Genworth Financial Inc. has agreed to buy National Eldercare Referral Systems Inc. for $12.5 million.

National Eldercare, Wellesley, Mass., which does business as CareScout, runs services that can help families find and evaluate nursing homes, assisted living facilities and home care agencies.

The long term care insurance business at Genworth, Richmond, Va., has been a CareScout client for the past 10 years, Genworth says.