Dr. Hallock is a graduate of The University of Virginia and The University of Maryland Medical School. He completed his residency in orthopedic surgery at Penn State Milton S. Hershey Medical Center and a fellowship in orthopedic trauma in Switzerland before joining OIP in 1983.Dr. Hallock is board certified by the American Board of Orthopedic Surgery. He is a member of the American Academy of Orthopedic Surgery, Pennsylvania Orthopedic Society, American Association of Hip and Knee Surgeons and Arthroscopic Association of North America. He currently serves as clinical assistant professor of orthopedic surgery in the Department of Orthopedics at The Pennsylvania State University. He continues to explore state-of-the-art orthopedic techniques and has been involved in the research and development of a new knee implant.