Epidemiology and Biostatistics


Elizabeth K. Rasch, PT, PhD
Dr. Rasch is a Staff Scientist and Chief of the Epidemiology and Biostatistics and a Staff Scientist at the NIH Clinical Center. She received her BS in Physical Therapy (PT) from the University of Delaware, her MS in PT from the University of Southern California, and her PhD in Rehabilitation Science with a concentration in Epidemiology from the University of Maryland, Baltimore. She was one of the first clinical specialists in neurology to be board certified by the American Board of Physical Therapy Specialties. Her research is directed toward promoting the health, participation, and full inclusion of people with disabilities in family and community life by informing and impacting health services, programs, and policies. More specifically, she studies the development and consequences of secondary conditions among adults with disabilities, health care delivery related to these conditions, and the effects of these conditions on function over time. Dr. Rasch has co-authored over 40 articles. She is a member of the Editorial Board for the Disability and Health Journal and serves the American Public Health Association in a national capacity.

Stephen P. Gulley, PhD, MSW
Dr. Gulley conducts research on disability and health policy for the Epidemiology and Biostatistics Section. He also teaches in the Health, Science, Society and Policy Program at Brandeis University. He received his BA in sociology from Oberlin College in 1991, his masters in social work from Boston University in 1996 and his Ph.D. in health policy from the Heller School at Brandeis in 2006. Dr. Gulley’s research focuses on access to, coordination of and financing for health care for adults with chronic conditions and disabilities. His recent projects examine the overlap between these two groups, racial and ethnic disparities in their care, gaps in their insurance coverage, as well as coordination of care through the medical home for individuals with chronic health care needs. His publications appear in such journals as Medical Care, Social Science and Medicine, the American Journal of Public Health, Public Health Reports, and the Disability and Health Journal.

Pei-Shu Ho, PhD
Dr. Ho is a Health Services Researcher in Epidemiology and Biostatistics at the NIH Clinical Center. Her research interests include access to care, quality of care, and treatment outcomes among vulnerable populations. She has conducted health- and disability-related studies that examined health care experiences of low-income working age adults with physical disabilities, the impact of physical activity on health and secondary conditions among people with spinal cord injury, and the effect of support services on employment outcomes among people with disabilities. Her work has been published in peer-reviewed journals and presented at national scientific meetings. She is currently under contract with Epidemiology and Biostatistics to contribute to the RMD inter-agency agreement with SSA and to provide analytic and scientific research support services to Rehabilitation Medicine Department staff and trainees. Dr. Ho holds a Master’s degree in Health Services Administration from the University of Arkansas at Little Rock and a Ph.D. in Health Services Organization and Research from the Virginia Commonwealth University.

Ao Yuan, PhD
Dr. Ao Yuan is a senior Biostatistician at the Department of Biostatistics, Bioinformatics and Biomathematics, Georgetown University. In addition, he is a contractor with Epidemiology and Biostatistics Section of the Rehabilitation Medicine Department at the NIH Clinical Center, to provide statistical research and analytic support services for the inter-agency agreement with SSA. He received a Ph.D. in Statistics from the University of British Colombia, Canada. His research interests include biostatistics, applied statistics, statistical genetics, non-parametric and parametric inference, and Bayesian inference.

Pam Mazerski, BA, MPA
Ms. Mazerski is a contract senior consultant in the Epidemiology and Biostatistics Section of the Rehabilitation Medicine Department at the NIH Clinical Center. She holds a Bachelor's Degree in Jurisprudence and a Masters in Public Administration from American University. She served in numerous senior executive positions at the Social Security Administration (SSA) where she directed SSA's $80 million disability and income security research budget, including the administration of contracts, grants, and interagency agreements. Ms. Mazerski has extensive background working across federal agencies, as well as state and local entities. She also led the development and implementation of numerous research demonstration projects aimed at creating employment opportunities for adults with disabilities and youth, including SSA's Youth Transition Demonstration Projects. She also served as a professional staffer on the House Ways and Means Social Security Subcommittee where she worked on the Ticket to Work and other disability and employment related legislation.

Daniel Hobbs, BA
Daniel Hobbs is a Management Analyst from Banner Staffing. He completed a Bachelor of Arts in Government from the University of Virginia, and is currently pursuing a Master of Science in Leadership with a concentration in Non-Profit Management from Northeastern University. His previous positions include serving as a legislative and constituent services staff member for fmr. Representative Rick Boucher from Virginia's 9th US Congressional District, as a Senior Executive Assistant to the leadership team of the Biomedical Advanced Research Development Authority (BARDA), and as the Office Manager for the US Department of the Navy's Strategic Systems Program Office. Prior to joining the Epidemiology and Biostatistics section, he served as Assistant to the Chief of the Rehabilitation Medicine Department. His current role is to provide administrative support for all the Section's research projects, with special emphasis on the SSA projects and associated regulatory processes involved. He also provides general administrative support such as budget management, scheduling, travel procedures, editing, meeting planning, procurement activities and other general administrative tasks.

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This page last updated on 09/15/2017

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