Dr. Alexander completed his doctor of philosophy degree at Arizona State University (2003) in curriculum and instruction with an emphasis in exercise and wellness. He earned his Master of Science in exercise physiology from Brigham Young University and his bachelor’s degree in health promotion.

In addition to his academic preparation, Dr. Alexander holds numerous health and fitness professional certifications; namely, Clinical Exercise Specialist® from the American College of Sports Medicine (ACSM) and Certified Personal Trainer and Corrective Exercise Specialist from the National Academy of Sports Medicine (NASM). Consequently, Dr. Alexander has served as a personal and group fitness trainer primarily working closely with the older adult population.

Kathleen DiCaprio, PhD, previously served as an assistant professor of microbiology and immunology at Touro College of Osteopathic Medicine in New York, as well as the director of content development and education at Oceania University of Medicine. In addition, she served as an instructor and curriculum consultant for Kaplan Medical.

Dr. DiCaprio has a history of teaching undergraduate, graduate, and medical courses in areas related to infectious diseases and infection control, immunology, public health, and emergency preparedness. She comes to ATSU with an impressive history as a faculty member and administrator in higher education of the medicine and the health sciences.

Dr. DiCaprio earned her BS in biochemistry from The College of Saint Rose and her PhD in pathology from Uniformed Services University of the Health Sciences. Her prior research focused on studying pathogenesis of maximum containment (Biosafety-level 4) viruses such as Ebola and Marburg in non-human primate models. Her research efforts contributed to the development of potential vaccines and therapeutics against these deadly viruses, and her work has been profiled in numerous publications and press releases.

Dr. Mathieson completed her PhD in sociology at Arizona State University, with a focus in the areas of statistics and sociology of health. Before coming to ATSU, she spent five years as a research analyst and biostatistician at Maricopa Medical Center, a 449-bed teaching hospital in Phoenix.

While at Maricopa Medical Center, Dr. Mathieson taught research and statistics courses to medical residents in various specialties, and co-authored research articles with faculty and residents in areas such as obstetrics and gynecology, emergency medicine, pediatrics, family practice, and public health. Since coming to ATSU, Dr. Mathieson has collaborated on both quantitative and qualitative research projects in various programs, and has begun her own research in the area of teaching and learning. She is also interested in research ethics and is the vice-chair of the ATSU-Arizona Institutional Review Board. Dr. Mathieson enjoys working with students, particularly in the process of mentoring them through research projects.

Dr. Matthews completed his PhD in education at Southern Illinois University with an emphasis in adult and vocational/technical education (workforce education and development). He recently completed a Doctor of Health Sciences (DHSc) degree at Nova Southeastern University.  He also holds graduate degrees in education (post-secondary administration and supervision) and museum studies. His professional medical preparation is in the field of diagnostic imaging. Dr. Matthews is certified in diagnostic radiography, cardiovascular-interventional technology, and magnetic resonance imaging by the American Registry of Radiologic Technologists. Prior to coming to ATSU, he was the program director of the radiography program at Southern Illinois University.

Dr. Matthews has an extensive teaching history at both the undergraduate and graduate levels.  In addition to teaching most courses in the ATSU Health Sciences curriculum, he has taught numerous courses on medical and educational history, his primary research interest. He enjoys qualitative-historical research and has served as a subject matter expert for several state and national organizations and museums on the topic of 19th century American medicine.

Dr. Weemer completed her Doctorate of Health Sciences degree at Indiana State University, with focus in the areas of health promotion, physical activity and wellness. She earned a Master of Science in physical education from Eastern Illinois University and also a Master of Science in Teaching health education from Northern Illinois University. She earned her undergraduate degree in dietetics.

In addition to her academic preparation, Dr. Weemer is a Master Certified Health Education Specialist (MCHES). She has an extensive history of teaching undergraduate and graduate health science courses in various modalities, along with experience revising courses and curriculums. Dr. Weemer’s research interests focus on the scholarship of teaching and learning, along with examining risk and protective factors surrounding adolescent and college student health.

Marisa Hastie, EdD, MS, ACSM-EP, PN-1, FACSM is the Dean of the College of Graduate Health Studies at AT Still University. Dr. Hastie received her doctor of education from George Fox University (2013), her master of science in exercise and sport science with an emphasis in biomechanics from the University of Oregon (2003), and her bachelor of science in exercise science from Gonzaga University (2001). She is a fellow of the American College of Sports Medicine (ACSM) and is a certified Exercise Physiologist.

Prior to joining ATSU, she was a Professor of Exercise Science and Program Chair for the Exercise Science Program at Lasell University (Newton, MA). Dr. Hastie also served as the Faculty Fellow for the Fuss Center for Research on Intergenerational Education and Aging and received the deWitt Excellence in Educational Leadership Award from Lasell University. Dr. Hastie served as Faculty Chair of the University’s governance system.

Dr. Hastie has served in several leadership roles at the regional and national level of the ACSM, which include her current roles on the Professional Education Committee at the national level and as the President-Elect for the New England chapter. Her research interests have included exploring the connection between lifelong physical activity and long-term health outcomes, the relationship between exercise training and cognition, and the effects of discrimination experiences on health-related coping behaviors.

Dr. Hastie has extensive experience in online program development, teaching, and assessment. She developed an online Master of Science in Nutrition for Human Performance program and has 18 years of experience in both synchronous and asynchronous teaching formats. She became an educator because she strongly believes in the development of the whole student as a crucial responsibility of higher education institutions.

Dr. Matthews completed his PhD in education at Southern Illinois University with an emphasis in adult and vocational/technical education (workforce education and development). He recently completed a Doctor of Health Sciences (DHSc) degree at Nova Southeastern University. He also holds graduate degrees in education (post-secondary administration and supervision) and museum studies. His professional medical preparation is in the field of diagnostic imaging. Dr. Matthews is certified in diagnostic radiography, cardiovascular-interventional technology, and magnetic resonance imaging by the American Registry of Radiologic Technologists. Prior to coming to ATSU, he was the program director of the radiography program at Southern Illinois University.

Dr. Matthews has an extensive teaching history at both the undergraduate and graduate levels. In addition to teaching most courses in the ATSU Health Sciences curriculum, he has taught numerous courses on medical and educational history, his primary research interest. He enjoys qualitative-historical research and has served as a subject matter expert for several state and national organizations and museums on the topic of 19th century American medicine.