Staff Biographies



Executive Director, Susie Lee

Ms. Lee is the Executive Director of the Foundation. She is responsible for the overall management of the Foundation, including for areas of strategic planning, financial management, and grant programs. Her focus has been on positioning the Foundation to be a catalyst for idea to improve access to health care for the medically underserved, through strategic grant making and convening community partners. Her career in public health has spanned over two decades at the local, national, and international levels for various organizations. Previously, she held management positions at Public Health Solutions in New York City and Gavi – the Vaccine Alliance, where her focus was on managing public health programs and monitoring of grants to ensure effective implementation and improved health outcomes. Earlier in her career, she worked in health policy at the Association of Maternal and Child Health Programs and at the Children’s Defense Fund where she discovered her passion for public health as an intern in the health division. She has a Bachelor of Arts in Anthropology with Honors Distinction from the University of Pennsylvania and a Master of Public Health from the Mailman School of Public Health at Columbia University. Ms. Lee is a Northern Virginia native and lives in Fairfax County with her husband. To email Susie click here.


Senior Program Officer, Erin Matthews Thomas

Ms. Matthews Thomas is the Senior Program Officer at the Foundation. She is responsible for overseeing the Foundation’s grant programs. Prior to joining the Potomac Health Foundation, she was with the DC Department of Health as a Public Health Analyst and Cessation Specialist. In her role, she led the “DC Calls It Quits” cessation campaigns and oversaw the DC Tobacco Quitline. She also served as Project Officer to grantees providing cessation services in DC and monitored grants to identify technical assistance needs. She previously had roles with the Fairfax County Health Department, American Society of Clinical Oncology, and Washington Regional Transplant Community. She has a BS from Miami University in Oxford, Ohio, a MS from the University of South Carolina and a Health Services Administration Specialist degree from The George Washington University. Ms. Matthews Thomas lives in Dumfries with her husband and two children. She is an active member of Alpha Kappa Alpha Sorority, Inc. – Psi Psi Omega Graduate Chapter, Stafford, Virginia and a volunteer with the Girl Scouts of the Nation’s Capital. To email Erin click here.


Administrative Assistant, Imani Amponsah

Ms. Amponsah is the Administrative Assistant at the Foundation. She is responsible for providing general administrative support to the Executive Director, Senior Program Officer, and Board of Directors of the Foundation as well as works closely with community partners. She has interned at a variety of nonprofit organizations, including Sisters Helping Each Other, Inc., NDUTIME Youth and Family Services, Center for Cultural Experiences in Prevention, and the East End Pregnancy Center. Additionally, she worked as a Research Assistant at the VCU School of Social Work, where she supported a study about the relationship between childhood maltreatment and substance use. Prior to joining the Potomac Health Foundation, she was an Assistant Coordinator at Alternative Paths Training School, Inc., where she provided administrative support to staff, students, families, and guests as well as local/state representatives. She has a Bachelor of Science degree in Psychology with University Honors from Virginia Commonwealth University in Richmond, Virginia, with specializations in African American Studies and Global Education. Ms. Amponsah grew up in Maryland and now currently resides in Prince William County with her husband and son. To email Imani click here.