Meet The Leukemia & Lymphoma Society's Executive Leadership Team


Louis J. DeGennaro, Ph.D.

Louis J. DeGennaro, Ph.D.

President and Chief Executive Officer

Louis J. DeGennaro, Ph.D., is president and chief executive officer of The Leukemia & Lymphoma Society (LLS), the world's largest voluntary health agency dedicated to fighting blood cancers. Dr. DeGennaro leads the operations of this $300 million cancer patient advocacy agency with headquarters in Rye Brook, New York.

Dr. DeGennaro has been a member of the LLS executive leadership team since he joined LLS as chief scientific officer in 2005. He was named LLS chief mission officer in 2009, with responsibility for leadership of all of LLS's mission functions, including research, patient education and support, public policy and advocacy. He was named president and CEO in September 2014.

As the key architect of LLS's cures and access agenda, Dr. DeGennaro conceived and pioneered LLS’s Therapy Acceleration Program® - a venture philanthropy approach to accelerating new treatments to patients through drug discovery and development partnerships with the biotechnology industry. LLS’s foray into venture philanthropy helped redefine the activist role of non-profits to meet urgent unmet medical needs.  Under Dr. DeGennaro’s leadership LLS launched its groundbreaking precision medicine Beat AML® Master Trial in October 2016, leading the offensive against acute myeloid leukemia, one of the most deadly blood cancers that has seen few improvements in treatment in more than 40 years. 

Dr. DeGennaro has devoted his career to saving lives through drug discovery – first in academic research, later directing drug development at several pharmaceutical companies. At LLS he has found the perfect intersection of science and patient care, overseeing the funding of cutting-edge research, supporting patients and engaging in patient advocacy work. In addition to providing leadership and vision for his staff, he is committed to keeping a significant constituency of volunteers motivated and dedicated to the organization, which includes oversight over a breadth of national fundraising campaigns including the iconic Team In Training and Light The Night.

After receiving his doctorate in biochemistry from the University of California at San Francisco, Dr. DeGennaro did his post-doctoral research at the Yale University School of Medicine.  His previous academic appointments include research group leader, Max Planck Institute in Munich, Germany, where his laboratory was among the first to clone genes expressed exclusively in the nervous system; and associate professor of neurology and cell biology, University of Massachusetts Medical School.

Rob Beck

Rob Beck

Chief Operating Officer

As chief operating officer, Rob Beck is responsible for leading all of the organization’s operational initiatives including a new enterprise finance and expense management strategy aligned with LLS’s strategic and business plans. He works closely with the cross-functional senior leadership team, primarily to facilitate and accelerate strategic growth on LLS’s operating plan.

Beck joins LLS after 30 years at Citibank, where he held many positions, most recently chief operating officer (COO) of the U.S. Retail Bank, responsible for the retail branches and ATM distribution network, technology, M&A, product management and small business banking. Beck brings his proven record of operational and business development success to LLS, where his expertise in strategy, finance, M&A activities, retail branch and product management, technology transformation and productivity informs his work at LLS’s field led organization.

Beck has a M.B.A. in finance and international business from NYU Stern School of Business and a bachelor’s degree from Washington University, where he is a member of Washington University’s National Business Council.

Danielle Gee

Danielle Gee

Chief of Staff

As chief of staff, Danielle Gee is the program manager of the executive team responsible for guiding operational planning, strategic planning, priority initiatives and various enterprise projects. While she provides critical support to LLS President and CEO Louis J. DeGennaro, Ph.D., she also works closely with the cross-functional senior leadership team, primarily to assess progress on LLS’s operating plan. As part of this periodic evaluation, Gee has helped to develop key metrics and analytics, as well as a staff and Board of Directors dashboard and communication plan.

Prior to joining LLS, Gee was associate director of equities sales with UBS Investment Bank in New York City, where she managed relationships with current and prospective clients and provided analysis and research on stock valuations to drive incremental revenue. She previously was a consultant in public financial management, providing strategic consulting services and debt transaction analytical support for municipal clients.

Gee holds a bachelor’s degree from Princeton University and an M.B.A from Harvard Business School.

Kathy Griesenbeck

Kathy Griesenbeck

Chief Relationship Officer

As chief relationship officer, Kathy Griesenbeck oversees LLS’s 56 domestic chapters, ensuring financial growth, operational efficiency and management. Part of her oversight is the volunteer engagement initiative to ensure organizational aptitude through strategic volunteer principles.

Griesenbeck has extensive experience in nonprofit leadership and a track record of transformational success. Joining the organization in 2002 as executive director, she developed the San Antonio and Austin markets—moving them from $300,000 to $7 million. This was accomplished by partnering with the Board of Trustees and implementation of innovation in LLS campaigns. In 2013, she was promoted to region VP for the southwest and southeast where she worked with 18 chapters across 13 states to develop and implement strategic growth.

Griesenbeck has a bachelor’s degree from The University of Texas at Austin and master’s degree in communications from Our Lady of the Lake University.

Marcie Klein

Marcie Klein

Chief Communications Officer

Marcie Klein is responsible for overseeing the strategy and execution of the organization’s narrative, including public relations, internal communications and crisis and issues management, in order to create awareness for LLS and burnish its reputation. Her team provides support for LLS’s mission pillars of research, patient services and advocacy, as well as its fundraising campaigns and development initiatives, and generates owned content and earned media coverage to create awareness and engagement for LLS across a wide range of external and internal audiences and stakeholders. Klein collaborates with her colleagues on the executive leadership team to develop the enterprise strategic and operating plans, with an emphasis on reaching more patients and supporting revenue growth. Klein’s leadership and guidance of the communications function has led to significant growth in earned media awareness in her five-year tenure at LLS.

Klein brings more than 25 years of communications and public relations experience to her current role. Prior to joining LLS, she was senior vice president at Pollock Communications and senior vice president at Ogilvy Public Relations, with a focus on healthcare and consumer products and food sciences; prior, she was vice president of public relations and corporate communications at Combe Incorporated, a consumer products company.

Klein has a bachelor’s degree in English and Communications from Tulane University.

Rosemarie Loffredo

Rosemarie Loffredo

Chief Financial Officer

In her role as chief financial officer, Rosemarie Loffredo ensures that LLS achieves the ambitious financial goals of its long-range strategic plan. Loffredo leads the finance organization, risk management, legal and governance. She is responsible for enhancing LLS's financial efficiency and effectiveness in partnership with the organization's executive team.

Loffredo brings to LLS extensive experience in financial management, financial structuring and governance in banking, global corporations and most recently nonprofit segments.  Loffredo has spent most of her career outside the nonprofit segments holding leadership positions at global banks with industry segment management ranging from securities and commodities to capital-intensive industries.  In the nonbank corporate environment Loffredo served as senior vice president of finance for CA Technologies, Inc.,  vice president of treasury for the International Paper Company and international treasurer for MBNA. In the nonprofit segments Loffredo served as interim chief financial officer for Pro Mujer International, an organization dedicated to empowering disenfranchised women in Latin America through microfinance, healthcare and educational services; and was vice president, financial operations and treasurer of New York University, the largest private research university in the U.S.

Loffredo holds a bachelor's degree in foreign service from Georgetown University, a master's degree in economics from Boston College, and an M.B.A in finance and international business from Columbia University.

Gwen Nichols, MD

Gwen Nichols, MD

Chief Medical Officer

As LLS’s chief medical officer (CMO), Gwen Nichols, M.D., plays a critical role in advancing cures through a unique combination of clinical, academic and pharmaceutical experience. She oversees LLS’s scientific research portfolio, patient services and policy and advocacy initiatives. A physician and scientific researcher, she has dedicated her career to advancing cures for cancers.

Most recently, Dr. Nichols was oncology site head of the Roche Translational Clinical Research Center, where she worked to develop new cancer therapies, translating them from the laboratory to clinical trials. Prior to joining Roche in 2007, Dr. Nichols was at Columbia University for more than ten years, where she served as the director of the Hematologic Malignancies Program.

While at Columbia University, Dr. Nichols maintained an active clinical practice and received the prestigious honors of “Physician of the Year” from Columbia University and the “Humanism in Medicine Award” from the American Association of Medical Colleges.

Dr. Nichols trained in internal medicine at the University of Chicago and completed post-doctoral research and a hematology-oncology fellowship at Memorial Sloan-Kettering Cancer Center where she was an attending physician. She received her medical degree with honors from the State University of New York at Buffalo.

Tom Osgood

Tom Osgood

Chief Human Resources Officer

As chief human resources officer, Tom Osgood is responsible for the direction and management of all human resources functions across LLS. He leads multiple strategic initiatives, including organization development, change management, and enterprise-wide talent management and leadership development programs and processes. In addition, Osgood is responsible for driving the transformation of LLS’s culture, specifically in the areas of performance management and employee engagement.

Prior to joining LLS, Osgood was managing partner, K. Russo Consulting, Inc., where he provided strategic search and HR consulting services, with a focus on being a trusted adviser and business partner. His experience also includes chief human resources officer for Cannondale Sports Unlimited, a $1B bicycle and apparel company, with 2,100 worldwide employees, and prior to that was vice president of global human resources for Avon products, Inc.

Osgood earned his master’s degree in organizational development from Columbia University and his bachelor’s degree in management from Binghamton University.