Highmark Inc. and HeathNow New York, the parent company of BlueCross BlueShield of Western New York and BlueShield of Northeastern New York, last week announced...

...their intention to combine. While the move is officially being referred to as an "affiliation agreement," HealthNow's products will take on Highmark's branding, making Highmark the primary Blue Cross and Blue Shield affiliate in HealthNow's service areas. Financial terms of the deal, which still must meet regulatory approval, were not disclosed Combined, the new entity will enroll 4,754,010 members nationwide.

From AIS’s Directory of Health Plans