DSO — Days Sales Outstanding — is the single most important financial metric in medical billing that clinic owners rarely track. It measures how many days on average it takes to collect payment after a service is delivered. The lower the DSO, the faster your practice converts services into cash.
How to Calculate DSO
DSO = (Total AR Outstanding / Total Revenue for Period) × Number of Days in Period. For example: if your practice has $180,000 in outstanding AR at the end of a 30-day month, and you collected $90,000 that month, your DSO is (180,000 / 90,000) × 30 = 60 days.
What is a Good DSO for Florida Medical Practices?
- ✓Excellent: Under 30 days — achievable for practices with clean claim rates above 95% and fast payer contracts
- ✓Good: 30–45 days — typical for well-managed Florida practices
- ✓Average: 45–60 days — industry average; indicates denials or follow-up gaps
- ✓Problem: 60–90 days — revenue cycle has structural issues requiring immediate attention
- ✓Critical: Over 90 days — cash flow is impaired; likely has significant uncollectable AR aging beyond 180 days
The 4 Causes of High DSO in Florida
- ✓High denial rate — every denied claim adds 30–90 days to the collection cycle. Denials are the leading cause of high DSO in Florida Medicaid billing.
- ✓Slow claim submission — claims submitted more than 48 hours after service delivery add unnecessary days before the payment cycle even starts.
- ✓Inadequate AR follow-up — payers that have not responded within 30 days need active follow-up. AR that sits unworked past 60 days has dramatically lower recovery rates.
- ✓Poor insurance verification at scheduling — ineligible patients or plans with expired coverage create AR that cannot be collected from the payer.
30-Day DSO Reduction Action Plan
- ✓Week 1: Pull your current AR aging report. Identify all claims over 45 days and sort by dollar amount. Work the top 20 by value first.
- ✓Week 2: Implement same-day claim submission for all new encounters. Every day of delay in submission adds a day to DSO.
- ✓Week 3: Set up automated eligibility verification at scheduling and again 24 hours before the appointment. Catch ineligible patients before the service.
- ✓Week 4: Establish a denial response protocol — every denial worked within 5 business days of receipt. Denials that sit become write-offs.
Leymax AR follow-up is included in every managed billing engagement. We work every aging bucket systematically — 30, 60, 90, and 90+ days — with documented follow-up on every open claim.
See our AR follow-up service →