Arizona runs its Medicaid program, AHCCCS, almost entirely through contracted health plans, and it enforces some of the tightest filing rules in the country. That makes plan-level participation and the calendar the two gates on getting paid, and both are things practices most often assume are handled. Medical billing services in Arizona start by confirming them, provider by provider, plan by plan and claim by claim.
AHCCCS Complete Care, ALTCS and the RBHAs
Most AHCCCS members are in a Complete Care plan that integrates physical and behavioral health, chosen from the contractors serving their geographic service area: Central for Maricopa, Pinal and Gila, South for Pima and the southern counties, North for the rest. Members who need long-term care are in the Arizona Long Term Care System with its own contractors, and members with a serious mental illness determination, children in foster care and some others still route behavioral health through a Regional Behavioral Health Authority. Each is a separate contract with a separate roster, so a provider loaded with Mercy Care for Complete Care is not automatically loaded with Mercy Care as an RBHA. The AHCCCS Online portal shows which line and plan a member is in on the date of service, and that determines where the claim goes.
APEP enrollment and credentialing in Arizona
AHCCCS enrollment lives in the AHCCCS Provider Enrollment Portal, APEP, which handles initial applications, modifications and revalidation. Revalidation runs on a four-year cycle, with 90 days from the notice to complete it and termination as the consequence for missing it. Since March 2026 the portal has replaced its old correspondence address with a contact step that names a Provider, a Biller and a Credentialist and lets each choose email-only delivery. That is the quirk: if the credentialist listed is a former employee, the revalidation notice goes nowhere and the first sign of trouble is every Complete Care plan denying at once. We list ourselves as the biller contact, keep the credentialist current, and hold the revalidation date per provider.
APEP registration does not make a provider billable to any plan. Each Complete Care contractor has its own participation agreement and its own credentialing, and a provider new to the South GSA needs both with each plan in it. Medicare Part B in Arizona is handled by Noridian as the Jurisdiction F contractor through PECOS. BCBSAZ, Banner and the national plans pull from CAQH ProView, so we re-attest the profile before applying. The Arizona Medical Board renews physician licenses every other year on or before the birthday, and that date sits on the same calendar as revalidation and plan re-credentialing, with status reported by payer. Our credentialing service runs the whole sequence per provider.
Six months, then twelve: the AHCCCS filing rule
AHCCCS fee-for-service claims must be received within six months of the date of service, and must reach clean-claim status within twelve months, or AHCCCS is not liable for payment. The Complete Care plans set their own limits in the same spirit. A claim that goes out in month five and bounces twice can still expire, which is why AHCCCS corrections are worked as a dated queue rather than as they surface.
Prompt pay, SOONBDR and telehealth parity
Arizona Revised Statutes 20-3102 gives a state-regulated insurer 30 days to adjudicate a clean claim and 30 more to pay the approved portion, with interest at the legal rate when it is late. Self-funded employer plans are exempt, so we mark every payer before follow-up begins. Arizona's Surprise Out-of-Network Billing Dispute Resolution program, run by the Department of Insurance and Financial Institutions, handles qualifying out-of-network bills on state-regulated plans, and the federal No Surprises Act covers the rest. Arizona also requires state-regulated plans to cover telehealth at parity with in-person care, which matters for practices serving Yuma, Flagstaff and the tribal communities remotely.
Workers' compensation under the Industrial Commission
Arizona workers' compensation is a private market, and physician bills are paid under the Industrial Commission of Arizona's Physicians' Fee Schedule, which is RBRVS-based and updated each May. Bills go to the employer's carrier or self-insured administrator with the claim number and authorization on file. We bill on the schedule year that applied on the date of service and reconcile the payment against it.
Medicare Advantage and winter visitors
Arizona practices carry a large Medicare Advantage population, and Advantage plans authorize on their own medical policy rather than Medicare's. Authorizations are tracked to approval with expiry dates watched, and denials are appealed against the plan's policy. From November to April the Valley and Tucson also fill with winter visitors on out-of-state plans, which means more network checks, unfamiliar filing limits and more secondary claims. We verify network status before every winter-visitor appointment and file the secondary the same week the primary pays.
Phoenix and Tucson groups
Groups adding sites across Maricopa and Pima counties often run under more than one tax ID with BCBSAZ contracts negotiated at different times. We configure payers per site, reconcile each payment against the contract that applies there, and report collections per location. A free billing audit shows you what that report looks like on your own remittances.
AHCCCS
AHCCCS members are enrolled with a Complete Care plan in their geographic service area, with long-term care members in ALTCS and certain populations routed through a Regional Behavioral Health Authority. Registration with AHCCCS through APEP is necessary but does not by itself make a provider billable to any plan.
- Program
- AHCCCS
- Administered by
- Arizona Health Care Cost Containment System
- Managed care
- AHCCCS Complete Care plans by geographic service area (Arizona Complete Health, Banner-University Family Care, Care1st, Health Choice, Mercy Care, Molina and UnitedHealthcare Community Plan), ALTCS contractors, and the Regional Behavioral Health Authorities
Payers We Work With in Arizona
- Blue Cross Blue Shield of Arizona
- UnitedHealthcare
- Aetna
- Cigna
- Humana
- Banner Health plans (Banner|Aetna and Banner Medicare Advantage)
- AHCCCS Complete Care plans
Not an exhaustive list, and not a claim of network participation on your behalf. It is the payer mix we are set up to work in Arizona.
Services Available to Arizona Practices
Billing in Arizona: Common Questions
Yes, including registration and revalidation through the AHCCCS Provider Enrollment Portal and participation with the Complete Care plans in your geographic service area, tracked separately per provider and per plan, with the member’s plan confirmed at eligibility before the claim goes out.
AHCCCS revalidates every provider on a four-year cycle through APEP and gives 90 days from the notice to finish. Missing the date terminates the enrollment, which stops every Complete Care plan at once. We hold the date per provider and start the revalidation when the notice arrives, not when the deadline is close.
Filing within six months only preserves the claim. AHCCCS also requires it to reach clean status within twelve months of the date of service, so a claim filed at month five that needs two corrections can still expire. We work AHCCCS corrections as a dated queue for that reason.
Yes, worked as commercial plans against their own medical policy, which is what an appeal is judged on, with authorizations tracked to approval and expiry. UnitedHealthcare, Humana, BCBSAZ and Banner carry most of the Advantage members we see in Maricopa and Pima counties.
Yes. ALTCS contractors and the Regional Behavioral Health Authorities are tracked as separate payers from the Complete Care plans, with participation confirmed per provider for each line the practice bills and the member’s line identified at eligibility.
A weekly report from your named account manager covering charges, payments, denials by reason code and A/R by payer and by location, drawn from your own practice management system so the numbers match what you see.

