![Loretta M. Johnson, Ph.D., DABR, FAAPM](/medicine/radiology/images/Faculty/johnson_1.jpg)
Loretta M. Johnson, Ph.D., DABR, FAAPM
Division Director, Division of Physics and Engineering
![Robert Cole Boggs, Ph.D.](/medicine/radiology/images/Faculty/boggs.jpg)
Robert Cole Boggs, Ph.D.
Assistant Professor, Division of Physics and Engineering
![David M. Gauntt, Ph.D., DABR, FAAPM](/medicine/radiology/images/Faculty/D_Gauntt_Physics_Engineering.jpg)
David M. Gauntt, Ph.D., DABR, FAAPM
Associate Professor, Division of Physics and Engineering
![Daniel Goldberg-Zimring, Ph.D., MBA](/medicine/radiology/images/Faculty/goldberg.jpg)
Daniel Goldberg-Zimring, Ph.D., MBA
Assistant Professor, Division of Physics and Engineering
![Daniel J. Staton, Ph.D., DABR](/medicine/radiology/images/Faculty/staton.jpg)
Daniel J. Staton, Ph.D., DABR
Adjunct Instructor, Division of Physics and Engineering
![Brendon J. Villegas, Ph.D.](/medicine/radiology/images/Residents/2023-2024/villegas_2023.jpg)
Brendon J. Villegas, Ph.D.
Assistant Professor, Division of Physics and Engineering
![Jian-xiong Wang, Ph.D., CCPM-MRI](/medicine/radiology/images/Faculty/Jian-Xiong_Wang.jpg)
Jian-xiong Wang, Ph.D., CCPM-MRI
Associate Professor, Division of Physics and Engineering
![Sharon L. White, Ph.D., DABR, FAAPM](/medicine/radiology/images/Faculty/white_1.jpg)
Sharon L. White, Ph.D., DABR, FAAPM
Program Director, Imaging Medical Physics Residency Program
Associate Professor, Division of Physics and Engineering
Physicist, Division of Molecular Imaging and Therapeutics (Nuclear Medicine)
![Michael V. Yester, Ph.D., DABR, FAAPM, FACR](/medicine/radiology/images/Faculty/yester.jpg)
Michael V. Yester, Ph.D., DABR, FAAPM, FACR
Retired Professor Emeritus, Division of Physics and Engineering
![Wlad T. Sobol, Ph.D., DABR, DABMP, FAAPM](/medicine/radiology/images/Faculty/sobol.jpg)
Wlad T. Sobol, Ph.D., DABR, DABMP, FAAPM
Retired Professor Emeritus, Division of Physics and Engineering
![Xizeng Wu, Ph.D., DABR](/medicine/radiology/images/Faculty/wu_1.jpg)
Xizeng Wu, Ph.D., DABR
Retired Professor Emeritus, Division of Physics and Engineering
![Gary T. Barnes, Ph.D., DABR, FAAPM, FACR](/medicine/radiology/images/Faculty/Barnes_Gary.jpg)
Gary T. Barnes, Ph.D., DABR, FAAPM, FACR
Retired Professor Emeritus, Division of Physics and Engineering