A managed care company is changing the name of the unit that oversees many of its operations.

UnitedHealth Group Inc., Minnetonka, Minn., is rebranding the old Specialized Care Services business as OptumHealth.

OptumHealth is responsible for many different UnitedHealth specialty health and ancillary benefits companies, including ACN Group, Dental Benefit Providers, National Benefit Resources, Optum, Spectera, Unimerica Workplace Benefits, United Behavioral Health and United Resource Networks.

OptumHealth generates about $4 billion in annual revenue, UnitedHealth reports.