Dr. Robert Zehr, M.D.
Contact & Location
239-596-0100
Naples, FL 34119
Dr. Zehr performs more hip replacement procedures than 91% of orthopedic surgeons in Florida, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #26 of 315 ranked hip surgeons in Florida.
About Dr. Zehr
Practice. Dr. Robert Zehr is a board-certified orthopedic surgeon practicing in Naples, Florida. The latest annual CMS data records 101 hip replacements and 34 knee replacements, 135 procedures in all. That is #26 in Florida for hip replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume peaked at 271 in 2018 and stands at 135 now. Reporting changes and payer mix can both move that number.
National context. Among 4,542 hip replacement surgeons tracked nationally, 101 procedures is more than 2x the national average of 36. That is #155 nationally.
Local context. Naples has 18 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 | 108 | 90 |
| 2014 | 144 | 76 |
| 2015 | 130 | 72 |
| 2016 | 123 | 71 |
| 2017 | 132 | 73 |
| 2018 | 174 | 97 |
| 2019 | 141 | 84 |
| 2020 | 126 | 60 |
| 2021 | 109 | 56 |
| 2022 | 106 | 59 |
| 2023 | 96 | 65 |
| 2024 | 101 | 34 |
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 25% to 33% for hip replacement, 23% to 28% for knee 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. Zehr Compares
Procedure volume compared to the Florida state average.
Volume Trend Analysis
Dr. Zehr's recorded volume peaked at 271 procedures in 2018 and stood at 135 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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Zehr
How does Dr. Zehr's procedure volume compare to other Florida surgeons?
Dr. Zehr has performed 135 Medicare-verified joint replacement procedures. This is significantly above the Florida average of 72 procedures per surgeon. Dr. Zehr ranks #75 out of 523 orthopedic surgeons in Florida.
What types of joint replacement does Dr. Zehr perform?
Dr. Zehr's Medicare data shows procedures in hip replacement (101 cases) and knee replacement (34 cases).
Are there other orthopedic surgeons near Dr. Zehr in Naples?
Yes. There are 18 orthopedic surgeons in Naples 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 Florida surgeons.
What does the Medicare data for Dr. Zehr 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 25% to 33% for hip replacement, 23% to 28% for knee replacement, which puts Dr. Zehr's total volume across all insurers at roughly 430 to 550 procedures against the 135 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. Zehr's procedure volume changed over time?
Dr. Zehr's Medicare-recorded volume peaked at 271 procedures in 2018 and was 135 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.
Does Dr. Zehr perform more than one type of joint replacement?
Yes. Dr. Zehr's Medicare data shows procedures in hip replacement (101 cases), knee replacement (34 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Zehr affiliated with?
According to CMS facility affiliation data, Dr. Zehr is affiliated with Naples Community Hospital, Lee Memorial Hospital, Physicians Regional Medical Center - Pine Ridge.
How does Dr. Zehr compare to other orthopedic surgeons in Naples?
Among the 18 orthopedic surgeons in Naples, Dr. Zehr ranks #7 by total Medicare procedure volume. The highest-volume surgeon in Naples has 416 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Zehr practices?
Naples Community Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Lee Memorial Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Physicians Regional Medical Center - Pine Ridge (1 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 Naples, Florida
Dr. Zehr's 135 Medicare procedures are below the Naples average of 238. The table below compares verified procedure volumes for orthopedic surgeons practicing in Naples.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Henry Biggs | 416 | Hip, Knee |
| Dr. Jon Dounchis | 302 | Hip, Knee, Shoulder |
| Dr. Howard Kapp | 278 | Hip, Knee |
| Dr. James Guerra | 231 | Hip, Knee, Shoulder |
| Dr. Steven Goldberg | 159 | Shoulder |
| Dr. Leon Mead | 142 | Hip, 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.