Mr Mowat, the MP for Warrington South, in Merseyside, has taken responsibility for all aspects of primary care as well as adult social care and community services.
The former PPS to the communities secretary was appointed by Theresa May as part of a new team of junior ministers after she became prime minister in July this year.
Mr Mowat will speak on the second day of the conference, which runs from 6-8 October 2016.
He will join a list of respected figures from the world of medicine and the NHS in addressing up to 1,600 delegates over the three-day event.
The full list of plenary speakers includes:
Dr Arvind Madan Director of Primary Care for NHS England and London GP
Professor Maureen Baker Chair of the RCGP
Professor David Haslam Chair of NICE and former GP
Dr Matt Kearney National Director of CVD Prevention NHS England and GP
Kate Allatt Inspirational survivor of locked-in syndrome
Sir Sam Everington GP chair of Tower Hamlets CCG in East London
Professor Jonathan Shepherd Professor of Oral and Maxillofacial Surgery and Director of the Violence Research Group at Cardiff University
For full details of the latest programme for the RCGP Annual Conference visit: www.rcgpac.org.uk