Revenue problems rarely arrive with a clear warning. More often, they build quietly.
Deposits stop growing. Accounts receivable gets older. Staff members spend more time correcting insurance issues. Providers see more patients, but the practice’s financial position does not improve.
For practice managers, healthcare providers, and owners, these patterns can be difficult to identify because payments are still coming in. Claims are being submitted, reports are being delivered, and your medical billing company may insist that everything is under control.
However, revenue can still be delayed, underpaid, written off, or overlooked while the billing process appears active.
A medical billing company may be costing your practice money when A/R continues to age, preventable denials increase, claims receive little follow-up, unexplained write-offs appear, or collections fail to keep pace with patient volume. The key is evaluating the entire revenue cycle rather than looking at collections alone.
Key Takeaways
Before diving into all 17 warning signs, practice leadership should pay particular attention to:
- Rising days in accounts receivable
- Increasing A/R over 90 days
- Recurring claim rejections and denials
- Timely filing losses
- Unexplained adjustments or write-offs
- Weak follow-up on difficult claims
- Credentialing-related payment problems
- Increasing patient volume without corresponding collection growth
- Reports that show totals without explaining what is actually happening
Outsourcing medical billing should create greater financial control, not less visibility.
A dependable revenue cycle management partner should submit accurate claims, follow payer requirements, reduce preventable denials, work aging balances, and clearly explain what is happening with your revenue.
No single metric can determine whether a billing company is performing well. Specialty, payer mix, patient demographics, service type, and location all affect revenue cycle performance.
Still, recurring patterns can reveal when your billing process is failing to adequately protect earned revenue.
Start With the Revenue Cycle Metrics That Matter
Before blaming patient volume, payer behavior, reimbursement changes, or seasonal fluctuations, review the direction of your core financial indicators.
Practice leadership should regularly monitor:
- Days in accounts receivable
- First-pass claim acceptance
- Clearinghouse rejection rates
- Initial and preventable denial rates
- A/R older than 90 days
- Net collection performance
- Unbilled encounters
- Charge-entry delays
- Underpayments
- Patient balance collections
- Claims with no recent follow-up activity
The exact targets will vary from one organization to another.
An urgent care clinic, for example, will not necessarily have the same payment cycle as a behavioral health group, surgical practice, therapy organization, laboratory, or diagnostic provider.
The more important question is the direction of the numbers.
Are they improving, remaining stable, or deteriorating?
Rising A/R, growing denial volume, increasing unbilled encounters, and flat collections usually warrant a deeper operational review.
How A/R Aging Can Reveal Revenue Risk
A/R aging provides a useful view of where outstanding revenue is sitting in the collection cycle.
A growing percentage of receivables in older aging categories may indicate delayed payer follow-up, unresolved denials, credentialing problems, missing documentation, or weak patient balance management.
The A/R aging comparison in the original analysis illustrates how an at-risk revenue cycle may gradually shift more outstanding balances into older categories. These figures should be treated as examples rather than universal benchmarks.
Every practice should interpret its aging based on its own specialty, payer contracts, service model, claim types, and historical performance.
Now consider the individual warning signs.
1. Your Days in A/R Keep Increasing
Days in accounts receivable (A/R) estimates how long it takes your practice to collect payment after providing a service.
A temporary increase may have a reasonable explanation, such as a major payer issue, credentialing delay, or a group of claims under review.
A steady month-over-month increase is more concerning.
Common causes include:
- Delayed charge entry
- Claims not being submitted consistently
- Unresolved clearinghouse rejections
- Weak payer follow-up
- Uncollected patient balances
Ask your medical billing company to provide days in A/R by payer, provider, location, and financial class.
A single practice-wide average can hide the actual source of the problem.
2. Too Many Claims Are Rejected Before Adjudication
A rejected claim has not completed normal payer adjudication.
Rejections may result from incorrect demographic information, invalid insurance details, provider enrollment problems, coding errors, or missing claim data.
A recurring pattern of claim rejections can indicate weak claim scrubbing or poor communication between the billing team and your front office.
Your billing company should not simply correct rejected claims.
It should:
- Correct them promptly.
- Track the root cause.
- Identify recurring patterns.
- Communicate those patterns to the appropriate team.
- Help prevent the same problem from happening again.
Repeatedly correcting the same preventable mistake is not effective revenue cycle management.
3. Your A/R Over 90 Days Is Growing
Older receivables are not automatically uncollectible, but they generally require greater attention.
As claims age, appeal deadlines may expire, authorization information can become harder to locate, payer records become more difficult to reconcile, and supporting documentation may be delayed.
A growing balance over 90 days can also indicate that newer or easier claims are receiving attention while complex accounts remain unresolved.
Request an aging report that includes:
- Payer name
- Outstanding amount
- Denial or delay reason
- Last follow-up date
- Action taken
- Next required action
- Filing or appeal deadline
A status such as “in follow-up” tells practice leadership very little.
Your RCM company should be able to explain what action was taken, when it occurred, what the payer said, and what happens next.
4. Your Medical Billing Reports Feel Like a Black Box
A monthly collections total is not a complete revenue cycle report.
Knowing that your practice collected a certain dollar amount does not tell you how much was billed, rejected, denied, adjusted, underpaid, written off, or left untouched.
Practice managers and owners should have clear visibility into:
- Charges
- Payments
- Adjustments
- A/R aging
- Denials
- Payer trends
- Patient balances
- Underpayments
- Unresolved issues
More importantly, your medical billing company should explain the story behind the numbers.
Leadership should understand what changed, why it changed, how much revenue may be affected, and what corrective action is underway.
5. Timely Filing Denials Keep Appearing
Payers establish deadlines for initial claims, corrected claims, reconsiderations, and appeals.
Those requirements vary by payer, contract, and insurance plan.
Once an applicable deadline expires, a claim that could have been corrected may become a permanent revenue loss.
An occasional timely filing problem may result from late documentation or missing information from the practice. A recurring pattern deserves investigation.
Your medical billing company should have processes to:
- Maintain payer-specific deadlines
- Monitor claims approaching those deadlines
- Preserve proof of timely submission
- Track appeal and reconsideration deadlines
- Escalate missing information before time runs out
Timely filing should be managed proactively, not discovered after a payer refuses to reconsider the claim.
6. Balances Are Written Off Without Proper Approval
Not every adjustment is the same.
Contractual adjustments, administrative write-offs, bad debt, and small-balance adjustments should be categorized appropriately and follow an approved practice policy.
If balances are being written off simply to clean up an aging report, practice leadership loses visibility into why earned revenue was not collected.
Ask for a detailed adjustment report organized by:
- Payer
- Provider
- Location
- Adjustment reason
- Dollar amount
Large or unusual write-offs should receive appropriate review.
The goal is not to prevent legitimate adjustments. It is to make sure earned revenue is not being removed from A/R without a clear and documented explanation.
7. Your Staff Is Still Doing the Work You Outsourced
One reason practices outsource medical billing is to reduce the administrative burden on their internal teams.
If receptionists, office managers, and administrators are still routinely calling payers, researching patient statements, correcting billing errors, or handling most billing questions, your practice may effectively be paying twice for the same function.
Collaboration will always be necessary.
The billing company may need documentation, registration corrections, clinical clarification, or information that only the practice can provide.
However, responsibilities should be clearly defined.
When every difficult billing problem is pushed back to your staff, the outsourcing relationship may not be delivering its intended value.
8. Credentialing Problems Are Disrupting Claims
Credentialing and payer enrollment may not be included in every medical billing agreement, but the two functions are closely connected.
Claims can be denied or processed as out of network when a provider is not correctly linked to the:
- Group
- Tax identification number
- Service location
- Billing entity
- Payer contract
A capable RCM team should recognize credentialing-related denial patterns and communicate them quickly.
It should not repeatedly submit claims under an incorrect configuration without investigating the underlying problem.
For each new provider or location, practices should maintain a payer-by-payer enrollment tracker showing participation status, effective dates, reassignment details, and outstanding requirements.
9. Denied Claims Are Resubmitted Without Investigation
Not every medical claim denial should be handled the same way.
Some require a corrected claim. Others may require reconsideration, medical records, authorization evidence, coding corrections, payer escalation, or a formal appeal.
Blindly resubmitting a denied claim can produce another denial and waste valuable time.
Automatically appealing every denial is not the answer either.
The appropriate action depends on:
- Denial reason
- Remittance information
- Payer policy
- Supporting documentation
- Claim history
- Applicable deadlines
Effective denial management focuses on root cause and the correct resolution path rather than simply creating more claim activity.
10. Your Team Receives No Useful Feedback
Many medical billing problems begin before a claim is ever submitted.
Incorrect insurance information, missing referrals, incomplete authorization details, unsigned notes, unclear documentation, and missed charges can all delay reimbursement.
A strong medical billing company should identify these recurring patterns and provide actionable feedback.
That feedback should explain:
- What is going wrong
- Which department or workflow is affected
- How much revenue may be at risk
- What process needs to change
- Who is responsible for the correction
The strongest revenue cycle partnerships improve both front-end and back-end operations.
11. The Billing Team Does Not Understand Your Specialty
Medical billing requirements are not identical across specialties.
Urgent care, behavioral health, surgery, therapy, laboratory services, imaging, and primary care can involve different documentation requirements, payer policies, coding structures, and authorization rules.
A billing company without sufficient specialty knowledge may overlook payer edits, misunderstand billing requirements, or fail to recognize recurring reimbursement issues.
At the same time, practices should be cautious about companies promising overly aggressive or “maximum” coding.
The goal should be accurate, compliant, and defensible billing supported by the clinical record, not simply generating the highest possible charge.
12. You Do Not Have a Reliable Point of Contact
A dedicated account manager can be valuable, but clear ownership matters more than the title.
When collections fall, a payer stops processing claims, or a major denial trend develops, someone should coordinate the response and communicate with practice leadership.
You should not have to explain your entire practice to a different representative every time you need help.
A reliable account structure should include:
- A primary contact
- Backup coverage
- Defined escalation procedures
- Regular meetings
- Written follow-up
Complex revenue problems often involve multiple departments. Someone still needs to own the issue until it is resolved.
13. Staff Turnover Keeps Disrupting Your Account
Staff changes happen in every organization.
The real problem is loss of continuity.
Your practice should not suffer because a newly assigned biller has to rediscover your provider structure, payer requirements, outstanding denials, historical problems, or previous decisions.
A professional medical billing company should maintain:
- Account documentation
- Work queues
- Transition notes
- Escalation histories
- Standard operating procedures
If critical account knowledge exists only in one employee’s inbox or memory, unresolved claims can easily disappear during a staffing transition.
14. Patient Balances Are Treated as an Afterthought
Patient responsibility has become an increasingly important component of revenue cycle management.
A strong process begins before the statement is mailed.
It can include eligibility and benefit verification, understandable estimates when appropriate, clear financial policies, convenient payment options, accurate payment posting, and respectful follow-up.
Patient collections should not begin with a confusing bill arriving weeks after the visit.
The process must also account for applicable federal and state patient-protection requirements.
Before pursuing a patient balance, the practice should have confidence that coverage, contractual adjustments, and payer processing have been handled correctly.
15. Patient Volume Is Rising but Collections Are Flat
Higher patient volume does not automatically produce an equal percentage increase in collections.
Payer mix, reimbursement rates, procedure mix, claim lag, seasonal patterns, and other factors can affect deposits.
However, when visits and charges continue increasing for several months while collections remain flat, practice leadership should investigate.
Potential causes include:
- Missing encounters
- Delayed charge entry
- Unbilled procedures
- Rejected claims
- Credentialing failures
- Underpayments
- Unresolved denials
- Weak patient collections
Your medical billing company should be able to reconcile the revenue cycle from:
Scheduled visit → completed encounter → charge entered → claim submitted → payer adjudication → payment or patient responsibility
Without reconciliation, a completed patient encounter can potentially disappear from the revenue cycle without anyone noticing.
16. Your Billing Company Is Not Keeping Up With Current Requirements
Healthcare billing requirements continuously evolve.
Code sets, payer edits, authorization requirements, coverage policies, quality programs, electronic transaction requirements, and patient billing regulations can change.
Your billing partner does not need to predict every change.
It does need a reliable process for:
- Monitoring relevant updates
- Training billing staff
- Updating workflows
- Identifying affected claims or providers
- Notifying your practice when action is required
Outdated processes can contribute to denials, delayed reimbursement, compliance concerns, and unnecessary administrative work.
17. Easy Claims Get Paid While Difficult Revenue Is Ignored
Percentage-based medical billing can help align incentives, but it does not automatically guarantee complete follow-up.
Straightforward claims may pay with limited intervention.
Complex denials, secondary claims, coordination-of-benefits issues, underpayments, and aging balances often require substantially more manual work.
An understaffed or poorly managed billing operation may concentrate resources on quick payments while labor-intensive accounts remain unresolved.
Instead of looking only at total collections, ask:
- How many denials were resolved this month?
- How many appeals or reconsiderations were submitted?
- How many underpayments were identified?
- How much older A/R was recovered?
- How many claims had no activity during the month?
- Which payer issues remain unresolved?
This distinction is important because a practice can continue receiving deposits while significant revenue remains stuck elsewhere in the cycle. The original analysis specifically identifies complex denials, COB issues, underpayments, secondary claims, and older balances as areas requiring additional manual effort.
How to Evaluate Your Medical Billing Company
If several of these warning signs sound familiar, avoid making a decision based solely on general impressions.
Perform a structured review of your medical billing company’s performance.
Request these 10 reports:
- A/R aging by payer, provider, location, and financial class
- Rejections and denials grouped by root cause
- Unbilled encounters and charge-entry delays
- Timely filing and appeal deadline controls
- Adjustments and write-offs
- Underpayments and contract variances
- Patient balance performance
- Credentialing-related denials
- Claims with no recent activity
- A written improvement plan with assigned owners and deadlines
Then compare the information with available data from your EHR, practice management system, clearinghouse, payer portals, and bank deposits.
A polished dashboard can be useful, but a dashboard alone does not prove that every claim is being handled correctly.
The goal is to determine whether the underlying revenue cycle activity supports the numbers being reported.
When Should You Consider Changing Medical Billing Companies?
Do not replace a medical billing company because of one difficult month.
Payer outages, credentialing delays, staffing changes, large claim reviews, and other temporary circumstances can affect short-term revenue cycle performance.
A broader review becomes more important when problems are:
Persistent, financially significant, poorly explained, and resistant to correction.
Before changing RCM partners, document the problems, establish measurable expectations, and provide a reasonable remediation period.
If performance still does not improve, plan the transition carefully.
Before your existing medical billing company disengages, make sure your practice secures appropriate access to:
- Claim histories
- Payer portals
- Billing reports
- Clearinghouse records
- Patient balances
- Denial notes
- Appeal deadlines
- Enrollment and credentialing information
Poorly planned billing transitions can create new revenue problems while the practice is trying to solve old ones.
Frequently Asked Questions About Medical Billing Companies
How can I tell if my medical billing company is performing well?
Review trends in days in A/R, rejection rates, denials, older receivables, charge lag, collections, and unresolved claims.
Strong performance also involves clear reporting, documented payer follow-up, responsive communication, and measurable efforts to prevent recurring problems.
Do not evaluate performance based on collections alone.
What percentage of A/R should be over 90 days?
There is no single percentage that applies to every medical practice.
Specialty, payer mix, workers’ compensation claims, credentialing delays, patient balances, claim complexity, and other factors can affect A/R aging.
Instead of relying exclusively on a universal benchmark, determine whether your older A/R is growing and whether each outstanding account has a documented next action.
What is the difference between a rejected claim and a denied claim?
A rejected claim generally fails an initial clearinghouse or payer edit before completing adjudication.
A denied claim generally reaches the payer’s adjudication process but is not approved for payment.
Depending on the reason, a denied claim may require correction, reconsideration, documentation, authorization evidence, or an appeal.
Should a medical billing company appeal every denial?
No.
Every denial should be reviewed, but not every denial requires a formal appeal.
Some claims need a correction or additional information. Others require reconsideration or an appeal. Claims without valid coverage or adequate supporting documentation may not be recoverable.
The action should match the actual denial reason.
How often should practice leaders review medical billing reports?
Practice leadership should have access to important financial information throughout the month.
A formal monthly review should normally address charges, payments, adjustments, denials, A/R aging, write-offs, patient balances, and significant payer issues.
Practices experiencing major revenue-cycle problems may need more frequent reporting until the underlying issues are controlled.
Can a medical billing company cause low collections?
Yes, but low collections are not automatically the billing company’s fault.
Collections can also be affected by patient volume, payer mix, reimbursement rates, incomplete documentation, credentialing delays, authorization failures, and seasonal changes.
A proper revenue cycle review should examine the complete process from patient encounter through final payment rather than assuming one party is responsible.
What should I ask before switching medical billing companies?
Ask how the prospective company handles:
- Claim submission
- Clearinghouse rejections
- Denial management
- A/R follow-up
- Underpayments
- Patient balances
- Reporting
- Write-offs
- Data access
- Credentialing-related issues
- Account transitions
Do not choose a medical billing company based only on the lowest percentage fee.
A lower billing fee does not necessarily save money if earned revenue is not being properly identified and followed.
Can Claims Med Review Our Existing Revenue Cycle?
Yes. Claims Med can review available billing reports, A/R data, denial trends, payer issues, and workflow gaps to help practice leadership understand where revenue may be delayed or overlooked.
The purpose of the review is to identify specific operational problems and determine whether the existing process needs targeted correction or a broader revenue cycle management change.
Build a Revenue Cycle That Gives You Greater Control
Your practice should not have to choose between focusing on patients and understanding its financial performance.
The right revenue cycle management partner should provide both dependable execution and clear visibility.
Claims Med supports healthcare organizations with medical billing, denial management, accounts receivable follow-up, eligibility and benefit verification, payer enrollment, credentialing coordination, and practical performance reporting.
The objective is not simply to submit more claims.
It is to create a revenue cycle that accurately captures completed services, identifies payment barriers, reduces preventable delays, and gives leadership a clearer understanding of what is happening with its revenue.
If collections are not keeping pace with patient volume, your A/R continues to age, or your current billing reports leave more questions than answers, contact Claims Med for a focused revenue cycle review.