Executive Leadership Team
President & CEO
As president and CEO of LLS, John Walter drives LLS's long-range strategic plan with a focus on broadening its base of support and diversifying its revenue sources to achieve its goal of finding cures and ensuring access to treatments for all blood cancer patients.
Louis J. DeGennaro, Ph.D.
Chief Mission Officer
As chief mission officer, Louis J. DeGennaro Ph.D., is responsible for oversight of all LLS mission functions: public policy, patient access, educaton and advocacy services and research, with the goal of effectively deploying resources in pursuit of the LLS mission.
Chief Administrative Officer and Chief Financial Officer
In her role as chief administrative officer and chief financial officer, Rosemarie Loffredo ensures that LLS achieves the ambitious goals of its long-range strategic plan. Loffredo leads all administrative and staff functions, including finance, information technology and human resources, and she is responsible for enhancing LLS?s organizational efficiency and effectiveness in partnership with the organization?s executive team.
George Omiros, CFRE, CAE
Executive Vice President, Chief Campaign & Field Development Officer
As the head of campaign & field development, George Omiros provides strategic direction and overall management of LLS's chapters and their campaign activities, including LLS's core campaigns: Team In Training, Light The Night Walk, Man & Woman of the Year and School & Youth programs in the United States and Canada. He joined LLS in 1988 and served as executive director of the Western Pennsylvania & West Virginia office. He concurrently served LLS as a national marketing representative, group director, national director of major gifts, national director of community campaigns, national director of federated campaigns, and since 2008 as senior vice president of field development.
Chief Development Officer
As Chief Development Officer, Mark Roithmayr oversees The Leukemia & Lymphoma Society's donor development initiatives. Roithmayr comes to LLS with a successful track record in the health-care non-profit sector.
Executive Vice President and Chief Marketing Officer
Lisa Stockmon, executive vice president and chief marketing officer, has been with LLS since 2012. She is a proven marketing executive with over 20 years in marketing, branding and business development.
Mark Velleca, M.D., Ph.D.
Chief Policy and Advocacy Officer
Mark Velleca, M.D., Ph.D., heads LLS's office of public policy in Washington D.C. In this position, he oversees the strategy and implementation of LLS's legislative and regulatory policy initiatives. Velleca is also responsible for patient access, education and advocacy, as well as professional education programs at LLS.