Dr. Armstrong's patients gave him an average rating of 4.5 out of 5 stars. In his practice, he is particularly interested in scoliosis and clubfoot. He accepts United Healthcare Platinum, United Healthcare Navigate, and Coventry, in addition to other insurance carriers. He attended medical school at the University of Ottawa Faculty of Medicine. Dr. Armstrong trained at a hospital affiliated with the University of Minnesota and a hospital affiliated with McGill University for residency. He is professionally affiliated with Penn State Milton S. Hershey Medical Center.