Occupational Therapy billing and revenue cycle for Illinois providers.
Illinois operates 931 occupational therapy billing organizations registered in NPPES, representing 4.0 percent of the U.S. occupational therapy billing footprint. Illinois is an established occupational therapy billing market. OT revenue cycle requires 8-minute rule discipline, GO modifier compliance, Plan of Care recertification, KX modifier above threshold, pediatric and school-based billing workflows, and specialty OT coding depth. Illinois OT practices need RCM with OT depth.
What good occupational therapy billing execution looks like for Illinois providers.
The Illinois occupational therapy billing market has its own quirks. Here is the operating discipline we install on every Illinois engagement.
- 8-minute rule + timed code billingOT billing under Medicare 8-minute rule converts treatment minutes to billable units for timed codes (97165-97168 evaluation, 97530, 97535, 97537 treatment). Accurate time tracking is foundational.
- GO modifier disciplineAll OT services bill with GO modifier identifying occupational therapy discipline. Missing GO triggers denial.
- Plan of Care + recertification cycleMedicare requires physician-signed Plan of Care every 90 days for OT. Recertification timing must be tracked.
- KX modifier above therapy thresholdOT shares therapy threshold with SLP ($2,330 in 2025 combined). KX modifier and supporting documentation required above threshold.
- Pediatric OT + school-based billingIllinois pediatric OT may bill HealthChoice Illinois EPSDT, school-based services, or commercial. Each requires distinct workflow.
- Hand therapy + specialty OT codingHand therapy and other specialty OT carry distinct procedure codes with documentation requirements. Specialty coding depth matters.
FAQ: occupational therapy billing in Illinois.
How many occupational therapy billing providers operate in Illinois?
NPPES lists 931 occupational therapy billing organizations in Illinois, representing 4.0% of the U.S. footprint. Top concentrations are in Chicago (180), Naperville (24), Orland Park (16).
Does HealthChoice Illinois cover occupational therapy billing services?
Yes. HealthChoice Illinois covers occupational therapy billing services for eligible beneficiaries, with plan-specific authorization rules and rate structures that vary by year.
What commercial payers cover occupational therapy billing in Illinois?
All major national commercial payers cover occupational therapy billing in Illinois, including UnitedHealthcare/Optum, Aetna, Cigna/Evernorth, the dominant Illinois Blue Cross Blue Shield plan, and (where active) Humana.
Does ASP-RCM serve occupational therapy billing providers in Illinois?
Yes. ASP-RCM Solutions provides occupational therapy billing services for providers in Illinois and across all 50 states. Senior partners on every account. Request a free 30-day audit.
How do I get started?
Request a free 30-day RCM audit. We assess your current state, identify revenue leakage, and produce a written prioritized recommendations list.