Knee
Dr. Daniel Warner, MD
Dr. Daniel Warner is a board-certified orthopedic surgeon practicing in Hagerstown, Maryland. A Medicare provider since 2007, Dr. Warner has performed 24 Medicare-verified knee replacements, ranking #89 in Maryland.
In Maryland, Dr. Warner performs below average in knee (24 vs 50 avg).
Dr. Warner's Medicare data shows a focused knee replacement practice with 24 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. Warner holds additional credentials in Sports Medicine, reflecting subspecialty training that may benefit patients with complex joint conditions.
Hagerstown is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Hagerstown area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Warner first appears in the Medicare dataset in 2021. With 2 years of recorded data, the longitudinal trend is still developing.
Dr. Warner's 24 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. Warner Compares
Procedure volume compared to the Maryland state average.
Contact & Location
Hagerstown, MD 21742
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Warner has 2 years of Medicare procedure data beginning in 2021. Additional years of data will provide a clearer picture of volume trends.
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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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. Warner
How does Dr. Warner's procedure volume compare to other Maryland surgeons?
Dr. Warner has performed 24 Medicare-verified joint replacement procedures. The Maryland average is 72 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Warner ranks #122 out of 161 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. Warner perform?
Dr. Warner's reported Medicare volume is focused on knee replacement, with 24 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Warner in Hagerstown?
Yes. There are 7 orthopedic surgeons in Hagerstown 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 Maryland surgeons.
What does the Medicare data for Dr. Warner 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. Warner's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 24 procedures shown here.
Which hospitals is Dr. Warner affiliated with?
According to CMS facility affiliation data, Dr. Warner is affiliated with Meritus Medical Center, Frederick Health Hospital.
How does Dr. Warner compare to other orthopedic surgeons in Hagerstown?
Among the 7 orthopedic surgeons in Hagerstown, Dr. Warner ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Hagerstown has 227 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Warner practices?
Meritus Medical Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Frederick Health Hospital (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 Hagerstown, Maryland
Dr. Warner's 24 Medicare procedures are below the Hagerstown average of 67. The table below compares verified procedure volumes for orthopedic surgeons practicing in Hagerstown.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Joseph Holobinko | 227 | Hip, Knee, Shoulder |
| Dr. Alvaro Cabezas | 95 | Hip, Knee |
| Dr. Manminder Bhatia | 44 | Hip, Knee |
| Dr. Victor Anyangwe | 34 | Hip, Knee |
| Dr. Thomas Amalfitano | 31 | Knee |
| Dr. Michael Day | 15 | Shoulder |
Patient Reviews & Ratings
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