You are using an older version of Internet Explorer that is not supported on this site. Please upgrade for the best experience.

DHDPS Adjunct Fellows

Sylvia Brandt, PhD, MS

Dr BrandtSylvia Brandt is a Research Professor in the School of Public Policy at the University of Massachusetts, Amherst. She holds degrees in economics (B.A., Oberlin College; M.S., University of California, Berkeley) and agricultural and resource economics (Ph.D., University of California, Berkeley).

Her primary research interests include valuation of chronic illnesses, measurement
of disparities in health outcomes and methodologies for evaluating health interventions. Her work expands on traditional economic models to include factors such as exposure to environmental triggers, disparities in asthma treatment, and diversity of preferences among affected populations. Dr. Brandt specializes in developing surveys on risk perceptions and health behaviors to improve models of household behaviors. Dr. Brandt’s research has been supported by grants from the National Science Foundation, US Environmental Protection Agency, Centers for Disease and Control, South Coast Air Quality Management District, National Oceanic and Atmospheric Administration, and National Fund for Science and Technology (Chile).

Her research on childhood asthma has been published in journals such as the Journal of Allergy and Clinical Immunology, Pediatrics, Environmental Health Perspectives, Value in Health, American Journal of Public Health, Annals of Allergy, Asthma, and Immunology, Science of the Total Environment, Health Education and Behavior, and Preventative Medicine Reports. Her co-authored paper, "Costs of childhood asthma due to traffic-pollution in two California communities," was named as one of the 20 most important publications of 2012 funded by the National Institute of Environmental Health Science. Brandt has served on the US Environmental Protection Agency's Science Advisory Committee for Environmental Economics as well as on the Science Advisory Committee for the cost-benefit review of the Clean Air Act.

David Chin, PhD


David Chin is an Assistant Professor of Health Promotion and Policy in the School of Public Health and Health Sciences at the University of Massachusetts Amherst. Dr. Chin’s research focuses on health care quality measurement to inform national health policy, health care systems, and clinical practice. He completed his doctorate in epidemiology at the University of California, Davis and a postdoctoral fellowship in the Quality, Safety, and Comparative Effectiveness Research Training Program, in the Center for Health Policy and Research at the UC Davis Health System.

Most recently, Dr. Chin has focused on the development of data science and computational methods – natural language processing, quantum computing machine learning algorithms, and health informatics – to quantify social determinants of health and reduce health disparities. His research interests also include hospital and physician performance measures, patient safety, and the impact of public reporting on health outcomes.

Elizabeth Evans, PhD, MA

Elizabeth Evans PhDLiz Evans is an Associate Professor of Health Promotion and Policy in the School of Public Health and Health Sciences at the University of Massachusetts Amherst. Dr. Evans researches how health care systems and public policies can better promote health and wellness among individuals with opioid and other substance use disorders, mental health conditions, and infectious diseases. She completed her doctorate in public health at the University of California Los Angeles and a health services research and development postdoctoral fellowship at the Veterans Affairs Center for the Study of Healthcare Innovation, Implementation, and Policy. Much of her research has originated from community-partnered multi-site longitudinal cohort study designs and mining of linked administrative data provided by health care delivery systems, social services institutions, and criminal justice sources. Her current research focuses on how the criminal justice system can impact health outcomes. She is mPI of the Massachusetts Justice Community Opioid Innovation Network (MassJCOIN) and she leads several other federal and foundation-funded projects.

Liana Fraenkel, MD, MPH

Dr Fraenkel

Liana Fraenkel, after a 20-year career at Yale University, is now the Director of Patient Centered Population Health Research at the Berkshire Health Systems and remains Adjunct Professor of Medicine at Yale University School of Medicine. Dr. Fraenkel’s research program has focused on improving our understanding both physician and patient decision-making and on developing methods to improve the quality of decision making for patients faced with complex decisions involving multiple options. She has conducted numerous studies incorporating qualitative and quantitative methodologies that evaluate patient attitudes towards drug toxicity, physician and patient treatment preferences, and the contextual influences on risk perceptions. She has also developed several novel methods of communicating risk information and engaging patients in shared decision making with decision support tools. She is now focused on building a population health research program to address some of the most pressing health problems in the region. Dr. Fraenkel was funded by a K24 Mentoring award and has mentored trainees across a broad range of patient-oriented research projects. In 2009, Dr. Fraenkel received the Henry Kunkel Young Investigator Award from the ACR.

Sarah L. Goff, MD, PhD

Dr. Sarah GoffSarah Goff is a board-certified pediatrician and internist, and an Associate Professor at UMass Chan Medical School-Baystate. She is a graduate of the Robert Wood Johnson Clinical Scholars Program at Yale, the 2011 recipient of the Tufts University School of Medicine KL-2 Mentored Career Development Award, and a K23 Career Development Award from NICHD.

Her research interests include maternal-child health care quality and safety with a particular interest in public reporting of quality measures. Additional interests include qualitative methodology, palliative care research, impact of health care delivery systems on patient outcomes, and how communication impacts health outcomes.

Samuel Headley, PhD, FACSM, ACSM-RCEP

samheadleyphotodaySam Headley is a professor in the Exercise Science & Athletic Training Department at Springfield College. He is a fellow of the American College of Sports Medicine (ACSM) and an ACSM Certified Clinical Exercise Physiologist. He is also a former president of the Clinical Exercise Physiology Association (CEPA) and the current Program Director of the Exercise Physiology program at Springfield College. The Clinical Exercise Physiology program at Springfield College is one of the few CAAHEP accredited clinical exercise physiology programs in the country. Dr. Headley’s research interest include the effects of lifestyle interventions (i.e., diet and exercise training) in persons with chronic kidney disease and the effect of exercise training on blood pressure in persons with hypertension, with a special interest in hypertension in Black individuals.

Rachele Hendricks-Sturrup, DHSc, MSc, MA

Rachele HendricksSturrupRachele Hendricks-Sturrup is a mixed-methods researcher and implementation scientist engaged at the forefront of health policy and healthcare innovation. Presently, she is the Research Director of Real-World Evidence at the Duke-Margolis Center for Health Policy in Washington, DC. Her teaching duties presently include a casual instructor appointment at the University of Pennsylvania Perelman School of Medicine, Department of Medical Ethics and Health Policy, and an adjunct faculty appointment within the Ohio University College of Health Sciences and Professions, Department of Interdisciplinary Studies. Prior to her leadership role within the Duke-Margolis Center for Health Policy, she served as Health Policy Counsel and Lead at the Future of Privacy Forum, a Washington DC-based think tank. She completed her research fellowship at Harvard Pilgrim Health Care Institute and Harvard Medical School within the Department of Population Medicine, Division of Health Policy and Insurance. To date, she has authored and co-authored over 25 peer-reviewed papers and white papers and 45 media contributions, book reviews, and book chapters. She has also presented her research and at several workshops, conferences and convenings.

Cristina Huebner Torres, PhD, MA

Cristina Torres_Color_2019_smCristina Huebner Torres is a community-based social epidemiologist and healthcare leader. She is a long-time research and public health collaborator with academic, clinical, and community partners. She is the Vice President of Research and Population Health at Caring Health Center. She is a Steering Committee member and Affiliated Researcher with the University of Massachusetts-Amherst’s School of Public Health and Health Sciences (SPHHS) Center for Community Health Equity Research (CCHER). Cristina is also Vice Chair of the Public Health Institute of Western Massachusetts and Policy Council member of the Massachusetts Public Health Association.

Her research examines the social determinants of chronic disease prevention and management and population health. She has expertise in community-responsive, mixed method research and public health practice that informs sustainable interventions and policy to promote health equity among ethnically diverse community health center patients. She was ethnographer (2007-2011) and Site PI (2014-2018) on two NIH R01 studies at Caring Health Center that examined health literacy, medication adherence, and cultural health differences among patients with chronic disease. She is currently leading a research project that links Social Determinants of Health (SDoH) screening data, including self-reported stress and community health worker assignment, with clinical and claims data from five community health centers to examine the relationship and etiology of SDoH, disease control, hospital utilization and cost.

Kathleen Mazor, EdD

Kathleen Mazor EdDKathy Mazor is a Professor of Medicine at the University of Massachusetts Medical School, and Associate Director of the Meyers Primary Care Institute. An experienced researcher, a major focus of her work has been understanding patients' perspectives on health and healthcare. Her research on patients' perceptions of care has helped to amplify the voices of patients and their family members, and has provided important insights into what matters most to patients. She has led and collaborated on numerous studies investigating the impact of various strategies for communicating with patients about sensitive and complex health-related topics.

She is a nationally recognized leader in health literacy where she has drawn attention to the need to focus on patient understanding of spoken health information as well as written information. Trained in psychometrics, she has developed numerous instruments for assessing knowledge, attitudes, beliefs, and experiences of patients and providers. Her current research interests include physician-patient communication, patient-perceived breakdowns in care, health literacy, disclosure of medical errors, and decision-making.

Brian Nathanson, PhD

Brian Nathanson PhDBrian Nathanson is the co-founder and Chief Executive Officer of OptiStatim, LLC, a consulting firm specializing in mathematical modeling in health care for both commercial and academic clients. He has a doctorate in Industrial Engineering and Operations Research from the University of Massachusetts at Amherst. In 2013, he achieved diplomate status in the Society for Health Systems. His research interests are in benchmarking, applying operations research methods to clinical health care problems, and econometrics. A majority of his recent projects have focused on critical care or emergency medicine, with an emphasis on sepsis. He is also very active in the Institute of Industrial & Systems Engineers and INFORMS.

Asil Oztekin, PhD

asilAsil Oztekin is an Associate Professor of Analytics & Operations Management, in the Department of Operations & Information Systems, Manning School of Business at the University of Massachusetts Lowell (UML). He is also a participating faculty member at the UMASS inter-campus Biomedical Engineering & Biotechnology (BMEBT) graduate program including UMass Boston, UMass Dartmouth, UMass Lowell, and UMass Medical School-Worcester as well as a member of the UML’s Center for Population Health. Dr. Oztekin received his Ph.D. degree from the School of Industrial Engineering & Management, Oklahoma State University. Prior to joining UMass Lowell, he worked as a visiting professor at the Department of Statistics at Oklahoma State University.

His research has focused on data science, data mining, machine learning, analytical modeling, AI, clinical decision support systems, and decision making with a primary emphasis on healthcare analytics and medical informatics. The journals in which his research has been published include Journal of the American Medical Informatics Association, International Journal of Medical Informatics, Artificial Intelligence in Medicine among others. Dr. Oztekin also holds various editorial positions in the leading journals of his field and has received several regional, national, and international awards from the leading institutions such as NEDSI, DSI, and INFORMS.

Grace Ryan, PhD, MPHRyan Grace

Grace Ryan is a Postdoctoral Fellow at University of Massachusetts Chan Medical School in the Department of Population and Quantitative Health Sciences. She completed her doctoral training at the University of Iowa College of Public Health and holds an MPH degree from New York University. Her research focuses on improving implementation of evidence-based interventions for cancer prevention and screening in under-resourced healthcare settings. In particular, she has focused on using mixed-methods research to explore implementation barriers unique to rural clinics. She has worked on projects related to health behaviors across the cancer control continuum, including nutrition, physical activity, and breast, cervical and colorectal cancer screening. Recently, much of her work has focused on identifying strategies to help improve HPV vaccination rates in rural communities.

Christian Salmon, PhD, MS

christian salmon 140x196Christian Salmon is Chair of the Department of Industrial Engineering and Engineering Management at Western New England University, where he has been faculty since 2012. His primary area of teaching and research interests focus on population exposures to health and safety risks, be it from a public health or occupational health and safety perspective. Towards this, Christian has found the Center for Global Health, Engineering, and Innovations-CZ [a 501(c)3] a Center through which funding for research projects can be sought and results deployed. Some examples of his work include developing a cassava-based alternative to commercial ultrasound gel for use in developing nations wherein costs of gel impacts quality of care, and establishing baseline exposure of commercial fishers’ to environmental hazards onboard commercial fishing vessels, including diesel fumes, exhaust soot, water quality, noise, VOCs, and other exposures. These interests can be summarizes as ‘lowering risk to the individual by raising awareness in the population.” While at Western New England University, Christian has been instrumental in launching the Western New England FIRST Robotics Initiative in an effort to raise awareness of the possibilities of a STEM education for traditionally underserved populations in the Western Mass regions. Prior to Western New England University, Christian was a 20+ year Alaskan Commercial Fisherman working out of Cordova, Alaska, during which time he worked on his undergraduate in civil engineering at University of Alaska Fairbanks, and his master's and doctorate in risk and safety at George Washington University. Christian is a certified Project Management Professional, Risk Management Professional, and an Occupational Safety and Health Administration (OSHA) Outreach Trainer for General Industry. 

Natalia G. Shcherbakova, PhD

natalia shcherbakova 140x196Natalia Shcherbakova is an Assistant Professor at the Department of Pharmaceutical and Administrative Sciences at Western New England University College of Pharmacy. She is also a health services researcher with a local health plan, Health New England. Her research interests include pharmacoeconomics and health outcomes studies, managed care program evaluation, as well as assessment of the impact of mobile technology and social media on health care and education.