Days in Accounts Receivable (A/R) is one of the most telling indicators of a medical practice's financial vitality. This metric measures the average number of days it takes for a practice to collect payment following a patient encounter. Practices with prolonged A/R cycles face cash flow bottlenecks and risk losing revenue to payer timely filing limits. Here is how practices can structure workflows to keep receivables healthy.
How to Measure and Benchmark Days in A/R
To calculate Days in A/R, divide total current accounts receivable by the practice's average daily gross charges over the previous 90 to 180 days. In high-performing outpatient medical practices, Days in A/R typically sits between 25 and 35 days. When this figure exceeds 45 to 50 days, operational bottlenecks are almost always present in claim submission, clearinghouse rejections, or unpaid balance follow-up.
Segmenting A/R by Aging Buckets and Priority
Not all outstanding receivables require identical attention. Standard industry aging buckets categorize balances into 0–30 days, 31–60 days, 61–90 days, and 91+ days. Prioritizing follow-up based on dollar value and payer timely filing thresholds prevents high-value claims from expiring while administrative teams chase nominal balances.
- 0–30 Days: Primary transmission phase; monitor clearinghouse 277 acknowledgement files to ensure claims are accepted into payer adjudication queues.
- 31–60 Days: Early intervention phase; investigate unpaid claims that have surpassed standard 30-day payer adjudication cycles.
- 61–90 Days: High-priority resolution phase; initiate phone outreach or online portal status inquiries before claims cross the 90-day mark.
- 91+ Days: Intensive recovery; identify systemic payer disputes, secondary crossover failures, or patient responsibility balances.
Eliminating Billing Lag and Submission Delays
A frequent root cause of elevated Days in A/R is billing lag—the elapsed time between the date of patient service and the date the claim is transmitted to the clearinghouse. When clinicians hold open encounter notes for weeks or billing staff process charges once a month, the revenue cycle is delayed before claims even reach payers. Establishing a 24- to 48-hour note sign-off and charge review standard keeps claims moving steadily.
Automating Electronic Remittance Advice (ERA) Posting
Manual paper explanation of benefits (EOB) entry introduces human error and creates reconciliation backlogs. Transitioning all contracted payers to Electronic Remittance Advice (ERA/835) and Electronic Funds Transfer (EFT) ensures payments post automatically, secondary claims dispatch immediately, and patient balances generate without delay.



