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Our Leadership


Sharon JaksaSharon Jaksa

Central Division Vice President

Sharon Jaksa more than 28 years of experience with the American Red Cross, serving in various capacities as: medical technologist, laboratory processing coordinator, senior technologist, assistant director of technical services, director of technical services, director of manufacturing, chief operating officer and CEO of the Great Lakes Region. In 2012 she was promoted to division vice president of the Great Lakes Division. In November 2013 she was appointed vice president of the Central Division which includes 15 Blood Services Regions and seven shared management teams. She resides in Michigan and holds a Master of Administration degree from Central Michigan University. She is also an adjunct professor for Michigan State University, teaching in the Masters Program for Laboratory Operations.

Greg NovinskaGreg Novinska

Chief Executive Officer

Greg Novinska is the CEO of the Badger-Hawkeye and Heart of America Blood Services Regions. Novinska has been with the Red Cross for more than 15 years. Prior to working for the Red Cross, he was a member of the surgical staff in area hospitals, which gives him a unique perspective on how important the work of the Red Cross is to hospitals partners and patients they serve.

John Weiss, M.D., Ph.D.John Weiss, M.D., Ph.D.

Medical Director Badger-Hawkeye Region

Dr. Weiss has an M.D. and a Ph.D. in Oncology and is board certified in Anatomic and Clinical Pathology. He has more than 30 years of experience in blood banking and pathology. He serves as medical director of the Badger-Hawkeye Region, providing medical oversight of the Region's component and the reference labs, as well as medical management of donor health issues. In addition, Dr. Weiss is the associate medical director of Transfusion Service at the University of Wisconsin Hospital and Clinics. He is an assistant clinical professor in the Department of Pathology and Laboratory Medicine at the University of Wisconsin School of Medicine and Public Health. Dr. Weiss has also published a number of papers on blood banking and pathology topics.