Executive Leadership

Meet our Dignity Health Southern California team.

 

Julie Sprengel

Senior Vice President of Operations, Commonspirit Health Southwest Division

Julie Sprengel

Julie Sprengel, MBA, RN, oversees Commonspirit Health's Southwest Division service area operations, including six acute care facilities: California Hospital Medical Center, Community Hospital of San Bernardino, Glendale Memorial Hospital and Health Center, Northridge Hospital Medical Center, St. Bernardine Medical Center, and St. Mary Medical Center in Long Beach.

Her health care management background includes experience in operations, strategic planning, financial analysis, and clinical integration. She holds a nursing degree from LAC+USC School of Nursing, a BA management and an MBA from Pepperdine University.

 


Robert M. Bonner

Chief Financial Officer

Robert M. Bonner

Robert Bonner is the Chief Financial Officer for Dignity Health’s Southern California Service Area. A seasoned, strategic, financial leader for multiple, large hospital systems, Robert oversees the financial performance of the six Southern California hospitals.

Robert holds an MBA from California State University San Bernardino and a BA in Finance and Management from the University of Oregon.

 

 


Linda McDonald

Vice President, Mission Services

Linda McDonald

Linda McDonald has served as a mission leader within the organization since 1989. One of Dignity Health’s first lay mission leaders, Linda brings her social work skills and dedicated faith to her mission work of presence and operational excellence in spiritual care, ethics, palliative care, community health and auxiliary services. She looks to build a mission integration focus into the existing foundation of the six SoCal hospitals.

Linda received her Masters of Social Work at USC. Her training included macro social work, focusing on program planning and community health as well as clinical social work.

 


Sue Pietrafeso

Chief Strategy Officer. Commonspirit Health Southwest Division

Sue Pietrafeso

Sue is responsible for strategies to build the Commonspirit Health brand, increase revenue for our hospitals, and strengthen our relationships with physicians and payors. She oversees our Strategy, Business Development, Marketing, Communications, and Sales teams.

 

 

 


Nicholas Testa

Chief Physician Executive, Commonspirit Health Southwest Division

Nicholas Testa

As chief physician executive, Nicholas Testa, MD, is focused on quality and patient safety and physician engagement at the six hospitals in the Commonspirit Health Southern California service area.

Dr. Testa is a board-certified emergency medicine physician with extensive leadership and administrative experience. Dr. Testa completed his emergency medicine residency training at LAC+USC Medical Center and his transitional internship at Harbor-UCLA Medical Center. Originally from New York City, Dr. Testa earned his medical degree at New York Medical College and attended Middlebury College for his undergraduate training.

 

 


Katherine Wargnier

Vice President, Human Resources, Commonspirit Health Southwest Division

Katherine Wargnier

As Vice President of Human Resources for Commonspirit Health Southwest Division service area, Katherine Wargnier oversees recruitment, benefits, labor relations and human resource services for more than 9,000 hospital employees.

Ms. Wargnier has a Bachelor’s of Science in Health Sciences from California State University, Northridge, as well as an MBA from Pepperdine University and a Professional TQM Certification from the UCLA Anderson School of Business Extension Program.