Cancer Center Leadership
Director
Gustavo Leone, PhD.
Dr. Leone received his Bachelor of Science degree in biochemistry from the University of Calgary (Calgary, Canada)in 1988 and his PhD in virology from the University of Calgary in 1994. During his time as a postdoctoral fellow at the Duke University Medical Center, Dr. Leone received the Robert M. and Barbara R. Bell Basic Science of Cancer award for his outstanding research discoveries.
Throughout his career, Dr. Leone has focused his research on identifying how disruption of critical cell cycle regulatory pathways contributes to uncontrolled cell growth – a hallmark of cancer – as well as cell-to-cell communication. His work has been continuously funded by the National Institutes of Health (NIH) since 1999, including almost $3 million in current NIH funding.
Dr. Leone has been a member of and served on the boards of various national and international societies, including the American Association of Cancer Research, scientific advisory board for the Ludwig Boltzmann Institute, and co-chair of the 1st Great Lakes Breast Cancer Symposium and Second Great Lakes Breast Cancer Symposium.
Helping to direct the science at the MCWCC are seven Associate Directors (the Directors' Council), an Executive Committee, thirteen Faculty Research Committees that focus on disease-specific clinical research and external, internal, philanthropic leadership and community advisory boards. This structure effectively promotes collaborative scientific interactions within the institution, with external partners and throughout the community.
Three times a year, the Director is host to an event and publishes a newsletter titled Cancer Collaborative to recognize and appreciate the work of MCW Cancer Center faculty, staff and partners.
Cancer Collaborative Newsletter
Associate Directors

Chair and Professor, Pharmacology & Toxicology
Tina Curtis, DNP, MBA, RN, NEA-BC
Vice President, Cancer Services
Froedtert Hospital
Douglas B. Evans, MD
Donald C. Ausman Family Foundation Professor of Surgery
Chair, Surgery
J. Douglas Rizzo, MD, MS
Associate Director of Clinical Operations
Senior Scientific Director, CIBMTR
Professor, Medicine/Hematology and Oncology
Project Director Stem Cell Therapeutic Outcomes Database
Hallgeir Rui, MD, PhD*
Associate Director of Basic Sciences and Shared Resources
WBCS Endowed Professor of Basic Breast Cancer Research
Professor, Pathology
Christopher J. Schultz, MD, FACR, FASTRO
Chair and Professor, Radiation Oncology
Mary M. Horowitz, MD *
Robert A. Uihlein, Jr. Chair in Hematologic Research
Professor, Medicine
Deputy Director, MCW Cancer Center
Marilyn Larson, MBA*
Associate Director of Administration
Ravindra P. Misra, PhD
Director of Campus Research Resources
Dean, Graduate School
Professor, Biochemistry
Marja Nevalainen, MD, PhD*
Associate Director of Cancer Training and Education
Professor, Pathology
Janet S. Rader, MD
Jack A. & Elaine D. Klieger Professor of Obstetrics and Gynecology
Chair and Professor, Gynecology
Roy L. Silverstein, MD*
Associate Director of Clinical Research
John and Linda Mellowes Professor and Chair
Chair and Professor, Medicine
Senior Investigator, Versiti Blood Research Institute
Melinda Stolley, PhD*
Associate Director of Population Health
Professor, Medicine
James P. Thomas, MD, PhD*
Associate Director of Translational Research
Professor, Medicine/Hematology and Oncology
Section Head, Solid Tumor Oncology
Ben George, MD
William F. Stapp Endowed Chair
Medical Director, Clinical Trials Office
*Member of Directors' Council