The podcast Arm And A Leg recently had an episode [0] which explains this practice of receiving surprise bills from unknown providers. The short version is that

The podcast Arm And A Leg recently had an episode [0] which explains this practice of receiving surprise bills from unknown providers. The short version is that hospitals use staffing companies who do their own billing (I think they mention that the pitch to the hospital is that their lives are made easier by not having to manage the extra billing). These staffing companies are frequently owned by private equity firms so they have an incentive to try to bill outside of the system to extract more profit. The whole podcast is worth listening to, not just this one episode, especially if you are frequently involved in the medical system. [0] https://armandalegshow.com/episode/can-they-freaking-do-that/ https://armandalegshow.com/episode/can-they-freaking-do-that...