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About St. Charles

Our Leadership

Welcome to St. Charles Health System


Joseph Sluka, MBA
President and CEO of St. Charles Health System

Jeff Absalon, MD
Executive Vice President
Chief Physician Executive

Rebecca Berry, MBA
Vice President, Human Resources

John Bishop
President of St. Charles Prineville and St. Charles Madras

Jeremiah Brickhouse, MHA, MSTM
Senior Vice President
Chief Information Officer

Gary Bruce, JD, MBA
Vice President, General Counsel

Mary Dallas, MD
Chief Medical Information Officer

Jim Guyn, MD
Senior Vice President, Population Health

Nicole Hough, JD
Vice President, Compliance

Rod Marchiando, PharmD
Senior Vice President, Improvement and Strategy

John Nunes, MD
Senior Vice President
Chief Quality and Safety Officer

Travis Sewalls, MD
Vice President of Medical Affairs

Iman Simmons, MPH
Senior Vice President
Chief Operating Officer

Pam Steinke, RN, MSN, CPHQ
Senior Vice President of Quality
Chief Nurse Executive

John M. Weinsheim, MPA, FACMPE
President of St. Charles Medical Group

Jennifer Welander, CPA, MBA
Senior Vice President
Chief Financial Officer