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Katharine Witgert is a health policy researcher with 20 years of public health and health care policy experience. Witgert manages research and analysis of health system innovations, conducting program evaluations for federal clients, including design, implementation, and reporting of findings. She provides technical assistance to state officials, primarily in the areas of Medicaid reforms and building Medicaid agency partnerships with public health, behavioral health, and social services programs.

Chris has more than 20 years' experience with leading international law firms and major corporates across Asia Pacific, the United Kingdom and the United States.

Allan Porowski joined the Social and Economic Policy Division of Abt Global in 2014 as a principal associate. He is a leading expert in the design, execution and analysis of randomized controlled trials, quasi-experimental studies and national cross-site evaluations of education, health and other social interventions.

Dr. Sandra Jo Wilson is a social science researcher with more than 25 years of experience designing and conducting rigorous research, systematic reviews, and meta-analyses across education, workforce development, and human services. 

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.

Dr. Jonathan Dorn has more than 20 years of experience in the environment and energy space. He specializesin air pollutant emissions inventory development, air quality, data visualization, regulatory program support, energy systems, and air pollutant mitigation strategies.

Graham Teskey leads Abt Global’s Global Governance practice out of Canberra, Australia. He has 40 years of experience in governance and international development. He has worked with (and for) for the U.K.’s Department for International Development, (the forerunner to the Foreign, Commonwealth and Development Office), the World Bank, and Australia’s Department of Foreign Affairs and Trade. Graham has lived and worked in multiple countries, including Kenya, Tanzania, Uganda, Rwanda, Zambia, Zimbabwe, Malawi, Fiji, Vanuatu, Indonesia, Papua New Guinea, Solomon Islands, Philippines, and Timor-Leste.

Melanie Metropolit is a public health strategist with more than 20 years of experience across federal health, research, and international development initiatives.

Dr. Caroline Logan is a senior associate and health services researcher with over 15 years of experience in policy-focused mixed methods evaluation design, rigorous data collection and analysis, and development of integrated mixed methods reports and deliverables. Her expertise in federal and state health policy includes Medicare and Medicaid financing and delivery systems, care transformation and system integration, maternal health, the health and well-being of children, and the intersection of health and housing.

Anna Winoto has more than 20 years of experience leading and managing multi-disciplinary teams on complex development programs in Indonesia. Her areas of expertise include public health and nutrition, social protection, child protection, decentralized service delivery, and community-led development.  She is a skilled facilitator of multi-stakeholder collaboration. She has worked with the national governments of Australia and Indonesia and with UNICEF.