For years, the true price of health care in the US has been the result of negotiations between providers, insurance companies and government agencies. But for the patients, companies and taxpayers who pick up the tab, it's often been a mystery. That's led to hospital pricing that’s all over the map.

In today’s episode of the Big Take podcast, Bloomberg reporter John Tozzi explains how patients at almost half of US hospitals can find significantly less expensive competitors within 30 miles. And we hear from Jen Villa, a special education teacher from Salinas, California, who has felt the impact of those pricing disparities firsthand.