The new regulations will require care homes to provide clear information on terms and conditions, including fees, before a resident moves in. This will help families choosing a care home on behalf of a loved one when they are frail or vulnerable.
Homes will also be asked to provide transparent information on the timing of and reasons for any increases in fees.
Speaking at the Quality Care for Older People conference, Mr Lewis said: 'Moving into a good quality care home is a positive option for many people. But choosing to move can be a trying time for a family so it is imperative that people have as much information as possible to help make a decision.
'We expect to know how much our groceries cost - we should be able to demand the same service for something as fundamental to a person's quality of life as what they can expect from their care home. I am pleased we have implemented the OFT's suggestions.'
This work demonstrates the government's commitment to improving the range of social care services provided locally and to drive up standards.
* The new regulations on providing transparent care home pricing information will be available here tomorrow.