Plans are being drawn up that could see cuts to NHS services across England.
The BBC has seen draft sustainability and transformation plans (STPs) which propose ward closures, cuts in bed numbers and changes to A&E and GP care in 44 areas.
There have been no consultations on the plans so far.
NHS England, which needs to find £22bn in efficiency savings by 2020-21, said reorganising local services is essential to improve patient care.
You can also find NHS Englands response to the new plans here.