Knee
Dr. Derek Johnson, D.O.
Dr. Derek Johnson is a board-certified orthopedic surgeon practicing in New Cumberland, Pennsylvania. Dr. Johnson has performed 17 Medicare-verified knee replacements, ranking #252 in Pennsylvania.
In Pennsylvania, Dr. Johnson performs below average in knee (17 vs 45 avg).
Dr. Johnson's Medicare data shows a focused knee replacement practice with 17 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.
Dr. Johnson is the only orthopedic surgeon in New Cumberland represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.
Dr. Johnson's Medicare data spans 9 years, beginning in 2015. Volume peaked at 31 procedures in 2016 before settling at 17 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Johnson's 17 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. Johnson Compares
Procedure volume compared to the Pennsylvania state average.
Contact & Location
New Cumberland, PA 17070
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Johnson's recorded volume peaked at 31 procedures in 2016 and stood at 17 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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
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 Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. Johnson
How does Dr. Johnson's procedure volume compare to other Pennsylvania surgeons?
Dr. Johnson has performed 17 Medicare-verified joint replacement procedures. The Pennsylvania average is 63 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Johnson ranks #321 out of 388 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Johnson perform?
Dr. Johnson's reported Medicare volume is focused on knee replacement, with 17 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Where is Dr. Johnson's practice located?
Dr. Johnson practices in New Cumberland, Pennsylvania. The office is located at 729 Carol St, New Cumberland, PA 17070. Patients in the surrounding area can consult Dr. Johnson for joint replacement evaluation.
What does the Medicare data for Dr. Johnson 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. Johnson's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 17 procedures shown here.
Has Dr. Johnson's procedure volume changed over time?
Dr. Johnson's Medicare-recorded volume peaked at 31 procedures in 2016 and was 17 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.
Which hospitals is Dr. Johnson affiliated with?
According to CMS facility affiliation data, Dr. Johnson is affiliated with Wilcox Memorial Hospital, Kauai Veterans Memorial Hospital. Dr. Johnson maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
What are the quality ratings for hospitals where Dr. Johnson practices?
Wilcox Memorial Hospital (2 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.
Patient Reviews & Ratings
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