Free Guide · 4 Billing Errors

Medical bills have errors more often than you'd think.

If you're on Medicare — or helping someone who is — here's how to check yours before you pay it.

If you've ever opened a bill and felt your stomach drop — not sure if the amount is right, not sure what half the codes even mean, not sure if you're supposed to just pay it — you're not alone, and you're not imagining it.

Billing errors show up on the majority of medical bills. Providers don't audit in your favor. Insurance companies don't call to say “we think we overcharged you.” The system assumes you'll just pay what's printed on the page — and most people do, simply because they don't know what to look for.

That Medical Bill in Your Mailbox Might Be Wrong.

Lee Hefner

I began digging into billing errors after the stress of my wife's shoulder replacement surgery. And I started to hear other stories like mine of people finding medical billing mistakes that shouldn't have been there, services billed twice, codes that didn't match what actually happened. In fact, turns out this is incredibly common. Most people just pay what the bill says because untangling it feels impossible. It's not, once you know what to look for.

You Can Learn to Spot the Mistakes —
In Minutes, Not Hours

You don't need a background in medicine, insurance, or accounting. You just need to know the handful of places errors actually hide — and once you do, checking a bill takes minutes, not hours.

That's what I want to hand you today, for free.

This isn't a vague checklist — it's the same four checks I use myself, laid out step by step so you can run them on your very next bill.

Want a simple walkthrough for catching errors like these on your own bills?

Already looking for the complete system? Here's the link.

Not affiliated with Medicare or any insurance provider. © 2026 Lee Hefner, The Medical Bill Detective.