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Our Leadership

Greater Ozarks-Arkansas

Sharon JaksaSharon Jaksa

Vice President, Central Blood Services Division

Sharon Jaksa has more than 28 years of American Red Cross experience serving in various roles including: medical technologist, laboratory processing coordinator, senior technologist, assistant director of Technical Services, director of Manufacturing, chief operating officer and CEO of the Great Lakes Blood Services Region. In 2012, she was promoted to the Great Lakes Blood Services Division vice president role. In November 2013, she was appointed as the vice president of the Central Blood Services Division, including 15 blood services regions and seven shared management teams. She resides in Michigan and holds a master’s in administration from Central Michigan University. She is also an adjunct professor for Michigan State University, teaching in the Master’s Program for Laboratory Operations.

Scott L. CaswellScott L. Caswell

Chief Executive Officer, Greater Ozarks-Arkansas and Missouri-Illinois Blood Services Regions

Scott Caswell is the CEO of the Greater Ozarks-Arkansas and Missouri-Illinois Blood Services Regions. Caswell, has more than 20 years of valuable blood banking leadership experience. He previously served the Red Cross as CEO of the Central Plains Blood Services Region, located in Wichita, Kansas. Caswell holds a Bachelor of Arts in political science and a master’s in business administration.

John Theus, M.D.

Medical Director, Greater Ozarks-Arkansas and Missouri-Illinois Blood Services Regions

Dr. John Theus is a graduate of the University of Arkansas for Medical Sciences and serves as both associate professor and vice chair of clinical affairs in the pathology department of his alma mater. He is board-certified in clinical pathology and transfusion medicine. Additionally, he is a member of the Arkansas Medical Society, American Society for Apheresis, American Society for Clinical Pathology, College of American Pathologists, AABB, International Society for Cellular Therapy and the American Medical Association. Theus has also published a variety of articles on various medical topics.

Gina Pesek, M.D.

Assistant Medical Director Greater Ozarks-Arkansas Blood Services Region

Dr. Gina Pesek is the assistant medical director of the Greater Ozarks-Arkansas Blood Services Region. She is a graduate of the University of Arkansas for Medical Sciences and serves as both assistant professor and medical director of transfusion services at her alma mater. Additionally, Pesek is the blood bank medical director of the Arkansas Children’s Hospital, and is board certified in clinical pathology and transfusion medicine. She is a member of AABB, College of American Pathologists and American Society for Apheresis.

Beverly Nix Beverly Nix

Board chair, Greater Ozarks Blood Services Region

Beverly Nix is the CEO of SHARP, a physician hospital organization affiliated with St. Bernards Healthcare located in Jonesboro, Arkansas. She received her bachelor’s degree in accounting from Arkansas State University and has her master’s degree in healthcare administration.