Health and adult social care providers will be obliged to display ratings from the Care Quality Commission (CQC) on their websites and at their registered locations.
The CQC has launched a consultation on draft guidelines as result of a proposed amendment in parliament, with the requirement due to come into force in April.
The CQC conducted its first inspections of private hospitals in October 2014, beginning with Spire Southampton Hospital and the London Welbeck Hospital.
Currently the CQC provides ratings of outstanding, good, requires improvement or inadequate.
There is also a consultation on changes to the fundamental standards, those below which care should never fall, and requirements for providers and managers to be considered fit for the sector.
David Behan, chief executive at the Care Quality Commission, said:"Our role as the regulator is making sure people have access to health and care services that are safe, caring, effective, responsive and well-led - it's what everyone should expect and deserves.
"Following an inspection we publish our report and rating on our website. In the future there is a new requirement for all providers to display their rating. This will provide even greater transparency in helping people to make more informed choices about their care, either for themselves or their loved ones.
