Dr. Matthew R. Eager

Douglas Armstrong is an Orthopedics specialist and a Pediatric Orthopedics provider in Hershey, Pennsylvania. Dr. Armstrong is rated as an Advanced provider by MediFind in the treatment of Scoliosis. His top areas of expertise are Scoliosis, Clubfoot, Claw Foot, and Beukes Familial Hip Dysplasia.

Dr. Andreychik is a board-certified and fellowship-trained spine specialist. His clinical interests include adult and pediatric spine surgeries, pediatric scoliosis surgeries and cervical spine surgeries. Dr. Andreychik attended medical school at Thomas Jefferson University, where he also completed his residency. He completed his fellowship at Southern Illinois University. Dr. Andreychik is certified by the American Board of Orthopaedic Surgery in orthopaedic surgery. Dr. Andreychik is rated as an Advanced provider by MediFind in the treatment of Scoliosis. His top areas of expertise are Spinal Stenosis, Scoliosis, Invertebral Disc Disease, Laminectomy, and Microdiscectomy.

William Fred Hess, MD, is the chief of Orthopaedic Spine Surgery at Geisinger Musculoskeletal Institute. Dr. Hess received his medical degree from the University of South Florida in Tampa, Fla., where he also completed his general surgery internship and orthopaedic surgery residency. He completed the Rae R. Jacobs Spine Fellowship at the University of Kansas Medical Center and has been a member of the Department of Orthopaedic Surgery at Geisinger since 1990. He is a member of the Scoliosis Research Society, as well as a fellow of the American Academy of Orthopaedic Surgeons. He is board certified by the American Board of Orthopaedic Surgery. Dr. Hess’s clinical interests are spine trauma and pediatric and adult spine deformity, including scoliosis, kyphosis, tumors and post-traumatic deformities. These interests have led him to provide care in many third-world settings, mainly through his involvement with the Foundation for Orthopaedics and Complex Spine. He has performed reconstructive spine surgery in Ecuador, Ghana, Barbados and Jamaica since 1994. “I am proud to provide surgical spine care to patients at Geisinger, but also around the world. To those who have been given much, much is to be expected. We are all called to return the blessings we have received to others less fortunate.”. Dr. Hess is rated as an Advanced provider by MediFind in the treatment of Scoliosis. His top areas of expertise are Scoliosis, Kyphosis, Cervical Spondylosis, Osteotomy, and Microdiscectomy.