Denny Sanford, 1935-2026
Sanford Health honors the life and legacy of lead philanthropist Denny Sanford. Learn about his impact.
Member Directory
Michael Keppen, MD, is an oncologist and hematologist at Sanford Health in Sioux Falls, South Dakota, director of the Sanford Lung Tumor Program and a clinical professor at the Sanford USD School of Medicine
Dr. Keely Hack is an oncologist and hematologist at the Sanford Cancer Center in Sioux Falls, South Dakota.
Dr. Noe Mateo specialized in infectious diseases, chronic infections, advanced wound care and travel medicine at Sanford Health.
Tiffany Krogstad is a Willmar, Minnesota, native and currently a dietitian at Sanford Cardiology Institute. She has over nine years of experience as a dietitian working with athletes and wellness members, and also has inpatient and outpatient experience. She received her bachelor’s degree in nutrition and dietetics and exercise science from Concordia College in Moorhead, Minnesota.
Jared Leighton is the corporate historian for Sanford Health and also works on the corporate communications team. He holds a Ph.D. in history from the University of Nebraska-Lincoln. You can reach him at jared.leighton@sanfordhealth.org.
Kay Todd started writing for her local newspaper at just 15 and pursued a career in journalism before joining Sanford Health in 2016. Now a senior communications specialist for the Sanford Health Foundation, Kay enjoys telling the stories of our patients and philanthropic supporters. You can reach her at (605) 312-6733 or kay.todd@sanfordhealth.org.
Dr. Christopher Sumey is an oncologist and hematologist at the Sanford Cancer Center in Sioux Falls, South Dakota.
