Geoff Johnson, M.D., Ph.D. | Source | Chief Scientific Officer at Nucleus RadioPharma

Geoffrey B Johnson, M.D., Ph.D. is Chief Scientific Officer at Nucleus RadioPharma and the chair of Division of Nuclear Medicine in the Department of Radiology at the Mayo Clinic in Rochester, serving since 2016. During his tenure, the Nuclear Medicine practice has undergone transformative growth, ushering in new diagnostic and therapeutic technologies, and reimagining the multidisciplinary radiopharmaceutical theranostics practice. Dr. Johnson also serves the Mayo Clinic Comprehensive Cancer Center (MCCCC) as the associate medical director for radiology and radiopharmaceutical trials, and has previously served on the MCCCC solid tumor Study Review Committee (SRC). He serves as the medical director of the Molecular Imaging Resource core lab and as the director of the Molecular Imaging Research Program. Dr. Johnson has previously served as chair of PET/MR R&D, as medical director of the Nuclear Medicine Technologist Program and as director of the Nuclear Radiology Fellowship.

Dr. Johnson is board certified by the American Board of Nuclear Medicine (ABNM) and the American Board of Radiology (ABR) and is active in clinical practice in Nuclear Medicine and Thoracic Radiology. He has a joint research appointment in the Department of Immunology. Dr. Johnson earned his B.S. in chemical engineering from the Massachusetts Institute of Technology, receiving Tau Beta Phi academic honors. He completed his M.D./Ph.D. in the Mayo Medical-Scientist Training Program, with graduate training in Immunology. He went on to complete an internship in internal medicine, a residency in diagnostic radiology and a fellowship in nuclear radiology in Mayo School of Graduate Medical Education.

Dr. Johnson’s research interests include developing radiopharmaceuticals for imaging (PET and SPECT) and therapy of cancer and inflammatory diseases. His research funding includes the NIH and industry, and he is actively serving as the principal investigator on imaging and theranostic trials.