthopedic surgeons practicing in Grand Rapids.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Charles Sherry | 101 | Hip, Knee |
| Dr. Kory Johnson | 77 | Hip, Knee |
| Dr. John Mahajan | 65 | Hip, Knee |
| Dr. Thomas Malvitz | 52 | Hip, Knee |
| Dr. Benjamin Strong | 44 | Hip, Knee |
| Dr. Peter Ugolini | 43 | Shoulder |
Patient Reviews & Ratings
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