Optum

UnitedHealth Group buys majority stake in Audax Health

By Jonah Comstock | 01:31 pm | February 19, 2014

Aetna, Optum talk ACOs and provider partnerships

By Jonah Comstock | 01:55 pm | November 06, 2013

HIPAA-compliant social network startup Audax Health raises $21M, partners with Cigna

By Jonah Comstock | 11:49 am | January 21, 2013