34 of 50
34. Gail Boudreaux
President, UnitedHealthcare; EVP UnitedHealth Group
UnitedHealth Group (UNH)
2009 rank: 38
Age: 50

Her business suffered a 2% revenue drop to $40.8 billion as job losses led to fewer individuals with health insurance benefits. But her reach is vast, with a group that serves more than half of the Fortune 100 and nearly 25 million individuals.

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Last updated September 30 2010: 2:47 PM ET
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