
Ryan Anderson, PA-C
Specialty: Orthopaedic
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Education
Master of Science in Physician Assistant Studies
East Carolina UniversityBachelor of Science in Exercise Science, Minor in Nutrition and Psychology
Appalachian State University
Mount Airy, NC

Jason Ferris, PA-C
Specialty: Orthopaedic
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Education
Undergraduate – Physician Assistant
D’Youville College
Buffalo, NY -
Board Certification
National Commission on Certification of Physician Assistants
Northern Orthopaedics
South Street Medical Park314 S. South Street, Suite 100
Mount Airy, NC 27030

William E. Refvem, MD
Specialty: Orthopaedic
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Education
Medical Degree
Georgetown University School of MedicineBachelor of Science in Biochemistry
University of California at Davis -
Internship
USAF Medical Center, Keesler Air Force Base, Mississippi
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Residency
Orthopaedic Surgery Residency
Wilford Hall USAF Medical Center Lackland AFP, TexasGeneral Surgery Residency
USAF Medical Center, Keesler, Air Force Base, Mississippi -
Board Certification
The American Board of Orthopaedic Surgery
Northern Orthopedics
South Street Medical Park314 S. South Street, Suite 100
Mount Airy, NC 27030

Robert Williamson, MD
Specialty: Orthopaedic
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Education
Bowman Gray School of Medicine
Winston-Salem, NC -
Internship
Fitzsimons Army Medical Center
Aurora, CO -
Residency
Madigan Army Medical Center
Tacoma, WA -
Board Certification
Orthopedic Surgeon
Northern Orthopaedics
South Street Medical Park314 S. South Street, Suite 100
Mount Airy, NC 27030