TL;DR: Pick a billing company that works primarily in outpatient therapy and can explain the 8-minute rule, GP/GO/GN modifiers, and KX thresholds unprompted. Then check contract length and exit terms, demand denial reports broken down by reason code, payer, and therapist, avoid proprietary-software lock-in, and ask who handles live payer calls.

What should you confirm first?

Choosing a billing company starts with confirming the vendor works exclusively or primarily with outpatient therapy practices. Generic medical billers often lack depth on the 8-minute rule, the difference between GP and GO modifiers, or how KX modifiers interact with the annual threshold. When a vendor cannot explain these concepts without prompting, the fit is usually poor.

Which contract terms matter most?

Contract length and termination terms matter. Some agreements lock practices into 24- or 36-month terms with significant early termination fees. Shorter initial terms or clear month-to-month options after the first year give you more control if performance falls short.

What reporting should you expect?

Reporting transparency separates stronger partners from weaker ones. You should receive monthly denial reports broken down by reason code, payer, and therapist. The report should also show net collection rate and average days in A/R. Vendors that provide only a single percentage or a dashboard without raw data limit your ability to identify problems early.

Will you be locked into their software?

Software lock-in creates hidden costs. Some companies require you to use their proprietary practice management system. Others integrate with the major platforms already in use. Ask whether you can keep your current scheduling and documentation tools and still receive full billing services.

How do they treat denials?

Outcome ownership shows up in how the vendor discusses denials. A partner that treats denials as a shared responsibility rather than “provider error” tends to invest in coder training and proactive authorization tracking. Ask for examples of how they reduced denial rates for existing therapy clients over a 12-month period.

Who handles live payer calls?

Offshore-only teams can create communication gaps during appeals and payer calls. Hybrid models that keep denial management and payer relations onshore while using offshore teams for data entry often deliver better results. Clarify who handles live payer interactions before signing.

Which questions reveal therapy fluency?

Questions worth asking include:

  • How do you handle the Medicare 8-minute rule on mixed untimed and timed units?
  • What is your process when a commercial payer applies the KX modifier threshold mid-plan of care?
  • Can you provide a sample denial report that shows reason codes specific to therapy services?
  • How many of your current clients bill workers’ compensation in states with strict fee schedules?

The answers reveal whether the company has built processes around therapy rules or simply applies general medical billing logic.

A billing company that understands plan of care requirements, prior authorization workflows, and the documentation standards that support medical necessity reduces the administrative load on your clinical team. That reduction shows up in cleaner claims and faster payment cycles.

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