Highmark Life Insurance is a subsidiary of Regence BlueCross BlueShield of Oregon, which serves nearly 1 million members in Oregon and Clark County, Washington. The company has more than 10,425 physicians and providers in its networks. Regence BlueCross BlueShield of Oregon is a part of The Regence Group, one of the Pacific Northwest s largest affiliations of health care plans, which includes Regence BlueCross BlueShield of Oregon, Regence BlueShield, Regence BlueShield of Idaho and Regence BlueCross BlueShield of Utah. Collectively, the four plans serve more than 3 million people in four states with more than $4 billion in combined annual revenue. Highmark Life Insurance is headquartered in East Hartford, Conn.