Gregory Billy

Dr. Gregory Billy is an Associate Professor with dual appointments in the Departments of Orthopaedics and Rehabilitation and Physical Medicine and Rehabilitation at Penn State University. He additionally serves as an Instructor in Health Policy and Administration and as Team Physician for Penn State Athletics. His academic background includes an MD from Penn State College of Medicine (1993), Internal Medicine internship at Reading Hospital and Medical Center (1994), and Physical Medicine & Rehabilitation residency at Sinai Hospital of Baltimore (1997).

His research program focuses on pain management interventions and musculoskeletal physiology, including:

• Fluoroscopic-guided spinal injections (caudal, SI joint, lumbar epidural)
• Lumbar core muscle function in chronic pain
• Mind-body interventions (Taiji/Qigong) for fibromyalgia
• Collagen hydrolysate for athletic knee pain
• Echocardiography screening in NCAA athletes

Funded by NIH and Penn State CTSI, this work contributes to UN Sustainable Development Goals.

His publication portfolio reveals consistent focus on sports medicine interventions, spinal biomechanics, and healthcare education. Recent works demonstrate methodological diversity including systematic reviews (2022), biomechanical studies (2019), and medical textbooks (2019-2020) addressing both clinical specialists and healthcare consumers.

Teaching activities include instruction in spinal pathology, treatment algorithms, and medical system navigation for students, residents, and fellows. Clinical expertise covers interventional spine procedures, electrodiagnostic medicine, and sports-related injuries.