Staff, care providers, residents and their families and other stakeholders are being urged to take part.
A decision is expected to be made this summer.
According to experts from the Scientific Advisory Group for Emergencies (Sage), 80% of staff and 90% of residents need to be vaccinated to provide a minimum level of protection against Covid-19 outbreaks.
The DHSC said nearly half of care homes for older residents in England are not meeting this threshold.
The Government is urging all care home workers to take up a jab now to keep themselves and residents safe.