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HFS Medicaid runs through six HealthChoice Illinois plans. NGS processes Medicare Part A and B out of Indianapolis, sharing coverage policy with Minnesota and Wisconsin. Blue Cross Blue Shield of Illinois sits on both the commercial and Medicaid side of the table. We bill correctly against all four, every time.
A Medicaid program still working through a managed care overhaul, a Medicare contractor that answers to three states, and one commercial carrier that plays both sides.
Illinois adults covered through the ACA Medicaid expansion group, about 22% of the state's Medicaid population
HealthChoice Illinois MCOs now credentialing providers, up from five as recently as 2022
Part B physicians and providers NGS bills for across Illinois, Minnesota, and Wisconsin
FIDE SNP carriers now billing for Illinois' dual-eligible members, replacing the old MMAI program as of January 1, 2026
HFS runs Medicaid for roughly 3 million residents through six managed care organizations: Aetna Better Health, Blue Cross Blue Shield of Illinois, CountyCare, Meridian Health Plan, Molina Healthcare, and YouthCare. Blue Cross Blue Shield of Illinois also holds the state's largest commercial book. The same logo can mean two different adjudication rulebooks, depending on which card the patient hands you.
Medicare doesn't run its own office here either. NGS, a contractor based in Indianapolis, processes Part A and B claims for Illinois alongside Minnesota and Wisconsin, and writes local coverage policy for all three states at once. A code that clears in Milwaukee doesn't always clear in Springfield.
Each one traces back to a specific statute, contract, or workforce number, not a generic RCM complaint.
Under 215 ILCS 5/364.3(f), an insurer that misses the 24-hour (urgent) or 72-hour (routine) electronic prescription prior auth deadline must treat it as approved. Furthermore, under Illinois' 2026 Healthcare Protection Act, step therapy is banned and initial 72-hour inpatient mental health care cannot require prior authorization at all
NGS drafts its local coverage determinations for Illinois, Minnesota, and Wisconsin together. A code that clears in one of those states doesn't automatically clear in another, and the LCD rarely explains why.
Illinois trains 237 primary care residents annually, and 45.2% leave the state after graduating. The resulting shortfall pushes more visits onto NPs and PAs, and payers scrutinize that supervision documentation harder every year.
The Telehealth Act guarantees permanent payment parity for behavioral health and substance use visits. Parity for every other specialty is locked in only through January 1, 2028, then it's back to negotiation.
HFS standardized the provider roster template across all six HealthChoice Illinois MCOs effective February 1, 2026. Anything filed on the old format after January 31 gets rejected outright.
Illinois hospital operating margins fell 0.6% year over year through October 2025, even as gross margins rose 8.2% and patient volume climbed 3.6%. More visits alone isn't fixing the collections problem.
We match a documented Illinois process to each issue, not a one-size template.
A payer sits on a prior auth past the 24-hour or 72-hour window.
We log the submission timestamp on every request and flag any HealthChoice Illinois or commercial plan that runs past its statutory deadline, then bill it as deemed-approved under 215 ILCS 5/364.3(f) instead of waiting on a denial.
A code that's clean in Minnesota gets kicked back in Illinois.
Our coders check the NGS Jurisdiction 6 LCD against the actual state of service before submission, rather than assuming a code that worked on a Wisconsin claim will clear here too.
An NP or PA visit gets flagged for missing supervision detail.
We pull the exact denial reason code the payer used, correct the supervision or telehealth modifier it's actually asking for, and resubmit inside that payer's own appeal window.
A behavioral health telehealth claim gets billed at a lower, non-parity rate.
We confirm which service falls under the Telehealth Act's permanent parity protection before it's coded, so behavioral health and substance use visits are billed at the in-person rate every time.
A practice's roster falls out of date under the new HFS format
We keep every provider's roster entry current across all six MCOs under the standardized template, so a location change or new hire never stalls a batch of claims.
Staffed and priced around your actual payer mix.
Claims built and submitted correctly whether the payer is a HealthChoice Illinois MCO, NGS Medicare, or a commercial plan.
Certified coders who check Jurisdiction 6 LCDs before a claim goes out, not after it comes back.
Enrollment and revalidation through IMPACT and all six current HealthChoice Illinois MCOs, kept current under the new roster format.
End-to-end management built around Illinois's MCO transitions and FIDE SNP changes, not a generic national workflow.
We confirm active MCO, FIDE SNP, or commercial enrollment before the appointment, not after the claim bounces.
We track the 24-hour and 72-hour statutory clocks so approvals land before treatment starts.
We work the specific denial code an Illinois payer used, not a generic appeal letter.
Reconciled against each MCO's own remittance format, since no two post the same way.
Ongoing follow-up on aged claims, built for practices carrying a heavy Medicaid or safety-net mix.
We adjust the process to the specialty, not the other way around.
Billed under the Telehealth Act's permanent parity rule, in a state where 83 of 102 counties carry a mental health shortage designation.
Heavy prior authorization load paired with high visit counts, both tracked against the 24 and 72-hour statutory response clocks.
Absorbing shortage-area visit volume across physician, NP, and PA supervision documentation.
Recurring high-cost procedures that draw the heaviest MCO utilization review.
Complex diagnostic and treatment codes checked against Jurisdiction 6 coverage policy before submission.
High-volume specialties billed under the same statewide coverage rules as everyone else, where speed on routine claims matters most.
Eligibility Check — confirm active MCO, FIDE SNP, or commercial coverage before the visit
Confirm active MCO, FIDE SNP, or commercial coverage before the visit
Check the claim against the right Jurisdiction 6 or Medicaid coverage policy
Match charges to payer-specific requirements before submission
Formatted for each MCO and NGS Medicare's own system
Checked line by line against the remittance advice
Root-cause the exact denial code, then resubmit
Filed inside each payer's own appeal window, not a generic one
Aged claims worked on a schedule, not left to sit
What's paid, what's pending, what's stuck
Illinois trains only 237 primary care residents a year, and 45.2% of them leave the state after finishing. The providers who stay are already stretched thin, which makes it harder to also keep in-house billing staff current on six MCO rosters, a new HFS enrollment format, and Medicare coverage policy written jointly for three states. Meanwhile, statewide hospital operating margins fell 0.6% year over year through October 2025, even as patient volume grew, proof that more visits alone doesn't fix collections. Outsourcing to a team that already tracks these specific rules gives that time back to patient care.
Yes. We hold active credentialing and billing relationships with Aetna Better Health, Blue Cross Blue Shield of Illinois, CountyCare, Meridian, Molina, and YouthCare, so a patient's plan choice doesn't change how quickly your claim moves.
We track every prescription submission against the 24-hour (urgent) and 72-hour (routine) statutory response windows under 215 ILCS 5/364.3(f) to enforce deemed approval. Additionally, for medical and behavioral health claims, we enforce the 2026 Healthcare Protection Act (HB 5395) rules—ensuring plans do not illegally impose step therapy or unauthorized initial 72-hour mental health care reviews
Yes. NGS is the Medicare Administrative Contractor for Jurisdiction 6, covering Illinois alongside Minnesota and Wisconsin. We check the Jurisdiction 6 local coverage determination for a code before submission, since a code that clears in one of those states doesn't always clear in another.
It depends. The Telehealth Act guarantees permanent payment parity for behavioral health and substance use visits. Parity for other specialties is currently locked in only through January 1, 2028. We flag which of your services fall into which category before they're coded.
Timelines vary by MCO and by how complete your IMPACT application is. We keep your roster current under the standardized format HFS put in place on February 1, 2026, which is one of the more common reasons for credentialing stalls.
Yes. We work with practices across counties that carry HPSA designations, including the primary care and behavioral health shortage areas that make up the majority of the state.
Yes. We rebuild credentialing, EDI, and ERA/EFT connections around the new entity across all six MCOs and NGS Medicare, so a sale or restructuring doesn't stall your cash flow.
A2Z Billings supports Illinois practices remotely, with certified coders and billers who track HFS Medicaid, Jurisdiction 6 Medicare, and the state's prior authorization and telehealth rules every day.
