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 Osteotomy. His top areas of expertise are Scoliosis, Kyphosis, Cervical Spondylosis, Osteotomy, and Microdiscectomy.

Kai Wang is a Radiologist in Danville, Pennsylvania. Dr. Wang is rated as an Advanced provider by MediFind in Osteotomy. His top areas of expertise are Liver Cancer, PEPCK 1 Deficiency, Liver Failure, Endoscopy, and Posterior Fossa Decompression.

Daniel Scott Horwitz, MD, is an orthopaedic surgeon who specializes in orthopaedic trauma. Dr. Horwitz is the chief of Trauma for the Geisinger Musculoskeletal Institute. Dr. Horwitz received his medical degree from Washington University, St. Louis. He completed his internship at St. Luke’s-Roosevelt Hospital Center and his residency at Columbia University Medical Center. In addition, he completed a fellowship in trauma at the University of Utah Hospital and Clinics. He is board certified by the American Board of Orthopaedic Surgery. Dr. Horwitz specializes in unstable pelvic and acetabular fractures, complex articular injuries and nonunions/osteomyelitis. He leads one of the largest orthopaedic trauma teams in the country, providing care at three Level II trauma centers and at one Level I center. Dr. Horwitz has published extensively on aspects of orthopaedic trauma, ranging from fracture fixation and early evaluation of geriatric patients to health system issues, including efficiency and medical legal questions. He currently supervises two international trauma research fellows, actively teaches orthopaedic residents and lectures nationally and internationally on all aspects of orthopaedic trauma. Outside of his professional life, Dr. Horwitz enjoys visiting Scotland, and his favorite food is sushi. He spends much of his time with 3 dogs, 5 cats and 70 chickens. Dr. Horwitz is rated as an Experienced provider by MediFind in Osteotomy. His top areas of expertise are Radial Nerve Dysfunction, Mononeuritis Multiplex, Infectious Arthritis, Hip Replacement, and Osteotomy.

L. Christopher Grandizio, DO, is an orthopaedic surgeon who specializes in hand, wrist, shoulder and elbow surgery. Dr. Grandizio is a Professor of Orthopaedic Surgery at Geisinger Commonwealth School of Medicine and serves as the of the Chief of Shoulder & Elbow Division for the Geisinger Musculoskeletal Institute. Dr. Grandizio is an expert in the treatment of peripheral nerve compression (including carpal tunnel syndrome and cubital tunnel syndrome), upper-extremity trauma and fractures, sports injuries, and shoulder and elbow replacements. In addition, he specializes in complex reconstructive procedures in the upper-limb, including tendon transfers for shoulder, elbow and hand conditions.|After completing his Orthopaedic Surgery Residency at Geisinger, he went to on to complete a one-year fellowship in upper-extremity surgery at the Cleveland Clinic. Upon returning to Geisinger, he founded the Geisinger Upper-Extremity Research Fellowship, where he has mentored numerous international and US fellows. In 2021, he was selected to participate in the Young Leaders Program for the American Society for Surgery of the Hand (ASSH).|Dr. Grandizio maintains a strong interest in both research and education. He has published over 100 peer-reviewed research articles. As an expert in the management of complex elbow instability, Dr. Grandizio has been invited to give numerous national and international presentations on topics ranging from upper-extremity trauma to technology in healthcare. He serves as a peer-reviewer for multiple orthopaedic journals and is an Associate Editor for the Journal of Hand Surgery. As part of his commitment to education, he is heavily engaged in professional societies and is involved in multiple committees and leadership positions within the ASSH. In addition, Dr. Grandizio is one of the few upper-extremity surgeons who is a member of both the ASSH and ASES.|A former member of Bucknell University’s NCAA Division I baseball team, Dr. Grandizio has a long history in athletics and enjoys helping his patients return to doing what they love. He specializes in elbow ulnar collateral ligament repair / reconstruction (Tommy John Surgery) and has a passion for working with throwing athletes.|In his spare time, he enjoys spending time with his family, coaching baseball and reading. Dr. Grandizio is rated as an Experienced provider by MediFind in Osteotomy. His top areas of expertise are Carpal Tunnel Syndrome, Mononeuritis Multiplex, Trigger Thumb, Osteotomy, and Endoscopy.