Sussex moves from her role as the Chief Executive of digital identity services provider, OneID.

She has previously held high-profile roles as Chief Executive at the Student Loans Company and the Charity Commission. 

In accordance with Section 1 of the Parliamentary Commissioner Act 1967 and Section 1 of the Health Service Commissioners Act 1993, the appointment will be for a fixed term of five years, with the possibility of a two-year extension.

The PHSO makes final decisions on complaints that have not been resolved by the NHS in England and UK government departments and other UK public organisations.