Alwen Williams, chief executive, Tower Hamlets PCT

Seen as one of the most dynamic primary care trust chief executives, Williams’ organisation is known for its impressive work on addressing health inequalities and out of hours access. She is one of just 10 people and the only PCT chief executive on the recently launched national primary and community care advisory group.

Ms Williams is also senior responsible officer for a Healthcare for London diabetes project and a board member of the NHS Institute, with responsibility for improving the patient experience. Tower Hamlets is also the lead PCT for specialised commissioning in north east London and Ms Williams chairs the relevant group. She was formerly chief executive of Bexley care trust.