MCW Cancer Center Leadership
The MCW Cancer Center’s leadership team includes scientists, researchers, and administrators who provide strategic and operational oversight to shape our strategy, guide our programs and initiatives, and inspire our people.
Gustavo Leone, PhD
Director
Dr. Leone joined the MCW Cancer Center in April 2020. As a leader and scientist in the cancer community, Dr. Leone has nearly 30 years of research experience and more than 10 years of leadership experience, including former appointments as the Director of the NCI-designated Hollings Cancer Center at the Medical University of South Carolina as well as Director, Solid Tumor Biology Program, at the Ohio State University Comprehensive Cancer Center.
In addition to leading the MCW Cancer Center, Dr. Leone is MCW’s senior associate dean of cancer research and professor with tenure in the department of biochemistry. He holds the Dr. Glenn R. and Nancy A. Linnerson Endowed Chair for Cancer Research and oversees clinical operations at the Froedtert & the Medical College of Wisconsin Cancer Network.
Mary M. Horowitz, MD, MS
Deputy Director
Dr. Horowitz joined the MCW Cancer Center in 2021. Dr. Horowitz holds the Robert A. Uihlein Professorship for Hematologic Research at MCW and serves as chief scientific director emeritus of the Center for International Blood and Marrow Transplant Research, of which she is a founding member.
Dr. Horowitz’s clinical and research activities focus on the care and outcome of persons receiving blood and marrow transplants and in evaluating the role of transplantation in malignant and non-malignant diseases. She is particularly interested in understanding, treating and preventing long term complications of transplantation such as chronic GVHD (graft versus host disease).
Leadership Team
Associate Directors
Marilyn Larson, MBA
Associate Director, Administration
Charles Rogers, PhD, MPH, MS, MCHES
Associate Director, Community Outreach & Engagement
