Dame Gill chaired Gloucestershire ICS from 2019 to September 2026, was director of public health for Leicestershire, chief executive of North and East Devon Health Authority and chief executive of the NHS Confederation. She also held the position of permanent secretary to the Welsh Government between 2008 and 2012. She has been chair of NHS Providers between 2014-2019 and also chaired the Alzheimer's Society. She is a past president of the International Hospital Federation.

In her new role, she will provide visible, independent non‑executive leadership across the region, working with regional directors to develop a coherent strategy to deliver against the 10-Year Health Plan.

Dame Gill will work with provider and ICB chairs to deliver against that strategy and ensure high-performing boards, and work with the regional executive team to support improvement and intervention.

She said: 'Having moved to the South West more than 25 years ago, I am very committed to the NHS in this region, so I am really pleased to be taking on this role. Over the years in various roles I have visited every organisation and seen first-hand the commitment, innovation and deep community connections of the people who work here.

'I look forward to working with chairs, leaders and partners across the region to continue developing our unique and special ways of working.'

NHS England chair, Dr Penny Dash, said: 'I'm delighted we have been able to attract a high-calibre group to take on these roles, each bringing the experience, independence and commitment to public service needed to support chairs, systems and regional teams at a time of significant change and opportunity.

'I look forward to working with my new colleagues as we continue to deliver the reforms set out in the 10-Year Health Plan and improve services and outcomes for patients and communities.'

Dame Gill will take up post on 1 April for an initial three‑year term, working part‑time in line with the non‑executive nature of the role.