Katie Davis, managing director for the Department of Health's (DH) NHS Informatics division, will be stepping down from her position in the near future to focus on being a full-time mum to her two children.
Davis crossed over to NHS Informatics from the Cabinet Office in July 2011, where she was the executive director of operational excellence for the Efficiency and Reform Group (ERG), prior to which she held a three year post at the Home Office on the member of identity and passport service management board.
Within DH, Davis played a key role in the launch of the eagerly-anticipated NHS Information Strategy, which was released earlier this year.
"I could not be more pleased with what we - as a team - have accomplished in the last year. We have made tremendous strides in moving towards a future where information and IT support the delivery of better patient care," said Davis.
She added: "I am very confident that we have the right future strategy, and the right people to deliver it. While I will miss everyone very much, it is the right time for me to move on so the future system we have designed can begin to work in the way in which we have designed it."
Tim Kelsey will take on Davis' responsibility in his new role as the national director for patients and information in the NHS Commissioning Board. To ensure an effective handover, Davis will support Kelsey for the short term.
Chief executive of the NHS, David Nicholson, expressed his gratitude to Davis by saying that she "made great strides in developing a strategy for the delivery of information and IT support to the future of health and care services".
Health Secretary Andrew Lansley published the Information Strategy in May, which detailed plans to make patient data available online by 2015.
He hopes that by creating an information system built on integrated solutions, within a framework of national standards that allows information to move freely and securely around the healthcare system, professional teams will be able to prioritise more face-to-face support.
Electronic access to the public's own care records will start with GP records by 2015 and will extend to social care records "as soon as IT systems allow", according to a report that was released at the time.