In 2000 as the SUMR program was launched, Penn Medicine Professor Katrina Armstrong stepped in to be one of the three first mentors for SUMR Scholars. She worked with Tamar Mirensky, a Penn junior majoring in engineering who was interested in learning more about a health care career. After SUMR Mirensky went on to get her MD and became a researcher and Professor of Pediatric Surgery at Mount Sinai Hospital in New York. 

Armstrong, the former Penn Medicine Chief of the Division of General Internal Medicine, is now the Physician-in-Chief at Massachusetts General Hospital.