Executive Team

Tammy Lett joined St. Luke’s in October 2023 as the senior vice president of St. Luke’s Physician Network. In a dyad with chief medical officer Darren Haskell, MD, Tammy leads all aspects of St. Luke’s Medical Group.

Tammy brings 30 years of experience in healthcare, most recently serving as chief operating officer, physician enterprise, at Hospital Sisters Health System in Illinois. In that role, she was responsible for leading over 130 practice locations and 550 providers. Prior to Hospital Sisters Health System, she held medical leadership positions at St. Anthony’s Memorial Hospital in Illinois.

Tammy holds a Master of Business Healthcare Administration from Regis University and a bachelor of science in Organizational Leadership from Greenville College. She is also a registered nurse and has previously served as a Chief Nursing Officer.