
She spent two decades learning why healthcare resists change. With Millie, Anu Sharma is turning that education into clinics, software and partnerships that can move together.
Andy Slavitt ran Medicare. Now he runs a $1.4 billion fund arguing that the patients Wall Street ignores are where the money is - and the math, so far, agrees.
UnitedHealth Group has built a vast loop around American health care - paying claims, delivering care, managing prescriptions and supplying the data beneath it all. The same integration that gives it unusual reach also puts every friction point under a brighter light.

Samantha Walter is a Healthcare Partner on the Bio + Health team at Andreessen Horowitz (a16z), where she helps portfolio companies grow by building strategic partnerships across the care delivery ecosystem - payors, providers, employers, and retail. A University of Wisconsin-Madison finance graduate originally from Minneapolis, she brings deep operational credibility to the VC world: before joining a16z, she built a Direct Contracting Entity at Carelon (then CareMore/Aspire under Anthem/Elevance) in 2020, drove customer success at Quartet Health, and cut her teeth as a healthcare revenue cycle consultant at Huron Consulting Group in New York City. She lives and works in NYC, bridging Silicon Valley capital with real-world healthcare infrastructure.