10 Warning Signs Your Medical Billing Company Is Costing You Money

Call your billing company today and ask for three numbers: your net collection rate, your denial rate, and the percentage of your accounts receivable older than 90 days. Any billing operation actually working your account can produce all three within one business day. If yours cannot, that failure is the finding, before you ever see a single digit. Basic performance numbers live inside the practice management system your biller logs into every morning. Producing them requires a report button, no special software and no consultant. Here is what those numbers should look like once they arrive. Net collection rate above 95 percent is the standard, and top performers exceed 97 percent according to MGMA benchmarks. Days in AR under 35 is healthy, and under 28 puts you in the top quartile. A denial rate under 4 percent is achievable when prevention workflows exist, meaning eligibility checks, coding review, and clean data entry happen before submission rather than after rejection. Clean claim rate should sit above 95 percent, which means claims leave the building right the first time. A disciplined revenue cycle management operation tracks these weekly and hands them over without hesitation, because good numbers are their best sales tool. Hesitation, delay, or a request to check back next month tells you the numbers are either bad or unwatched. Both cost you money, and the rest of this post shows you exactly where to look.

Reports are half of what you pay a billing company for. The other half is the work the reports prove. Treat reporting behavior as evidence, because it is. Warning sign one: reports arrive late, arrive unreadable, or arrive only when you ask. A monthly summary that shows up on the 25th, or a 40-tab spreadsheet nobody on your staff can interpret, serves the same purpose as no report at all. Billing companies performing well send clean summaries on a schedule, unprompted, because the numbers flatter them. Warning sign two: you have never seen a denial rate or a breakdown of denial reasons. This one deserves the most attention. Initial denial rates across the industry averaged 11.8 percent in 2024, per Kodiak Solutions, so roughly one claim in nine bounces on first submission. Now pair that with an HFMA benchmark: up to 65 percent of denied claims are never resubmitted. A biller who never reports denial metrics is very often in that group, because a denial queue nobody measures is a denial queue nobody works. And abandonment is expensive in a specific, provable way. A Premier survey covering 2024 and 2025 found that 70 percent of denials that get fought are ultimately overturned. An unworked denial queue is abandoned revenue sitting in a work list nobody opens. If you want to know what those denials typically look like, start with the most common denial codes and ask your biller how many of each hit your account last quarter.

Accounts receivable ages whether anyone works it or not, which makes it the hardest number to hide. Warning sign three: your AR over 90 days keeps growing while your biller reports that everything is fine. Those two statements cannot both be true. Claims do not drift past 90 days on their own. They land there because nobody followed up, appealed, or corrected them inside payer timely filing windows, and once those windows close, the money is gone permanently. A growing over-90 bucket is money on a countdown clock. If aged AR has already piled up, a focused AR recovery project can claw back a meaningful share before deadlines close, but the follow-up discipline underneath still has to change or the bucket refills. Warning sign four: payments post weeks after the EOBs arrive. Slow posting distorts every other number you look at. Your AR reads worse than reality, your collection reports run behind, and patient statements go out carrying balances that were already paid, which generates the angry phone calls covered later in this post. Slow posting also buries deeper problems, because you cannot catch a payer underpaying you if the payment never gets matched against the expected allowable. Posting within a few business days of remittance is a baseline operational standard. When postings lag by weeks, the right question is what else is lagging that you cannot see.

Two of the quietest warning signs require nothing from your biller at all. You can check both using your own schedule and your own bank deposits. Warning sign five: claim volume dropped, but you saw the same patients. If your schedule shows 400 encounters last month and your biller submitted 340 claims, then 60 encounters are sitting somewhere unbilled. Charges that never become claims are the purest form of lost revenue. There is no denial to appeal and no AR to work, because the visit never entered the system. Compare encounters on your schedule against claims submitted for the same period, every month. The two numbers should track within a small margin, and any gap deserves a same-week explanation. Warning sign six: year-over-year revenue is down while patient volume held steady. Payer fee schedules move a little annually, but they do not explain a 10 or 15 percent slide against flat volume. When volume is stable and collections fall, the leak lives in the billing process: rising denials nobody appeals, coding that drifted conservative, credits sitting unresolved, or claims quietly aging past filing limits. Pull collections per encounter for this year and last year. It is one division problem per year, and it cuts through every excuse. If the ratio fell and your case mix did not change, your billing company owes you a documented explanation, and payers being slow does not qualify as one.

Not every red flag lives in a spreadsheet. Four of the most reliable ones show up in how the account is handled day to day. Warning sign seven: patient billing complaints you hear about first. When patients call your front desk angry about statements, balances, or collection letters your biller never mentioned, your billing company has decided your reputation is your problem. Patient-facing billing errors also predict claim-side errors, since both come from the same sloppy data handling. Warning sign eight: credentialing lapses discovered through denials. If the first signal that a provider's payer enrollment lapsed is a stack of denials, nobody was watching expiration dates. A credentialing gap can freeze one provider's revenue for months, and retroactive fixes are limited or impossible with many payers. Warning sign nine: fees charged on billed charges, or fees that crept. A biller paid a percentage of billed charges gets paid whether or not you do. A percentage of actual collections ties their paycheck to yours. Separately, pull 24 months of invoices. If the effective rate climbed without any change in services, money is leaking on the expense side too. Warning sign ten: nobody owns your account. If every call reaches a different person who needs the backstory again, your account is worked from a shared queue by whoever is free, and queue accounts get queue effort. Ask one question: who, by name, worked my denials last week? A real answer exists or it does not.

Here is the whole audit. Five requests, one afternoon, no consultant required. First, request a denial report by reason code covering the last 90 days. You want counts and dollars per code, plus the disposition of each denial after it landed: appealed, corrected, written off, or untouched. A biller doing the work exports this in minutes. A biller who stalls, or sends totals with no reason codes, just answered a different question. Second, request an AR aging by payer. Total AR hides everything interesting. Broken out by payer and age bucket, you can see precisely where money is stuck and whether one payer's claims are dying past 90 days while the summary line looks acceptable. Third, compare collections per encounter, this year against last year, same months and same providers. This single ratio catches unsubmitted claims, abandoned denials, and posting games simultaneously, because every failure mode eventually surfaces as fewer dollars per visit. Fourth, spot-check ten EOBs against your postings. Pull ten remittances at random and trace each into the practice management system. Watch for posting dates weeks after the remit date, adjustments written off without explanation, and patient balances that never generated a statement. Fifth, ask who exactly works your account: names, roles, hours per week. Vague answers here explain whatever the first four steps uncovered. Score the responses against the benchmarks at the top of this post. Silence, delay, or defensiveness on any request counts as a failing grade on that item.

Suppose the audit came back ugly. Switching is less painful than most practice owners fear, provided the sequence is right. A typical transition runs 30 to 60 days. During that window, the outgoing biller works claims already in flight through a defined cutoff date, while the incoming team takes everything with dates of service after the cutoff. Put that cutoff in writing. Timing the switch at a month boundary keeps the AR split clean and makes your before-and-after comparison honest, which matters twelve months from now when you measure whether the change paid off. Before any termination notice goes out, secure your data. You own your patient records, your claim history, and your financial data, full stop. Get your clearinghouse credentials, payer portal logins, and a complete export of your practice management data into your own hands first. Leaving without securing data access is the single most common switching mistake, and it turns a routine transition into a hostage negotiation. A biller who resists returning credentials is confirming every suspicion the audit raised. Read your contract for the notice period, commonly 30 to 90 days, and check the treatment of claims submitted before termination. Most agreements let the outgoing biller collect their fee on those claims as payments arrive, which is fair compensation for work already done. Any clause claiming ownership of your data, or charging you to get it back, deserved to be negotiated out and can still be challenged now.

Twenty years of cleaning up quiet billing relationships taught me one pattern: practices almost never leave over a single bad month. They leave over silence. A biller who reports honestly, shows you the denial queue, and explains a rough month earns patience. A biller who goes quiet earns an audit. A healthy relationship reads like this: reports arrive on schedule without being asked, denial reasons come with a fix attached, postings land within days of remittance, one named person knows your account cold, and fees are a percentage of what actually gets collected. Practices with that arrangement rarely think about their billing company at all, which is the point. If you are unsure where your practice stands, Go Medical Billing runs a free billing performance review covering the exact metrics in this post: net collection rate, denial rate and reasons, AR aging by payer, posting lag, and your collections-per-encounter trend. You get the numbers and a straight read on whether your current setup is working, whoever ends up doing your billing afterward. Request the free review here and bring your last three months of reports if you have them. And if you cannot get those reports from your biller in time for the call, you already have your answer, and now you know exactly what to do about it.