Home Secretary Theresa May is to meet the chief executive of NHS Berkshire to seek answers over the possible scrapping of services at St Mark's Hospital in Maidenhead.
The town's MP will discuss the possible changes with Charles Waddicor at a meeting expected to take place next month.
The move comes after the Advertiser revealed two weeks ago that some services could be pulled from St Mark's Hospital and excess land sold off.
A 'Hands off our Hospital' campaign has been launched by the Advertiser to ward off any cuts to services at the site.
Mrs May said: "NHS Berkshire need to understand that maintaining services at St Mark's is of vital importance and I would like some urgent reassurances that this process will not undermine services in Maidenhead."
The proposals are part of the Shaping the Future consultation, being run jointly by all the NHS trusts in the area.
It will look at the provision of services at all hospitals, including St Mark's Hospital, Heatherwood Hospital in Ascot and King Edward VII Outpatients in Windsor.
Discussions are taking place around a potential 'hub' for outpatient services but a location has not been confirmed.
A public consultation is due to start in early autumn.
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