The Explanation of Benefits Is Not a Bill: Read the Hospital Itemization Against Your Parent's Insurance Summary

Two papers arrive in the same week and look alike. One is from the insurer. The other is from the hospital. The insurer paper says what was processed and what may be owed. The hospital paper says what was charged. They are not the same document, and they do not have to match line for line. Your job is to check that the two agree on the facts that matter.

Local option: New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.

Step 1: Match the basics

On each paper, find the dates of service, the facility name, and your parent's name and member or Medicare number. If any of those differ, stop there and call. A mismatch in the basics often causes the bigger errors that follow.

Step 2: Read the insurer summary as a summary

Medicare sends a Medicare Summary Notice, and private plans send an explanation of benefits. Each one shows what was approved, what was paid, and an amount the plan says may be billed to your parent. Read the wording exactly. A line that says the provider may bill your parent is not the same as a bill from the hospital. Medicare.gov explains the Medicare Summary Notice line by line, and that page is worth reading once with the notice in your hand.

Step 3: Read the hospital itemization

Ask the billing office for the itemized statement, the list of each service, supply, and day with its code and charge. Check for services your parent never received, for the same item listed twice, and for days that do not match the stay. Write each question next to the line it concerns, so the call stays on one point at a time.

Step 4: Ask which status the stay was billed under

Ask whether the stay was billed as inpatient or as observation. The label matters later, because Medicare treats observation and inpatient stays differently for some later coverage, including skilled nursing care. Ask the question in those words, and ask the billing office to write the answer down.

Step 5: Keep the trail

Keep one folder with both papers, every call note, and the name of the person you spoke with and the date of each call. Do not pay just to end a conversation. If a balance looks wrong, ask for the account to be placed on hold while it is reviewed. If the answers do not fit the papers, the Medicare line is 1-800-MEDICARE. Consumers with private insurance in Missouri can bring a complaint to the Missouri Department of Commerce and Insurance.

The point of this paper check is not to win an argument. It is to know, before a bill arrives, which number is right and which one is only a summary. The Sources page lists the official pages behind these steps.