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Master of Applied Science (MAS) in Population Health Management


The Johns Hopkins Bloomberg School of Public Health is comprised of over 650 full-time faculty including professors, scientists, lecturers, instructors and researchers. These renowned experts in the field are shaping public health through teaching, research, and application.

The Master of Applied Science in Population Health Management is an interdisciplinary fully online, part-time degree. Faculty contribute to the program via course development, teaching, and advising students. Below are a few of the experts students will learn from.



Mark J. Bittle, DrPH, MBA, FACHE


Mark is the Program Director for the MAS in Population Health Management and the Certificate in Population Health Management. He is an experienced health care executive and Board Certified in Healthcare Management as a Fellow in the American College of Healthcare Executives. His healthcare management experience includes ambulatory services and physician practice development, physician integration, care delivery model innovation and service line management. He also has extensive experience leading ambulatory quality and patient safety improvement initiatives and developing managed care infrastructure and care management under global capitation. Mark earned his Bachelor of Science in Emergency Health Services Administration from the University of Maryland, his MBA from the University of Baltimore, and his Doctorate in Public Health (DrPH) from the Department of Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health. Mark teaches course about the US Health Care System, Health Care Financing, Leadership and Management, and Healthcare Strategy in both face-2-face and on-line formats. His areas of research interest include organizational and management factors that influence change, physician alignment and engagement, and quality and patient safety within organized delivery systems. Read Bio.

David Baker, DrPH, MBA


David Baker, DrPH, MBA, is Director of Ambulatory Quality at LifeBridge Health and has experience developing and leading major health care delivery improvement initiatives, implementing population health management efforts, and achieving results for high-risk groups. He leads a department that works with a diverse network of primary care practices to evaluate and improve their processes impacting care delivery and patient outcomes. At LifeBridge, he developed a community partnership that secured state funding for a program to reduce frequent users of the emergency department and address the underlying social, behavioral, and medical issues contributing to unmanaged chronic illness and repeat ED utilization. Before joining LifeBridge, Dr. Baker was an Assistant Professor at The Dartmouth Institute for Health Policy and Clinical Practice and a Senior Curriculum Specialist for Dartmouth College’s Master in Health Care Delivery Science program. Previously, Dr. Baker was Director of Quality Improvement for The Johns Hopkins Hospital and oversaw operations at Johns Hopkins Medicine’s Center for Innovation in Quality Patient Care. Dr. Baker’s academic and professional interests include population health management, primary care, and the analysis and improvement of complex systems problems in health care. He is an Innovation Advisor with the CMS Innovation Center and an Adjunct Assistant Professor in Health Policy and Management at The Johns Hopkins Bloomberg School of Public Health. He has a Doctor in Public Health from the Bloomberg School of Public Health and a Master’s degree in Business Administration from Yale University School of Management. Read Bio.

Theresa Bittle, RN, BSN, CCM


Theresa C. Bittle RN, BSN, CCM has extensive clinical as well as administrative background. She has held leadership positions in Trauma and Critical Care as well as Health Plan Care Management. Ms Bittle has served on multiple leadership committees focused on Care Management design and transformation at the Health Plan as well as Health System levels. She has experience in selection, configuration and implementation of clinical software systems and development of metrics to evaluate outcomes, especially related to Case Management and Utilization Management areas of focus. She has integrated knowledge gained about communities into her scope of practice through direct involvement with multiple community based initiatives, HealthCare for the Homeless, Community Needs Assessment, as well as networking and knowledge gained as a graduate of Leadership Baltimore. Her areas of interest include healthcare delivery models with particular interest in Population Health Management. Ms Bittle is currently the AVP of Clinical Operations for MedStar Health Plans. She holds a BSN from the University of Maryland and is a Certified Case Manager.

William Brieger, DrPH


William (Bill) Brieger is a Certified Health Education Specialist and has a Doctorate in Public Health (DrPH) in International Health from the Johns Hopkins University (JHU) and a Masters in Public Health (MPH) in Health Behavior and Health Education from the University of North Carolina, Chapel Hill. He is a Professor in both the Health Systems and the Social and Behavioral Interventions Programs of the Department of International Health and also serves as JHPIEGO’s Senior Malaria Specialist. He is internationally renowned for his expertise in the social and behavioral aspects of disease control and prevention, with special emphasis formative research and behavior change program design and evaluation. A particular focus has been on training peer educators, community volunteers and other community resource persons to take an active role in health education and health service delivery. He has served as a consultant in developing community participation, health education and health systems strengthening interventions with organization such as U.S. Centers for Disease Control and Prevention, JHU Center for Communication Programs (JHU-CCP), World Bank, the World Health Organization, African Program for Onchocerciasis Control, UNICEF, Roll Back Malaria (RBM) Partnership, US Peace Corps and various USAID implementing partners. Bill was a member of the Mectizan Expert Committee and is currently a member of the RBM Harmonization Working Group. Read Bio.

Avonne Connor, PhD


Dr. Connor is an Assistant Professor in the Department of Epidemiology and holds a joint appointment in Oncology at the Johns Hopkins Sidney Kimmel Comprehensive Cancer Center. She is currently the Principal Investigator of a breast cancer study to evaluate novel approaches to address survival disparities among African American, Hispanic and non-Hispanic white women from New Mexico and Maryland. Her research focuses on the roles of modifiable risk factors with breast cancer incidence and mortality among diverse study populations. In addition to directing the Online Introduction to Epidemiology course, she is a lab instructor in the core Epidemiologic Methods series and serves as a the course director for two cancer epidemiology courses - Etiology, Prevention, and Control of Cancer and Cancer Epidemiology, Prevention, and Control during the Graduate Summer Institute of Epidemiology and Biostatistics at Johns Hopkins. Read Bio.

Ashwini Davison, MD


Dr. Ashwini Davison has extensive experience in helping healthcare organizations derive valuable and actionable insights from their data. As a physician board certified in internal medicine and clinical informatics, she often bridges the divide between practicing clinicians and computer programmers. Her primary area of interest is in the development of clinical algorithms using a combination of data from claims, EMR, and other novel sources. Dr. Davison is a faculty member in the School of Medicine with a secondary appointment in the Department of Health Science Informatics and a joint appointment in Health Policy and Management. She regularly participates in the Epic Ambulatory Clinical Decision Support meetings for Johns Hopkins Medicine and is currently the Course Director for a 1st year medical student class on Informatics and Digital Health. Dr. Davison collaborates with the Center for Population Health IT (CPHIT) on research comparing the additive value of claims to structured EMR and free text data in identifying and predicting risk for elderly populations. She is also the chair for Health Tech Innovators, a new initiative of the Maryland Center for Entrepreneurship. Prior to founding Informatics Advantage, Dr. Davison was a Medical Director at Inovalon, where here role included clinical and quality oversight of a disease management program that addressed gaps-in-care for elderly members with high-risk chronic conditions. She completed her residency at Johns Hopkins hospital, received her M.D. from UCLA, and a B.A. with honors from Stanford University. Read Bio.

Andrea Gielen, ScD


Dr. Gielen, ScD, is a Professor in the Department of Health, Behavior, and Society at the Johns Hopkins Bloomberg School of Public Health. She is also a Professor in the Departments of Health Policy and Management, and Population, Family, and Reproductive Health. Dr. Gielen is Director of the Center for Injury Research and Policy. She is also faculty with the Center for the Prevention of Youth Violence. Her current research focuses on the use of computers for patient and public safety education; community interventions to improve home safety; translation research to disseminate proven injury prevention interventions; the impact of housing conditions on child safety; and stage tailored clinical interventions for survivors of domestic violence living with or at risk for HIV/AIDS. Read Bio.

Douglas E. Hough, PhD


Douglas E. Hough, Ph.D., is Associate Scientist and Associate Director of the Master in Healthcare Management program in the Department of Health Policy and Management at the Bloomberg School of Public Health, Johns Hopkins University. He teaches in the areas of health economics and strategic planning. His research interests are in the application of the emerging field of behavioral economics to health care issues and in identifying the optimal size and structure of a physician practice. His book, titled, Irrationality in Health Care: What Behavioral Economics Reveals about What We Do and Why, was published by Stanford University Press in 2013. Dr. Hough has been a research economist at the American Medical Association, and a consultant in three health care strategy firms. He is a frequent speaker and author on health care issues. Dr. Hough earned his M.S. and Ph.D. in Economics from the University of Wisconsin, and his B.S. in Economics from MIT. Read Bio.

Hadi Kharrazi, MHI, MD, PhD


Dr. Hadi Kharrazi is a core faculty of Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health with a joint appointment at the Johns Hopkins School of Medicine. He is the research director of the Johns Hopkins Center for Population Health IT (CPHIT) and serves on multiple national advisory boards and steering committees including: the Public Health Informatics Working Group Executive Committee of the American Medical Informatics Association (PHI‐WG AMIA), the Steering Committee of the Academy Health’s Health IT Interest Group (AH‐HIT IG), and the DHHS ONC’s Measurement Community of Practice. He is currently the director of the DrPH Informatics track program at the Johns Hopkins School of Public Health, and the co-director of the PhD program in Health Informatics at the Johns Hopkins School of Medicine. Read Bio.

John McGready, PhD


Since joining the faculty at Johns Hopkins, Dr. McGready has split his time between research collaborations and statistical education. He is the primary instructor for three on-site courses, four online courses, as well as being co-creator and instructor of intensive data analysis workshops offered in the School's Summer Institute of Epidemiology and Biostatistics. Dr. McGready has won numerous teaching awards, from the Bloomberg School of Public Health, the Association of Schools of Public Health, and the American Statistical Association. He is actively involved in collaborative research with investigators from the Bloomberg School of Public Health, Johns Hopkins Hospital, and the Johns Hopkins School of Medicine. Read Bio.

Ligia Paina, PhD


Dr. Paina's educational background is in international studies and global public health systems. Her research aims to improve understanding of how to intervene in complex systems in order to ensure quality and affordable health care access, particularly for poor, rural, and underserved populations. She is interested in applying multi- and trans- disciplinary approaches to strengthen organizational and research capacity, to improve health workforce management and policy, and to understand system adaptation, particularly in health systems in transition. In terms of research methods, she has experience with both qualitative and quantitative research and am particularly interested in applying systems thinking tools and approaches to public health (e.g. system conceptualization tools, system dynamics, network analysis, and participatory strategies). Prior to joining the faculty, Dr. Paina worked in both private sector and bilateral agency environments. Read Bio.

Amal Wanigatunga, PhD


Dr. Wanigatunga is an Assistant Scientist in the Department of Epidemiology and associate faculty with the Center on Aging and Health. His primary focus is exploring the intersection between physical activity, function, and disability in older adult populations. Currently, most of his research focuses on physical activity measured in the BLSA (Baltimore Longitudinal Study of Aging), an ongoing study of normative aging in well-functioning older adults. He is an active research collaborator with investigators spanning across the John Hopkins Schools of Public Health, Medicine, and Nursing. In addition to co-instructing the Online Introduction to Epidemiology course, he serves as a lab instructor in the core Epidemiologic Methods series held on campus. Read Bio.


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