Clean claimsthe metric that predicts collections is first-pass acceptance, not volume billed
Denials workedagents categorize by CARC and RARC and route each appeal, not just log it
US-basedstaff through Nav Central for the accounts that need a person

Medical billing companies handle the claim lifecycle for a practice: coding review, claim submission, payment posting, denial work, and accounts-receivable follow-up. A good one is judged by results, first-pass clean-claim rate, days in A/R, and net collections, rather than by the fact that it took billing off your plate. The decision that matters is not only whether to outsource billing, but whether the company resolves the hard part, the denials and the aged A/R, or simply submits claims and reports what bounced.

What medical billing companies do

A medical billing company manages the revenue cycle from charge to payment. It reviews coding, submits claims to payers, posts payments and adjustments, works denials, and follows up on unpaid claims. Some also handle eligibility and prior authorization on the front end, which prevents denials rather than reacting to them. The value is specialization: billing is detailed, payer rules change constantly, and a dedicated team keeps claims moving. The risk is that some companies optimize for claims submitted rather than dollars collected, so the aged and denied claims, where the real money sits, get less attention.

Flexbone revenue cycle audit

Get an outside read on your medical billing companies workflow

In 30 minutes we map your current volume, the payers and systems involved, where staff time goes, and the highest-ROI calls and follow-ups Flexbone can take off your team first, scoped to the work you actually run.

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How to evaluate a medical billing company

Weigh a few things when comparing medical billing companies. First, the metrics they report: first-pass clean-claim rate, days in A/R, net collection rate, and denial rate, not just charges submitted. Second, denial work: do they categorize denials by CARC and RARC code and appeal them, or only report them back to you. Claim denials are a large source of lost revenue; KFF found that HealthCare.gov insurers denied 16.6% of in-network claims in 2021, and consumers appealed fewer than 0.2% (KFF analysis of 2021 claims data). Third, front-end prevention: eligibility and prior authorization that stop denials before they happen. Fourth, transparency and where staff sit. Fifth, the HIPAA safeguards any billing partner needs.

AI-first billing versus a labor shop

Most billing companies scale by adding billers, often offshore, and price accordingly. An AI-first billing model runs the repetitive steps, eligibility checks, claim status calls, denial categorization, and A/R follow-up, with agents, and routes the judgment calls to staff. That means the routine 835 posting and the 276/277 status check happen without a person, and biller time concentrates on appeals and complex accounts. The result is consistency, because the rules apply the same way every time, and economics that do not rise one-for-one with claim volume. See the denials management page for how the appeal routing works.

How Flexbone runs medical billing

Flexbone pairs AI voice and browser agents with US-based human staff through our partnership with Nav Central, a 24/7 clinical command center. The agents run the repetitive keystrokes and phone calls, and the Nav Central team steps in where a task needs a person. In our own deployment, that model made more than 300 staff AI-powered and removed over 1,000 hours of manual work a month (Nav Central case study). It is an AI-first service with people behind it, not labor billed by the seat. On billing specifically, the agents verify eligibility up front, submit and check claim status, read the 835 remittance to categorize denials by CARC and RARC, and follow up on aged A/R, while staff work the appeals and the accounts that need judgment. The deployment is HIPAA compliant and scoped to your payers and specialty, and you get the metrics that matter, clean-claim rate, days in A/R, and collections, rather than a report of what bounced.