Jeff Chaffin, DDS, MPH, MBA, MHA, is an assistant professor in the Master of Public Health – Dental Emphasis program at A.T. Still University. Dr. Chaffin graduated from the University of Tampa in 1988, and received a doctor of dental surgery from the University of Nebraska in 1992, a master’s in public health from the University of Michigan in 2000, a master’s in business administration from the University of Texas at San Antonio in 2006, and a master’s in healthcare administration from Baylor University in 2006. Dr. Chaffin is a diplomate of the American Board of Dental Public Health, currently serves as the immediate past president of the American Board of Dental Public Health, a Fellow of the American College of Healthcare Executives, a Fellow of the International College of Dentistry, a member of the Official Order of Military Medical Merit (O2M3), and he holds the Surgeon General’s “A” designator for excellence in Dental Public Health.

Dr. Chaffin spent 21 years on active duty in the US Army serving as the chief of dental for TRICARE. His research interests focused on dental patient satisfaction and military dental readiness. Current research work is focused on dental sealants and factors associated with dental care utilization.

Jaana Gold, DDS, PhD, MPH, CPH, is a professor at A.T. Still University College of Graduate MPH program, and an adjunct clinical associate professor at the University of Florida College of Dentistry, in the Department of Community Dentistry and Behavioral Sciences. Dr. Gold received her DDS degree from the University of Oulu, Finland in 1992; a doctorate degree in preventive dentistry in 2005; and completed advanced education program in dental public health at NYU Langone Hospitals in NYU in 2019. She brings over 25 years of experience in teaching, research, and practice in dentistry.

Dr. Gold’s research interests include caries management and prevention, oral health promotion, dental education, and dental public health. She has published original research in peer-reviewed journals and presented in several international and national conferences. She is teaching dental epidemiology, evidence-based dentistry, dental research, global health issues, and dental public health, and she serves as an advisor for MPH students and dental public health residents. Dr. Gold is a member of several national and international professional organizations; serves in several national and institutional leadership roles and continue to conduct research and promote and advocate for oral health in underserved populations.

Mary-Katherine McNatt, DrPH, MPH, MCHES, CPH, COI, is department chair and associate professor of the Master of Public Health program at A.T. Still University-College of Graduate Health Studies.

Dr. McNatt holds a doctorate of public health with an emphasis in social and behavioral sciences from the University of North Texas Health Science Center in Fort Worth, a master’s in rural public health from Texas A&M University Health Science Center School of Rural Public Health, and a bachelor’s in biology from Texas A&M University with a minor in chemistry. She is a master certified health education specialist, is certified in public health, and is a certified online instructor.

Dr. McNatt has extensive experience in epidemiology, program planning, community health, and public health preparedness; with experience working in the non-profit sector, government sector as well as in academia. She has been teaching online since 2007, and has completed and obtained her online teaching certificate from Sloan-C, COI from LERN, and is currently taking courses from Quality Matters.

Prior to becoming a full time academic, Dr. McNatt was the first full time pandemic program planner in the state of Texas at Dallas County Health and Human Services. Key activities included enhancing existing surveillance systems for seasonal influenza, educating community leaders through created lectureships and programs, and provide consulting services for agencies in developing their own business continuity and continuity of operations plans. Prior to her employment for Dallas County she worked as a community health facilitator for Catholic Charities in the Diocese of Fort Worth, focusing on community health education and outreach.

Dr. McNatt has published multiple research articles on pandemic planning and emergency preparedness, and on social media in educating diverse populations; she also presents regularly at national conferences on rural border health issues, health equity, social media and water scarcity as a public health issue, this includes presentations at American Public Health Association and National Rural Health Association. She has served as a national spokesperson for the American Heart Association as well as former chairman of the American Heart Association Cultural Health Initiatives Tarrant County Task Force. She is a member of the National Rural Health Associations Government Advisory Council, National Rural Health Association’s Health Equity Board, and serves on the Association of Schools and Programs of Public Health Education Committee, Diversity and Inclusion Committee and Best Practices in Pedagogy subcommittee. She is also a CPH question writer.

Dr. McNatt’s research interests include cultural health disparities, rural /border health issues, maternal and child health, public health preparedness, and special medical needs populations.

In her spare time she enjoys riding horses and traveling. Dr. McNattlives in Texas with family.

Gregory Loeben, PhD, MA, is an associate professor and the MPH practicum coordinator in A.T. Still University’s College of Graduate Health Studies. Previously, Dr. Loeben served as an associate professor and coordinator of bioethics at Midwestern University in Glendale, Ariz., where he created and ran a master’s degree program in medical ethics. Prior to Midwestern, he was coordinator of the Outreach Program at the University of Pennsylvania Center for Bioethics. He received a bachelor’s in both philosophy and environmental studies from the University of Vermont, and a master’s and doctorate in philosophy from the University of Arizona.

Dr. Loeben has served as a consultant or advisor on medical ethics issues to numerous healthcare institutions. He is on the board of the Arizona Bioethics Network and serves as a consultant He has an extensive experience in clinical ethics consultations, working with healthcare ethics committees, and research institutional review boards. His current research interests include a variety of issues in public health ethics, clinical ethics consultation, and online ethics education. More specifically, Dr. Loeben is interested in how professional and conscience based refusals to participate in an apparent medical activity should be understood. He is also interested in developing tools to measure the effectiveness of animal therapy programs for special needs populations.

Josefine Ortiz Wolfe, Ph.D., RDH, CHES, is an assistant professor in the Master of Public Health program at A.T. Still University within the College of Graduate Health Studies. Dr. Wolfe is a Registered Dental Hygienist, Certified Health Education Specialist, and a National Health Service Corps Scholar Alumni. She earned an undergraduate degree in dental hygiene from the University of Texas Health Science Center at San Antonio in 2005, a Master of Science in public health from Walden University in 2008, and a doctoral degree from Walden University in 2017. Previously, Dr. Wolfe served as the director of the Oral Health Program at Texas Health Institute and the project coordinator of a school-based dental sealant program at the City of San Antonio’s Health Department. Dr. Wolfe serves as Chairperson for the American Public Health Association’s Oral Health Section and is also a member of the Speakers Bureau for the American Association of Public Health Dentistry. She has over a decade of oral health leadership experience, and she is a national dental health educator and speaker. Her research interests include oral health equity, social and structural determinants of health in Latino and immigrant populations, care coordination in community health centers, and health systems research.

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.

Mary-Katherine McNatt, DrPH, MPH, MCHES, CPH, COI, is department chair and associate professor of the Master of Public Health program at A.T. Still University-College of Graduate Health Studies.

Dr. McNatt holds a doctorate of public health with an emphasis in social and behavioral sciences from the University of North Texas Health Science Center in Fort Worth, a master’s in rural public health from Texas A&M University Health Science Center School of Rural Public Health, and a bachelor’s in biology from Texas A&M University with a minor in chemistry. She is a master certified health education specialist, is certified in public health, and is a certified online instructor.

Dr. McNatt has extensive experience in epidemiology, program planning, community health, and public health preparedness; with experience working in the non-profit sector, government sector as well as in academia. She has been teaching online since 2007, and has completed and obtained her online teaching certificate from Sloan-C, COI from LERN, and is currently taking courses from Quality Matters.

Prior to becoming a full time academic, Dr. McNatt was the first full time pandemic program planner in the state of Texas at Dallas County Health and Human Services. Key activities included enhancing existing surveillance systems for seasonal influenza, educating community leaders through created lectureships and programs, and provide consulting services for agencies in developing their own business continuity and continuity of operations plans. Prior to her employment for Dallas County she worked as a community health facilitator for Catholic Charities in the Diocese of Fort Worth, focusing on community health education and outreach.

Dr. McNatt has published multiple research articles on pandemic planning and emergency preparedness, and on social media in educating diverse populations; she also presents regularly at national conferences on rural border health issues, health equity, social media and water scarcity as a public health issue, this includes presentations at American Public Health Association and National Rural Health Association. She has served as a national spokesperson for the American Heart Association as well as former chairman of the American Heart Association Cultural Health Initiatives Tarrant County Task Force. She is a member of the National Rural Health Associations Government Advisory Council, National Rural Health Association’s Health Equity Board, and serves on the Association of Schools and Programs of Public Health Education Committee, Diversity and Inclusion Committee and Best Practices in Pedagogy subcommittee. She is also a CPH question writer.

Dr. McNatt’s research interests include cultural health disparities, rural /border health issues, maternal and child health, public health preparedness, and special medical needs populations.

In her spare time she enjoys riding horses and traveling. Dr. McNattlives in Texas with family.