Elizabeth Barnhart comes to MPI as a seasoned international public health and humanitarian professional with over 30 years of program management experience. She has worked with a broad spectrum of organizations, including the United Nations, U.S. government agencies, and international NGOs. Elizabeth has led large-scale humanitarian, health, and development initiatives spanning the United States, Africa, the Middle East, Asia, and Europe, applying public health approaches to strengthen prevention, crisis response, and long-term resilience. Most recently, she served with the United Nations Refugee Agency (UNHCR) as a Senior Regional Officer, directing humanitarian cash assistance programs across 13 countries in Central America and the Caribbean, following several years managing refugee assistance and financial inclusion programs in Jordan.

Elizabeth’s career reflects a rare blend of technical expertise, cross-sector leadership, and diplomatic skill. She has managed budgets exceeding $90 million, built coalitions across the international community, and introduced innovative solutions such as biometric verification and collaborative financing mechanisms to humanitarian delivery systems. Beyond her professional roles, she is a Rotary member of the Duvall Rotary club, She holds a Master of Public Health in International Health and Epidemiology from Emory University.

Meg L. DeRonghe joined MPI as the Executive Director in September 2025. She comes to MPI having served in  multiple roles at the Gates Foundation (GF) over her ten year tenure, most recently serving as the Senior Advisor, Global Health Agencies & Funds providing strategic guidance on leadership development, stakeholder engagement and gender transformative investing. Previously, Meg served in leadership positions working on strategic planning for diversity equity and inclusion, family planning and women's health, and malaria and neglected tropical diseases.

Between those roles at GF, Meg was the Global Engagement Director for WomenLift Health leading strategic communications, partner engagement and external relations including a global advisory board. Prior to the Gates Foundation, Meg was the first-hired Director of Advocacy and Communications for PATH’s malaria program. She has 25 years of experience in advocacy, public policy, and resource mobilization for a range of global health issues from sexual and reproductive health and rights (SRHR) to malaria.

A lawyer by training, Meg brings an equity and access lens to every role she fills. She has taught courses on women’s rights at Georgetown University, brought gender-based asylum claims pro bono and worked to influence policy from a village council in Botswana to the US Congress to the World Health Organization to improve the lives of women and girls. Meg proudly sits on the advisory board of directors for Speak Up Africa, a Dakar-based advocacy organization committed to lifting up African actors to drive equitable and sustainable change towards healthy and thriving African societies.

Christina Leonidas is a dynamic creative professional with a specialization in graphic design and visual communication. Currently serving as the Creative and Events Coordinator at Malaria Partners International, Christina plays a pivotal role in enhancing the organization's visual communication strategies and orchestrating impactful live events. With a background in both design and events,Christina brings valuable experience in program development, marketing, and visual communication to her current role.

Her educational background includes a Bachelor's degree in Literature from American University and a Bachelor's degree in Design from Seattle University, reflecting her interdisciplinary approach to problem-solving and creative expression.

Outside of her professional endeavors, Christina is an active member of the Bellevue Breakfast Rotary Club, where she takes on the role of PR Committee Chair. In this capacity, she leads promotional initiatives and strategic communications, contributing significantly to the club's outreach efforts for both the club and its signature annual fundraising event, the All In for Autism 5K Run/Walk, demonstrating her commitment to community engagement and social impact.

Christina's passion for design, coupled with her dedication to service and community involvement, defines her as a versatile professional with a profound impact on both organizational and societal fronts.