West Middlesex University Hospital trust has appointed an interim chief executive following the resignation of Tara Donnelly.
Dame Jacqueline Docherty will join the trust on 23 February from King's College Hospital, where she was deputy chief executive and director of operations.
Her predecessor, Tara Donnelly, stood down on Monday after the trust failed to tell NHS London that eight patients waited more than 12 hours to be admitted to the accident and emergency unit.
Trust chairman Sue Ellen said: "I am very pleased to announce Jacqueline's appointment. The wealth of experience she brings with her will be invaluable to us."
Ms Docherty worked as a nurse at the Royal Free Hospital and Glasgow Royal Infirmary before being appointed deputy director of nursing at West Lothian trust.
She joined King's College Hospital as executive director of nursing in 1996, becoming director of operations in 2001. From May to November last year she was acting chief executive.
She has also been a member of the management executive at the Department of Health Scottish Office and an independent consultant to the Mexican Department of Health.
In 2004, she was made a Dame Commander of the British Empire for services to nursing and the NHS.
She said: "I am delighted to be joining the trust and look forward to working with the board and staff to deliver enhanced patient care and service delivery."