The plan to investigate the private health-insurance companies that run Medicare Advantage has been drastically expanded.

The Administrator for the Centers for Medicare & Medicaid Services (CMS), Dr. Mehmet Oz, spoke to non-profit health system executives, investors, ...

Dr. Mehmet Oz is being derided by social media users online after encouraging parents to feed their children "real food" in order to boost health and immunity during a televised interview.