Leadership team

Kelly Spratt

Kelly Spratt


  • Length of service at Buffalo Hospital: Since March 2019
  • Education: MS degree, Health and Human Services Administration, Saint Mary's University; BS degree, management, Cardinal Stritch University, Milwaukee.

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Benjamin Robeck

chief nursing officer; director of patient care and quality

  • Length of service at Buffalo Hospital: April 2020
  • Previous experience: Mercy Hospital, Patient Care Director of Emergency, Trauma Services and Critical Care; US navy; firefighter/EMT; flight RN with Life Link III.
  • Education: BS in Nursing, St. Catherine University; BA in Athletic Training/Health Education, St. Cloud State University. MS, Nursing Leadership at Minnesota State University

Joshua Shepherd

director of operations

Education: Bachelor's degree in psychology from the University of Minnesota and master's degree in healthcare administration from the Carlson School of Management at the University of Minnesota. He is a Fellow in the American College of Healthcare Executives.


Robert Mullaney, MD

director of medical affairs

  • Length of service at Buffalo Hospital: Since July 2017.

Kristin Denne

director of human resources

  • Length of service at Buffalo Hospital: February 2018
  • Previous experience: Joined Allina Health in 2013 as a senior human resources generalist for the Allina Health Group. 
  • Education: MBA from Concordia University; Bachelor’s degree, management with human resources concentration, St. Cloud State University. 
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Sandie Matrella

director of finance

  • Length of service at Buffalo Hospital: Since 2014, first as finance manager and now finance director
  • Previous experience: 21 years at Mercy and Unity hospitals, starting as a cost analyst and eventually becoming finance manager
  • Education: BS degree, Finance, Michigan Technological University
Ashley Andersen

Ashley Andersen

foundation senior development associate

  • Length of service at Buffalo Hospital: Since July 2017
  • Previous experience: Event planner and development associate for Feed My Starving Children
  • Education: BA degree, Cultural Studies, Roehampton University, London, UK