A coalition of 29 major health care players is coming together to simplify the prior authorization process for medical treatments, Mehmet Oz, the administrator of the Centers for Medicare and Medicaid Services, said at Axios' Future of Health Summit Wednesday. The big picture: Last summer, several top health insurers voluntary pledged to streamline and improve the prior authorization process across all health insurance markets. Driving the news: "The payers, the insurance companies, have been