Chair, NHS Future Forum (2010 ranking: 21)

Over the past year Professor Field has enjoyed open door access to Number 10 and the highest echelons of the DH, helping to address myriad concerns about the NHS reforms as confidence in the plans crumbled. His placing looks low at number 35, reflecting the fact that the Future Forum’s main work is done. But do not be fooled, he remains a highly influential figure. Professor Field is happy to speak hard truths about GP performance with the authority that comes from being a past president of the Royal College of GPs and, with a deep interest in public health, a national-level clinical job could beckon.