A long-awaited rule, finalized Thursday, significantly improves how insurers and providers resolve disputes over out-of-network bills. But payers say it’s not enough to curb alleged provider abuse.

The skin provides a remarkably good barrier against bacterial infections. Although many bacteria come into contact with or reside on the skin, they typically do not cause an infection. When …

Massachusetts Attorney General Andrea Joy Campbell is suing UnitedHealthcare, alleging that the insurance giant “manipulated the health status” of Medicaid members to secure higher payments. Campbell’s office said the insurer’s …