Dr. Mark Hollmann, MD
Dr. Mark Hollmann is a board-certified orthopedic surgeon practicing in Deland, Florida. A Medicare provider since 2006, Dr. Hollmann has performed 64 Medicare-verified knee replacements (#97 in Florida) and 17 hip replacements, for a combined total of 81 procedures.
In Florida, Dr. Hollmann performs above average in knee (64 vs 49 avg), below average in hip (17 vs 39 avg).
Dr. Hollmann's practice is heavily focused on knee replacement surgery, which accounts for 79% of reported Medicare volume.
Deland is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Deland area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Hollmann's Medicare data spans 11 years, beginning in 2013. Volume peaked at 127 procedures in 2016 before settling at 81 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Hollmann's 64 verified procedures is above the national average of 45.
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. Hollmann Compares
Procedure volume compared to the Florida state average.
Contact & Location
Deland, FL 32720
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Hollmann's recorded volume peaked at 127 procedures in 2016 and stood at 81 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.
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.
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.
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. Hollmann
How does Dr. Hollmann's procedure volume compare to other Florida surgeons?
Dr. Hollmann has performed 81 Medicare-verified joint replacement procedures. This is in line with the Florida average of 72 procedures per surgeon. Dr. Hollmann ranks #156 out of 509 orthopedic surgeons in Florida.
What types of joint replacement does Dr. Hollmann perform?
Dr. Hollmann's Medicare data shows procedures in knee replacement (64 cases) and hip replacement (17 cases).
Are there other orthopedic surgeons near Dr. Hollmann in Deland?
Yes. There are 4 orthopedic surgeons in Deland 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. Hollmann 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. Hollmann's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 81 procedures shown here.
Has Dr. Hollmann's procedure volume changed over time?
Dr. Hollmann's Medicare-recorded volume peaked at 127 procedures in 2016 and was 81 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. Hollmann perform more than one type of joint replacement?
Yes. Dr. Hollmann's Medicare data shows procedures in knee replacement (64 cases), hip replacement (17 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Hollmann affiliated with?
According to CMS facility affiliation data, Dr. Hollmann is affiliated with Adventhealth Deland, Adventhealth Fish Memorial.
How does Dr. Hollmann compare to other orthopedic surgeons in Deland?
Among the 4 orthopedic surgeons in Deland, Dr. Hollmann ranks #2 by total Medicare procedure volume. Dr. Hollmann is among the highest-volume surgeons in Deland.
What are the quality ratings for hospitals where Dr. Hollmann practices?
Adventhealth Deland (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Adventhealth Fish Memorial (5 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 Deland, Florida
Dr. Hollmann's 81 Medicare procedures are above the Deland average of 67. The table below compares verified procedure volumes for orthopedic surgeons practicing in Deland.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Nathan Turnbull | 134 | Hip, Knee |
| Dr. Brandon Steen | 40 | Shoulder |
| Dr. William Browning | 14 | Knee |
Patient Reviews & Ratings
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