Dr. William Geisert, M.D.
Contact & Location
904-634-0640
Fleming Island, FL 32003
Jacksonville, FL 32218
Ponte Vedra Beach, FL 32082
Jacksonville, FL 32256
Dr. Geisert performs more knee replacement procedures than 31% of orthopedic surgeons in Florida, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #278 of 406 ranked knee surgeons in Florida.
About Dr. Geisert
Practice. Dr. William Geisert is a board-certified orthopedic surgeon practicing in Fleming Island, Florida. The latest annual CMS data records 23 knee replacements and 21 hip replacements, 44 procedures in all. That is #278 in Florida for knee replacement. A Medicare provider since 2012.
Trend. Dr. Geisert first appears in the Medicare data in 2024. With 1 year on record, the trend is still short.
National context. Among 6,612 knee replacement surgeons tracked nationally, 23 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Fleming Island has 3 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist. Dr. Geisert also holds hospital privileges in FL and AZ, a practice that extends beyond Florida.
Verified Case Volume
Verified Medicare data is available for 1 year: 44 procedures in the most recent reporting year. A multi-year trend chart is shown once at least 3 years of data are available.
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. Geisert Compares
Procedure volume compared to the Florida state average.
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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
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.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Geisert
How does Dr. Geisert's procedure volume compare to other Florida surgeons?
Dr. Geisert has performed 44 Medicare-verified joint replacement procedures. The Florida average is 72 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Geisert ranks #287 out of 523 orthopedic surgeons in Florida.
What types of joint replacement does Dr. Geisert perform?
Dr. Geisert's Medicare data shows procedures in knee replacement (23 cases) and hip replacement (21 cases).
Are there other orthopedic surgeons near Dr. Geisert in Fleming Island?
Yes. There are 3 orthopedic surgeons in Fleming Island 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. Geisert 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. Geisert's total volume across all insurers at roughly 150 to 180 procedures against the 44 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.
Does Dr. Geisert perform more than one type of joint replacement?
Yes. Dr. Geisert's Medicare data shows procedures in knee replacement (23 cases), hip replacement (21 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Geisert affiliated with?
According to CMS facility affiliation data, Dr. Geisert is affiliated with Ascension St Vincent'S Southside, Ascension St Vincent'S Riverside, Ascension St Vincent'S Clay County, Baptist Medical Center Jacksonville, Banner Desert Medical Center. Dr. Geisert maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Geisert compare to other orthopedic surgeons in Fleming Island?
Among the 3 orthopedic surgeons in Fleming Island, Dr. Geisert ranks #1 by total Medicare procedure volume. Dr. Geisert has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Geisert practices?
Ascension St Vincent'S Southside (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Ascension St Vincent'S Riverside (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Ascension St Vincent'S Clay County (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 Fleming Island, Florida
Dr. Geisert's 44 Medicare procedures are above the Fleming Island average of 32. The table below compares verified procedure volumes for orthopedic surgeons practicing in Fleming Island.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Aaron Bates | 41 | Shoulder |
| Dr. Harrison Mahon | 12 | 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.