David Prior is to be the new chair of the Care Quality Commission.
David is currently Chairman of the Norfolk and Norwich University Hospitals NHS Foundation Trust.
"I am delighted to have been appointed Chairman of the Care Quality Commission (CQC). It is the only job that could have persuaded me to leave the Norfolk and Norwich University Hospital."
The James Paget Hospital in Norfolk has received its third official warning about the standard of care within the last year.
The Care Quality Commission's raised concerns about how well the trust was assessing the needs of patients.
The CQC also said the trust wasn't doing enough to make sure patients are receiving appropriate treatment. The James Paget has until the end of May to improve.
Cathryn Barmham, from the Care Quality Commission, said: "There are a number of actions we can take in respect of enforcement but the trust are making improvements and they are realising the significance of the concerns they have and as you are aware there have been personnel changed recently."