How to Track Medical Bills (and Catch Billing Errors)

To track medical bills, log every bill with the provider, date of service, amount and due date, and don't pay it until you've matched it to the Explanation of Benefits (EOB) from your insurer. Medical bills arrive weeks after the visit, often from several providers for one visit, and errors are common enough that checking before paying is worth the time.

Step 1: one log for every bill

For each bill, record:

• Provider (hospital, doctor's group, lab, imaging centre: one visit can produce three or four separate bills).
• Date of service and patient.
• Amount billed, insurance paid, and what the bill says you owe.
• Due date, account number, and status: waiting for EOB, checked, disputed, on a plan, paid.

A spreadsheet works (the bill tracker template has the columns), or add each bill to the online bill tracker with a "Medical" category so its due date gets a reminder like any other bill.

Step 2: match the bill to the EOB

Your insurer sends an EOB for each claim. It is not a bill: it shows what was billed, what the plan allowed, what it paid and what you owe. The amount on the provider's bill should match "patient responsibility" on the EOB. If the provider bills more, or the EOB hasn't arrived yet, wait and call the provider before paying.

Step 3: check for common errors

• Charges for services you didn't receive, or duplicate charges.
• A claim denied for a coding or paperwork reason (call the insurer and ask what's needed to reprocess it).
• Out-of-network billing for care you couldn't choose, such as emergency care. US rules (the No Surprises Act) limit many of these bills.
• Payments you've made that aren't credited.

Ask the provider for an itemized bill whenever a total looks high. You're entitled to see what each charge was for.

Step 4: if you can't pay it all

Most hospitals and many practices offer interest-free payment plans; ask before the due date. Nonprofit hospitals must have financial assistance policies, and many offer discounts based on income, sometimes after the bill has been sent. Ask about a discount for paying in full, too. Avoid moving a medical bill onto a high-interest credit card unless you can pay it off quickly; the credit card payoff calculator shows what that would cost.

Step 5: keep the records

Keep EOBs, itemized bills and payment receipts for at least a year, longer if you might deduct medical expenses (US taxpayers who itemize can deduct qualifying medical costs above 7.5% of adjusted gross income) or use an HSA or FSA. Mark each bill paid with the date in your log.

A payment plan is just another monthly bill: put it in your tracker with its own due date so it never slips. If several bills are on plans at once, the which bills to pay first guide helps set the order.