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Lois Quam
24. Lois Quam
CEO, Ovations, UnitedHealth Group (UNH)
2005 rank: 36
Age: 45
Charges of backdating options and a slumping stock have made for a tough year at UnitedHealth. Still, one of every five Medicare beneficiaries is a client of Ovations, the nation's largest provider of health services to the over-50 crowd. Thanks to growth and a big acquisition, revenues are expected to jump from $9.4 billion to more than $25 billion this year.
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