WILMINGTON, Del., Oct. 5, 2026 — ChristianaCare has named Jennifer Czerwinski chief patient experience officer and Kate S. Keller, Esq., chief compliance officer. Jeff Kimble has been promoted to vice president of Laboratory and Pathology Services, and Ronica Chalmers has been promoted to director of Administrative Services for ChristianaCare HomeHealth.
Ronica Chalmers, director of Administrative Services, HomeHealth
Chalmers previously served as manager of Administrative Services, overseeing the HomeHealth Aide and Scheduling departments. In her expanded role, she continues to lead those areas and assumes responsibility for the Referral Services and Marketing departments.
Chalmers has served ChristianaCare for 34 years and brings extensive experience in clinical operations and healthcare management. She holds a bachelor’s degree in business administration from Wilmington University.
Jennifer Czerwinski, chief patient experience officer
Czerwinski was appointed chief patient experience officer after serving in the role on an interim basis since April.
She leads ChristianaCare’s enterprise approach to patient and family experience, partnering with clinical and operational leaders to translate patient feedback and experience data into improvements in care delivery. She oversees patient relations, volunteer services and pastoral services and helps ensure patient and family perspectives inform organizational priorities.
Czerwinski brings more than 20 years of healthcare experience, including more than 17 years with ChristianaCare. Before serving as interim chief patient experience officer, she was director of Patient Experience, leading the development and implementation of the organization’s patient and family experience strategy and numerous systemwide improvement initiatives.
She earned a bachelor’s degree in communication studies from the University of North Carolina at Greensboro.
Kate Keller, chief compliance officer
Keller leads ChristianaCare’s enterprise compliance program, partnering with leaders across the organization to strengthen ethical decision-making, proactively identify and address compliance risk, and integrate compliance considerations into organizational strategies and operations. Her leadership will help support safe, high-quality care and reinforce the trust of ChristianaCare’s patients, caregivers, partners and communities.
Keller brings extensive experience leading healthcare compliance, ethics and investigations. Most recently, she served as managing director of compliance at The Cigna Group, where she led the Ethics Office and enterprise compliance operations teams. She also directed the company’s “Speak Up” strategy and provided guidance on ethics, investigations and regulatory matters.
Previously, Keller served as deputy chief compliance officer for federal programs at The Cigna Group, overseeing compliance with federal healthcare program requirements and a corporate integrity agreement. She also held leadership roles in pharmacy benefit management compliance and served as supervising counsel in the company’s Ethics Office.
Earlier in her career, Keller served as director of the Medicaid Fraud Control Unit within the Delaware Department of Justice. In that role, she led Delaware’s Medicaid fraud prevention program and coordinated fraud, waste and abuse prevention efforts with state and federal agencies. She also previously served as a deputy attorney general in the Criminal Division.
Keller earned her law degree from Widener University Delaware Law School and a bachelor’s degree in criminal justice from the University of Delaware. She is admitted to practice law in Delaware and North Carolina.
Jeff Kimble, vice president of Laboratory and Pathology Services
Kimble previously served as director of Lab Operations at ChristianaCare’s Newark Campus for five years. In his expanded role, he provides strategic and operational leadership for laboratory and pathology services across the health system.
His responsibilities include strengthening operational performance, developing the workforce, optimizing technology and further integrating laboratory and pathology services. He also supports strategic growth, laboratory stewardship and partnerships with clinical leaders.
Kimble brings experience in laboratory operations and healthcare leadership, with a focus on quality, safety and caregiver engagement.
