Who We Are

Kathy Postel Kretman, Ph.D.


Kathy Postel Kretman, Ph.D., is the Director of Georgetown University’s Center for Public and Nonprofit Leadership; Waldemar A. Nielsen Chair in Philanthropy; and Research Professor at the McCourt School of Public Policy. She has devoted most of her career to the development of leaders in the public, nonprofit and philanthropic sectors. One of the highlights of Dr. Kretman’s career has been directing Georgetown’s nationally recognized nonprofit executive certificate program, which now has more than 1,400 alumni across the globe. Additionally, she has directed customized leadership programs for organizations such as the USAID, the Qatar Foundation, United Way International, the International Monetary Fund, National Urban League, the National Hispana Leadership Institute and the Prosperity Now’s Racial Wealth Divide Initiative. Earlier in her career, Dr. Kretman advised chief executive officers on corporate social responsibility; researched community and economic development issues in New York City; and investigated discriminatory practices in employment, voting rights, and municipal service delivery for the U.S. Department of Justice’s Civil Rights Division. She holds a Ph.D. in Political Science from the University of Maryland, an M.A. in Public Administration from George Washington University, and a B.S. from the University of Texas at Austin. Click for more

Luisa Boyarski, Ph.D.


Luisa Boyarski, Ph.D. is the Associate Director of the Center for Public & Nonprofit Leadership. She is involved in developing and executing the Center’s many executive education and customized programs and representing the Center at Georgetown University and in the broader community. She recently researched and wrote Advancing Racial Equity Within Nonprofit Organizations. Dr. Boyarski frequently conducts workshops and gives keynote addresses on NGO Management and High Impact NGOs to international delegations, including trainings in China, Colombia, Hungary, Mongolia, Panama and Romania. She has also co-taught an undergraduate course on Philanthropy and Social Change. Prior to working at CPNL, she was the Executive Director of a D.C. based nonprofit working on global warming prevention with Arctic indigenous people. She currently leads a coalition of grassroots groups in Virginia, representing over 10,000 citizens. Dr. Boyarski received her Ph.D. in Comparative Government from Georgetown University, with a research focus on the role of nonprofit coalitions in public policy advocacy. Click for more

Tamara Copeland

Tamara Copeland


Tamara Lucas Copeland is a Visiting Practitioner at the Center for Public and Nonprofit Leadership. Tamara recently retired after twelve years as president of the Washington Regional Association of Grantmakers (WRAG). In that role, she was the organization’s major thought leader, helping to envision and implement work to meet the needs of the sector and of the region. She was the visionary behind WRAG’s nationally-acclaimed work on racial equity entitled Putting Racism on the Table. She came to WRAG with extensive experience in nonprofit management, policy and children’s issues having led Voices for America’s Children, the National Health & Education Consortium, and the Infant Mortality Initiative of Southern Governors’ Association and Southern Legislative Conference as well as having been Congressman Bobby Scott’s (D-VA) Legislative Director. In 2017, Tamara was appointed as the Visiting Nielsen Fellow at Georgetown University’s McCourt School of Public Policy to explore the role of philanthropy in addressing racial equity in the DC region and co-teach a graduate seminar on philanthropy and racial justice. In 2018, her memoir, Daughters of the Dream: Eight Girls From Richmond who grew up in the Civil Rights Era was published by Inspire, an imprint of Adducent. Every month, she posts a blog, by the same name, to explore some aspect of her racial reality.

Hannah Hahn

Hannah Hahn


Hannah Hahn is a Visiting Practitioner at the Center for Public and Nonprofit Leadership and an active member of the DC philanthropic community.  She is currently the Program Officer for The Morris and Gwendolyn Cafritz Foundation focusing on Education, Children, Youth and Families.  Prior to joining Cafritz, Hannah was the Program Manager at The J. Willard and Alice S. Marriott Foundation, where she established its strategic investment priorities and oversaw grants of over $30 million. Hannah came to philanthropy after a decade of nonprofit management experience focused on economic development, women’s empowerment, education, and youth development. Hannah has worked and supported nonprofit programs in 23 countries in Africa, Asia, Eurasia and South America.  She was also the founding COO of Sustainable Health Enterprises (SHE), an award-winning social enterprise that reduces school absenteeism for Rwandan girls by manufacturing low-cost sanitary pads. In 2012, Hannah was recognized by The Society for International Development with the Andrew W. Rice Award for passion, commitment, creativity and impact in the international development field. She has a B.A. in International Development from McGill University and a M.Ed. in International Education Policy from The Harvard Graduate School of Education. 

Andreas Kern, Ph.D.


Andreas Kern is visiting Assistant Professor at the McCourt School of Public Policy. He teaches in the areas of international political economy and development economics. His research mainly concentrates on the political economy of macroeconomic and financial governance in developing and transition economies, and has been published in internationally renowned journals. Previously, Dr. Kern has been a Senior Research Fellow at the Jean Monnet Centre of Excellence for European Integration at Freie Universität Berlin. In this role, he has been engaged in various scientific and consultancy projects for the European Commission and the German government. Andreas Kern earned his Ph.D. in Political Economy from Freie Universität Berlin and holds an M. A. in economics from Ludwig Maximilians Universität in Munich.

Calista MacHarrie

Calista MacHarrie


Calista MacHarrie is a 2019-2020 Pablo Eisenberg Public Interest Fellow at the Center for Public and Nonprofit Leadership. Her work with the Center involves researching executive leadership education and programming. Calista is pursuing her MPP at the McCourt School of Public Policy, where she will further develop her research and analytical skills, focusing on foreign policy and international development. Calista has spent years working in nonprofits and journalism. She recently spent two years implementing a DOJ grant where she recruited and trained STEM mentors. Prior to that, she lived in Myanmar for two years during the country’s democratic transition and edited the digital newspaper The Irrawaddy. She earned an M.A. in journalism and international reporting from the City University of New York and a B.A. in education from Temple University. 

Regina Woolridge


Regina Woolridge is the Office Assistant at the Center for Public and Nonprofit Leadership. Regina is a Georgetown University senior majoring in Government—with a concentration in Human Rights—and minoring in Spanish with a Pre-Medical concentration. She has previously interned as a journalist with D.C. Witness, writing daily articles of murder trials. Prior to that, she worked as the Development Intern and Community Outreach Facilitator at a clinic in rural Guatemala. Regina looks forward to combining medicine and journalism to help improve human rights for the disadvantaged. She is currently the president of the Georgetown Chapter of GlobeMed, which aims to improve health equity through partnerships with international grassroots organizations.

Nile Blass


Nile Blass is the Communications Assistant at the Center for Public and Nonprofit Leadership. In her role, she provides support for CPNL’s social media platforms, newsletters and alumni outreach. As the Director of Alumni Relations for BSA and member of the GU272 Advocacy Team, Nile enjoys working within the Georgetown community to promote intersection and inclusion. As a policy consultant for the federal government, she hopes to continue that work off-campus. Nile is a sophomore in the College, pursuing a dual-degree in Government and African American Studies.