Dr. Gregory Christiansen, MD
Dr. Gregory Christiansen is a board-certified orthopedic surgeon practicing in Washington, Pennsylvania. Dr. Christiansen has performed 16 Medicare-verified knee replacements (#261 in Pennsylvania) and 14 shoulder replacements, for a combined total of 30 procedures.
In Pennsylvania, Dr. Christiansen performs below average in knee (16 vs 45 avg), below average in shoulder (14 vs 29 avg).
Dr. Christiansen's reported Medicare volume is split between knee replacements (16 cases) and shoulder replacements (14 cases).
Washington is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Washington area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Christiansen first appears in the Medicare dataset in 2022. With 2 years of recorded data, the longitudinal trend is still developing.
Dr. Christiansen's 16 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. Christiansen Compares
Procedure volume compared to the Pennsylvania state average.
Contact & Location
Washington, PA 15301
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Christiansen has 2 years of Medicare procedure data beginning in 2022. Additional years of data will provide a clearer picture of volume trends.
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. Christiansen
How does Dr. Christiansen's procedure volume compare to other Pennsylvania surgeons?
Dr. Christiansen has performed 30 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. Christiansen ranks #262 out of 388 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Christiansen perform?
Dr. Christiansen's Medicare data shows procedures in knee replacement (16 cases) and shoulder replacement (14 cases).
Are there other orthopedic surgeons near Dr. Christiansen in Washington?
Yes. There are 6 orthopedic surgeons in Washington 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 Pennsylvania surgeons.
What does the Medicare data for Dr. Christiansen 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. Christiansen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 30 procedures shown here.
Does Dr. Christiansen perform more than one type of joint replacement?
Yes. Dr. Christiansen's Medicare data shows procedures in knee replacement (16 cases), shoulder replacement (14 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
How does Dr. Christiansen compare to other orthopedic surgeons in Washington?
Among the 6 orthopedic surgeons in Washington, Dr. Christiansen ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Washington has 55 verified Medicare procedures.
Other Orthopedic Surgeons in Washington, Pennsylvania
Dr. Christiansen's 30 Medicare procedures are below the Washington average of 34. The table below compares verified procedure volumes for orthopedic surgeons practicing in Washington.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Gibbons | 55 | Hip, Knee |
| Dr. Armando Avolio | 38 | Hip, Knee |
| Dr. Joseph Stracci | 32 | Knee |
| Dr. Michael Scheel | 26 | Hip, Knee |
| Dr. Vincent Ripepi | 21 | Knee |
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