Jonathan Braun, M.D., Ph.D., is Professor of Pathology and Laboratory Medicine, and Molecular and Medical Pharmacology, at the David Geffen School of Medicine at UCLA. He is the Chair of the Department of Pathology and Laboratory Medicine, Director of Tumor Immunology at the Jonsson Comprehensive Cancer Center, and Co-Director of the UCLA Institute of Molecular Medicine (IMED).
A native of Cleveland, Ohio, Dr. Braun was raised in Los Angeles, where he studied violin in the community and modern western history in the public schools. An undergraduate at Stanford University, he received his bachelor of science in chemistry and biology in 1975. He pursued medical studies and doctoral research at Harvard Medical School and in the laboratory of Emil Unanue; he received his M.D.-PhD. in 1981. After residency in Pathology at Brigham and Women's Hospital, and a postdoctoral fellowship with David Baltimore at the Whitehead Institute, he joined the faculty at the UCLA School of Medicine in 1985.
He serves as the Chairman of the National Scientific Advisory Board of the Crohn's and Colitis Foundation, and is an officer of the Clinical Immunology Society, and the Federation of Clinical Immunology Societies (FOCIS), and serves on the editorial boards of Inflammatory Bowel Diseases and Clinical Immunology.
At UCLA, he directs the clinical programs in Pathology and Laboratory Medicine of UCLA Healthcare, and is co-director of the Instititute of Molecular Medicine (IMED) and the UCLA Clinical Translational Science Institute (CTSI).