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Matthew Trombley has a Ph.D. in economics with concentrations in health and applied econometric methods. He has extensive experience designing and conducting evaluations for the Center for Medicare & Medicaid Innovation (CMMI), including analyses of historically underserved populations.

Matthew Sweeney leads business development and account management for Abt’s portfolio of work at the Centers for Medicare & Medicaid Services (CMS). With more than 20 years of healthcare experience partnering with federal agencies, small businesses, and the private sector, Sweeney has led large research and operational projects focused on various dimensions of alternative payment models, including:  implementing and validating quality measures, program support for hospital pay-for-performance programs, and advising clients on the design and refinement of their value-based purchasing arrangements.

Sean McClellan, Ph.D. is a mixed-methods researcher with over a decade of experience in full cycle health services research. He has experience managing research projects, developing analytic designs, cleaning and analyzing administrative data, fielding rigorous surveys, conducting qualitative interviews, and communicating findings in plain language.

Moira Forbes is a health policy leader with over 25 years of experience working with state and federal agencies on Medicaid and CHIP policy and operations. She focuses on providing time-sensitive, evidence-based analysis to support policymaking, operational planning, and program evaluation. She has worked with a wide range of health care stakeholders including providers, employers, public and private payers, foundations, trade associations, the Centers for Medicare & Medicaid Services and other health and human services agencies, state legislatures, and Congress. These diverse experiences help her provide well-informed insights for clients at all stages of the program lifecycle.

ZeAmma Brathwaite has over 20 years of experience partnering with private organizations and federal agencies to improve access to care and health outcomes for individuals and communities. A certified project management professional, Brathwaite has extensive experience leading multidisciplinary teams in the design, implementation, and evaluation of complex, large-scale transformation efforts using improvement science methods and tools to accelerate change.

Elaine Baruwa has more than 15 years of experience conducting program evaluations, economic evaluations, and working on pricing and costing policies and tools for the financing of health services and health systems in Nigeria, Haiti, Ethiopia, China, Bangladesh and other low-income countries.

Jill Khadduri came to Abt Global in 2000 from the U.S. Department of Housing and Urban Development, where she was a career senior executive deeply involved in housing research and policies.She conducts research on homelessness and homeless-assistance programs and on housing programs and strategies, among them the Low Income Housing Tax Credit, Housing Choice Vouchers and public housing. She serves as a senior advisor to major research projects conducted by Abt’s housing practice, including studies that use experimental designs to measure the impacts of homebuyer counseling and of giving homeless families priority access to different types of housing and shelter programs. One of Abt’s senior fellows, she completed a history of HUD from its founding in 1965 through its 50th anniversary in 2015. She co-authored the book, In the Midst of Plenty: Homelessness and What To Do About It, with Marybeth Shinn.

Evelyne Alyko is a medical doctor, public health specialist, and entomologist with 21 years of experience in public health program management. She specializes in the planning, implementation, monitoring, and evaluation of malaria prevention and control projects. She has led or provided technical assistance for donor-funded vector control programs in seven countries and served in Benin’s National Malaria Control Program (NMCP). Alyko also has experience working with global organizations such as the Global Fund and the World Bank.

Nadiia Zaritska is a Ph.D. sociologist with 13 years of extensive experience in programme management, research, monitoring, evaluation, research, and learning (MERL), and gender equality and social inclusion (GESI) analysis. With a steadfast commitment to promoting gender equality, social inclusion, and human rights, Zaritska has focused her efforts on driving reforms, democratization, and addressing the social repercussions of conflict and war. Her professional journey has led her to engage closely with national and local governmental bodies in Ukraine, Georgia, and Moldova.