Faculty

Dosimetrist Zeke Ramirez and Instructor Marissa Johnson discuss linear accelerator functionality with a radiation therapy student.
Dosimetrist Zeke Ramirez and Instructor Marissa Johnson discuss linear accelerator functionality with a radiation therapy student.

Faculty members in the Radiation Therapy Program are dedicated to bringing students a superb educational experience. You’ll learn with nationally recognized professionals who are directly involved in patient care in UT Southwestern hospitals and clinics.

Marissa Johnson, MSRS, RT(T)
Assistant Professor and Program Director
Education: BSRT, Radiation Therapy, University of Oklahoma, 2002; MS, Radiologic Sciences, Midwestern State University, 2011
Affiliations: ARRT, ASRT, NTSRT, AEIRS

Corry Defrates, BSRS, RT(T)
Instructor and Clinical Coordinator
Education: BSRS, Radiologic Science, Southwestern Illinois University 
Affiliations: ARRTASRTNTSRTAEIRS

Strahinja Stojadinovic, PhD
Assistant Professor
Graduate School: PhD, Kent State University, 2004
Interests: Development of tools for evaluating animal cancer models

Martha Schecter, JD
Adjunct Instructor
Graduate School: JD, University of Louisville School of Law, 1970; LLM, Columbia University School of Law, 1974
Interests: Health care law