Dr. Zachary Leonard, M.D.
Contact & Location
906-225-1321
Marquette, MI 49855
Dr. Leonard performs more knee replacement procedures than 92% of orthopedic surgeons in Michigan, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #16 of 202 ranked knee surgeons in Michigan.
About Dr. Leonard
Practice. Dr. Zachary Leonard is a board-certified orthopedic surgeon practicing in Marquette, Michigan. The latest annual CMS data records 69 knee replacements and 37 hip replacements, 106 procedures in all. That is #16 in Michigan for knee replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2013 to 2024, 11 years. Volume rose from 12 procedures a year to 106, up 783%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 69 procedures is above the national average of 45.
Local context. Marquette has 3 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 12 |
| 2014 | 0 | 0 |
| 2015 | 39 | 26 |
| 2016 | 52 | 32 |
| 2017 | 49 | 40 |
| 2018 | 54 | 50 |
| 2019 | 55 | 53 |
| 2020 | 36 | 66 |
| 2021 | 45 | 101 |
| 2022 | 48 | 104 |
| 2023 | 34 | 98 |
| 2024 | 37 | 69 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 25% to 33% for hip replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Leonard Compares
Procedure volume compared to the Michigan state average.
Volume Trend Analysis
Dr. Leonard's Medicare-recorded procedure volume has trended upward over 11 years, increasing 783% from 12 procedures in 2013 to 106 in the most recent data.
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.
Rehabilitation Roadmap: Your Complete Recovery GuideA structured physical therapy progression from the first post-op exercises through full strength and mobility restoration over 3 to 6 months.
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. Leonard
How does Dr. Leonard's procedure volume compare to other Michigan surgeons?
Dr. Leonard has performed 106 Medicare-verified joint replacement procedures. This is more than 2x the Michigan average of 49 procedures per surgeon. Dr. Leonard ranks #22 out of 256 orthopedic surgeons in Michigan.
What types of joint replacement does Dr. Leonard perform?
Dr. Leonard's Medicare data shows procedures in knee replacement (69 cases) and hip replacement (37 cases).
How experienced is Dr. Leonard with knee replacement surgery?
Dr. Leonard ranks #16 in Michigan for knee replacement with 69 Medicare-verified procedures. This high ranking among 256 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Leonard in Marquette?
Yes. There are 3 orthopedic surgeons in Marquette 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. Leonard represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Leonard's total volume across all insurers at roughly 360 to 450 procedures against the 106 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Leonard's procedure volume changed over time?
Yes. Dr. Leonard's Medicare-recorded volume has increased from 12 procedures in 2013 to 106 in the most recent data, a 783% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 152 procedures in 2022.
Does Dr. Leonard perform more than one type of joint replacement?
Yes. Dr. Leonard's Medicare data shows procedures in knee replacement (69 cases), hip replacement (37 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Leonard affiliated with?
According to CMS facility affiliation data, Dr. Leonard is affiliated with Up Health System - Marquette, Bell Hospital, Baraga County Memorial Hospital, Up Health System Portage, Schoolcraft Memorial Hospital.
How does Dr. Leonard compare to other orthopedic surgeons in Marquette?
Among the 3 orthopedic surgeons in Marquette, Dr. Leonard ranks #2 by total Medicare procedure volume. Dr. Leonard is among the highest-volume surgeons in Marquette.
What are the quality ratings for hospitals where Dr. Leonard practices?
Up Health System - Marquette (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Bell Hospital (hip/knee complication rate similar to national average); Baraga County Memorial Hospital (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 Marquette, Michigan
Dr. Leonard's 106 Medicare procedures are above the Marquette average of 91. The table below compares verified procedure volumes for orthopedic surgeons practicing in Marquette.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Keith Connolly | 116 | Hip, Knee |
| Dr. Jason Doppelt | 50 | 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.