The key performance indicators that reveal whether a billing partner is genuinely improving your revenue cycle.
Whether billing is handled in-house or outsourced, the same core metrics reveal whether the process is actually working — and practices that don't track these regularly often don't discover a problem until cash flow makes it obvious.
1. Days in Accounts Receivable
Covered in depth in our [reducing days in AR](/blog/how-to-reduce-days-in-ar) guide — this is the single clearest indicator of overall revenue cycle health.
2. First-Pass Claim Acceptance Rate
The percentage of claims accepted without correction on first submission. A low rate here points to upstream eligibility, coding, or authorization issues.
3. Denial Rate by Category
Not just an overall denial percentage, but denials broken down by reason — see our [top OB/GYN denial reasons](/blog/top-obgyn-denial-reasons) guide for the categories worth tracking specifically.
4. Net Collection Rate
The percentage of collectible revenue actually collected, which accounts for contractual adjustments rather than comparing collections to gross charges.
5. Credentialing Turnaround Time
Relevant whenever onboarding new providers — see our [credentialing timeline guide](/blog/payer-credentialing-timeline) for realistic benchmarks to compare against.
6. Cost to Collect
Total billing-related cost as a percentage of collections — the metric that ultimately determines whether a billing arrangement, in-house or outsourced, is genuinely cost-effective.
7. Aging Bucket Distribution
How much AR sits in 0-30, 31-60, 61-90, and 90+ day buckets — a shifting distribution toward older buckets is an early warning sign before the total AR number itself looks alarming.
8. Patient Statement Response Time
How quickly patient-responsibility balances are billed and collected, which affects both cash flow and patient satisfaction.
Key Takeaways
- ›Track denial rate by category, not just as a single aggregate number
- ›Aging bucket distribution often signals problems before total AR does
- ›Cost to collect is the metric that ultimately validates ROI
See how these metrics translate into real practice outcomes on our [results page](/results), or use our [calculator](/calculator) to benchmark your own numbers.