Katherine Hobson, Money.com
Medical billing errors are more common—and more costly—than you might think. Here’s how to give your bills a checkup.
Odds are, there’s a mistake in the medical bill that’s in your mailbox. A recent NerdWallet analysis of 2013 hospital audits by Medicare found that an average 49% of bills contained errors, and that some medical centers messed up on more than 80% of claims to Medicare.