The same steep growth and use of big data that attracted venture capital cash to firms that administer Medicare Advantage plans have led to scrutiny of the firms by government officials. Federal audits estimate such plans nationwide have overcharged taxpayers nearly $10 billion annually.

The same steep growth and use of big data that attracted venture capital cash to firms that administer Medicare Advantage plans have led to scrutiny of the firms by government officials. Federal audits estimate such plans nationwide have overcharged taxpayers nearly $10 billion annually.