Dr. Nassif grew up in Southern California and attended the University of California, Irvine where he received his Bachelor’s degrees in biology and physics. He earned his medical degree from Harvard Medical School where he graduated with Honors. Dr. Nassif then went on to complete his residency training at Washington University in Saint Louis, Missouri. Following residency, he continued his training at the Hospital for Special Surgery in New York City, where he focused on hip and knee replacement surgery and adult joint reconstruction. Finally, Dr. Nassif went on to Memorial Sloan Kettering Cancer Center where he received additional training in advanced joint reconstructive surgery, limb salvage surgery, and the care of benign and malignant tumors of the soft tissue and bone. Dr. Nassif has been active in research and the advancement of joint replacement and reconstruction surgery. He has authored multiple book chapters and numerous research articles in peer-reviewed publications. He has also presented in many regional, national, and international orthopedic meetings focused on the advancement of hip and knee replacement surgery. Dr. Nassif was named the Division Chief of Joint Replacement for Hoag Orthopedic Institute at Hoag Orthopedic Institute in 2021. Dr. Nassif lives in Irvine with his family. In his leisure time, he enjoys spending time with his family, playing tennis, water sports, and long-distance running. He has completed 3 marathons, multiple half marathons and has recently acquired an interest in cycling.