Quick Answer: In claims reviews we have run, a practice can bill dozens of insurance carriers for months and hear nothing back. None had ever sent back a payment, a denial, or a remittance (the report that explains what an insurer paid). Silence like that usually traces back to enrollment that never finished, and it tends to show up where a practice has started billing new plans.
The cause was enrollment, the sign-up paperwork that lets a practice bill an insurer. When payer and EDI setup is never completed, claims never enter the carriers’ adjudication systems (where an insurer decides what to pay), and no rejection comes back to say so. A carrier that has never responded needs an enrollment check today, because filing deadlines of 90 to 180 days keep running.
Somewhere on your aging report (the list of unpaid balances sorted by age) is a carrier balance that has stopped registering as strange. You billed them. Months passed. Nothing came back, so someone marked the claims “in process” and moved on. Every week the balance grows a little, and every week it looks a little more normal.
We have hit this pattern in claims reviews more than once, and the full write-up is in Your Claims Went Somewhere. Nobody Could Say Where.. A real share of the carriers on the book had never responded at all. Not one payment, denial, or remittance had ever come back from any of them. Silence, at scale.
Silence is strange behavior for a carrier, and in medical billing, silent payers have a cause you can find. A carrier that receives a claim does something with it: pays it, denies it, or asks for more information. Even a lowball payment produces a remittance explaining itself. Total silence points somewhere else entirely. The claim never made it into the carrier’s adjudication system in the first place.
Which is what the data showed. The silent carriers clustered where the practice had recently started billing new plans. When enrollment paperwork falls behind growth, this is the result.
Where no EDI enrollment exists, the electronic connection a carrier requires before it will accept a claim, claims go out on schedule and get blocked at the door. Claims were going out on schedule and getting blocked at the door. And because nothing entered the system, nothing came back, and no report flagged it.
That last part is worth sitting with. A denial gets worked and a rejection gets fixed. Silence just gets older. The aging report showed these balances as old AR (accounts receivable, the money owed to you). It is the same label the report gives a slow payer, and old AR is a category billing teams learn to live with.
Why silence is the most expensive category on the report
Insurance contracts set filing deadlines, commonly 90 to 180 days from the date of service. A claim that misses the window becomes legally unpayable, and the write-off that follows never has to be explained to anyone.
At the silent carriers, every claim was aging toward that cliff with nobody assigned to it, because nobody knew the category existed. A slow payer costs you interest. A silent payer costs you the principal.
Nobody involved did anything wrong. The billing team was submitting on schedule. The carrier never saw the claims. The gap was setup work, payer enrollment and EDI paperwork, which has no queue and no owner in a growing practice because everyone assumes it was finished at go-live.
The same investigation surfaced a cousin problem worth separating: carriers that paid normally and then went quiet. Those are different.
They engaged once, so the enrollment existed and something later cut the path, a credentialing lapse (the provider’s approval to bill an insurer lapsed) or a bank-account change nobody escalated. The fix there starts with a phone call that opens with the date of the last payment.
The never-answered carriers get a different first move, because there is nobody useful to call until the enrollment exists.
How to find yours in ten minutes
You do not need new software to check this. Run your AR grouped by carrier and look for one signature: billed dollars above zero, paid dollars at zero, and zero remittances on file, sustained over months. A carrier matching all three has never engaged with you. That signature is different from slow, and it is different from denied. It means unreachable.
For each carrier that matches, check two things. First, whether your payer enrollment for that carrier and that state is complete and confirmed. Second, whether an EDI connection exists at your clearinghouse (the service that routes your claims to insurers).
In our investigation, that one query surfaced every silent carrier on the book, and the verdict for each read in everyday words: this carrier has never responded to us. Confirm we are enrolled before the filing deadline.
The practice that finds this in month two keeps the money. The practice that finds it in month fourteen documents a loss. The data is identical in both cases. The difference is whether anyone gave “never responded” its own column.
Grab 30 minutes with us. You’ll leave with the list of carriers that have never answered you.
Questions people ask
Why would an insurance company never respond to claims?
Because the claims never reached its adjudication system. Missing payer enrollment or a missing EDI connection blocks a claim at the door, and no rejection reaches the billing queue to say so. The carrier is not ignoring you. It has no record you billed it.
What is EDI enrollment?
EDI (electronic data interchange) enrollment is the setup that lets a carrier accept your claims electronically. It is completed carrier by carrier, usually through your clearinghouse. Without it, submitted claims have nowhere to land, and the carrier has no record of the bill or any obligation to respond.
How do I find carriers that have never paid us?
Group your AR by carrier and filter for billed above zero, paid at zero, and zero electronic remittances, sustained over months. That signature separates a slow payer from a carrier that has never engaged.
A different signature, every metric clean and the money still not arriving, points at recoupment, the insurer taking back what it paid.
Do filing deadlines still apply if the payer never responded?
Yes. Filing windows, commonly 90 to 180 days from the date of service, run whether or not the carrier ever received the claim. Silence does not pause the clock. Confirming enrollment before the oldest claims cross their deadlines is the urgent step, ahead of any rebilling.
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