Dr. Rosen is the Mary Betty Stevens Professor of Medicine, Pathology and Cell Biology, Director of the Division of Rheumatology, Vice Dean for Research at the Johns Hopkins School of Medicine, and Director of inHealth, the Johns Hopkins program in precision medicine and individualized health. Dr. Rosen received his medical degree from the University of Cape Town in South Africa in 1984. After completing his internship in Medicine and Surgery, he pursued postdoctoral studies in Immunology at the Rockefeller University in New York (1987-1990). Drawn by a desire for a deeper understanding of human inflammatory diseases, he returned to clinical medicine, and was an Osler resident and rheumatology fellow at Johns Hopkins Hospital (1990-1994). He subsequently joined the faculty at Johns Hopkins in 1995, and rose to the rank of Professor in 2002. He has been Director of the Division of Rheumatology since then, overseeing a substantial expansion of the Division. His research focuses on autoimmunity in the rheumatic diseases, using subgroups of patients with distinct phenotypes, trajectories and specific autoimmune responses to define molecular mechanisms. This work has defined the role of cancer in initiating the rheumatic diseases. He has also co-led the Johns Hopkins Program in Precision Medicine, overseeing the startup of numerous patient-centered Precision Medicine Centers of Excellence and the Precision Medicine Analytics Platform, that facilitate the deployment of Precision Medicine tools at scale.