For decades, MHN sat between an insurance card and a therapist's door. Then Health Net moved much of the machinery under its own name - a case study in what happens when a useful company becomes infrastructure.
Steven Sell is a healthcare operator who spent five years as CEO of agilon health, the Westerville, Ohio company that backs independent primary care physicians taking full risk on Medicare patients. He stepped down on August 4, 2025. Before agilon, he ran Health Net, a $14 billion business with three million members.