In Dr. Armstrong's practice, she is particularly interested in rotator cuff tear, shoulder arthroscopy, and elbow arthroscopy. She is affiliated with Penn State Milton S. Hershey Medical Center. She is in-network for several insurance carriers, including United Healthcare Platinum, United Healthcare Navigate, and Coventry. After completing medical school at The University of Western Ontario, Schulich School of Medicine & Dentistry, Dr. Armstrong performed her residency at a hospital affiliated with The University of Western Ontario.