Optum – the parent of major ambulatory surgery center (ASC) chain SCA Health – continues to play an important role at health care giant UnitedHealth Group (NYSE: UNH). Not too long ago, Optum played a complementary role under the broader UnitedHealth Group umbrella. Now, however, Optum is taking center stage, with the health care services arm serving as UnitedHealth Group’s leading revenue generator. “In the first half of the year, revenues grew by nearly $14 billion, with strong … [Read more...]