Network Management Council
James M. Sanger
President/CEO
James M. Sanger began his duties as the President/CEO of SSM Health Care – St. Louis in November 2007. He oversees the mission, vision and strategic focus for an integrated health care network with 7 hospitals, 2,500 physicians, more than 11,200 employees and a net revenue base that exceeds $1 billion. Sanger also is a Regional President/System Vice President for SSM Health Care. More...
Steven P. Johnson
President/COO, Hospital Operations
Prior to becoming President/COO, Hospital Operations, Steve Johnson was president of the SSM Health Care - St. Louis North Operating Group. In his new role, he is a single point of contact for all SSM entities, helping the network operate as a single organization.
Robert G. Porter
President, Programs and Services/Chief Strategy Officer
Mr. Porter is responsible for developing the overall strategy for SSM Health Care-St. Louis, and individual service lines across the network. He also oversees the SSM Physicians' Organization and ambulatory services. More...
Debbie Walkenhorst
Regional VP, Human Resources
As regional vice president of human resources, Debbie Walkenhorst provides strategic direction in aligning talent to organizational needs. More...
Kevin Johnson, M.D.
Regional VP, Medical Affairs/Chief Medical Officer
As regional vice president-medical affairs/Chief Medical Officer, Dr. Johnson oversees the strategic development, direction and management support provided to the health care network's seven St. Louis hospitals and the SSM Physicians' Organization in the areas of clinical quality performance, patient safety, risk management, regulatory compliance and clinical resource management.
Karen Rewerts
Regional VP, Finance/CFO Karen Rewerts serves as the SSM Health Care – St. Louis network’s vice president of finance and as its chief financial officer. She oversees the network’s financial functions, including accounting, finance and patient financial services. More...
Lynn Lenker
Chief Nursing Executive
Nurse Champion, Project Beacon
As Chief Nursing Executive, Lenker has championed the Relationship Based Care program designed to return the nurse’s focus to the bedside and the patient by working as teams to deliver the care and outcomes all patients deserve. More...
Hospital/Service Line Leadership
Sherlyn Hailstone
President, SSM Cardinal Glennon Children's Medical Center
Service Line Executive for Pediatrics and Maternal Services
Gaspare Calvaruso
President, SSM St. Joseph Health Center, St. Charles,
SSM St. Joseph Medical Park and
SSM St. Joseph Health Center-Wentzville
Service Line Executive for Oncology Services
Drew Rector
President, SSM St. Joseph Hospital West
Service Line Executive for Orthopedic Services
Patrice Komoroski, Ph.D.
President, SSM DePaul Health Center
Service Line Executive for Behavioral Health Services
Sherry Hausmann
President, SSM St. Clare Health Center
Service Line Executive for Neuroscience Services
William Jennings
President, SSM St. Mary's Health Center
Service Line Executive for Heart and Vascular Services
Sean Hogan
President, Ambulatory Services
Sean Hogan's responsibilities include outpatient imaging, ambulatory surgery centers, endoscopy centers, sleep centers, joint ventures and other ambulatory partnerships. This position reports to the Chief Strategy Officer.
Medical Group Leadership
Mark Renken
Regional Executive Director/Chief Administrative Officer, SSM Physicians’ Organization
John T. AvantsExecutive Director, SSM St. Charles Clinic Medical Group
Rachel Dietz
Executive Director, SSM DePaul Medical Group
Jim E. Bieser
Executive Director, SSM Medical Group