Medicaid Managed Care Billing Disputes: Your Rights with MCOs

MCO vs. Fee-for-Service Medicaid

More than 70% of Medicaid beneficiaries nationwide are enrolled in managed care. If you have Medicaid through a private insurance company (common names include Molina Healthcare, Centene/WellCare, Aetna Better Health, AmeriHealth Caritas, and others), you are in Medicaid managed care—and your appeals process differs significantly from traditional fee-for-service Medicaid.

Key differences that affect billing disputes:

Your MCO must send you a member handbook explaining your rights and the appeals process. If you don't have it, request it from your MCO or your state Medicaid agency.

Understanding Your Notice of Action

When your MCO denies, reduces, suspends, or terminates a service or benefit, it must send you a written Notice of Action (NOA). The NOA is your starting point for any dispute.

The NOA must contain:

• The specific action being taken (denial, reduction, suspension, termination)
• The reason for the action, including the specific plan or regulation cited
• Your right to appeal and the deadline for filing
• Your right to a state fair hearing
• Your right to request aid paid pending (continued benefits) if you file within 10 days
• Information about free legal assistance if you can't afford a representative

If your MCO takes an action without sending you a proper NOA, that itself is a violation of federal Medicaid rules—cite it in your appeal.

Filing Your MCO Internal Appeal

You have 60 days from the NOA date to file an internal appeal with your MCO (some states give more time—check your handbook). Steps:

1. Get your denial in writing if you only received a phone call. Call your MCO and request the written NOA.
2. File in writing (phone appeals can get lost; written appeals create a paper trail). Mail via certified mail or submit online through your MCO's member portal.
3. State the specific error: What was denied, why you believe the denial is wrong, and what coverage or evidence supports your position.
4. Include supporting documentation: Physician letter of medical necessity, medical records, prior auth approvals, prescription history, or specialist referral letters.
5. Request an expedited appeal if the standard 30-day timeline would jeopardize your health. Expedited appeals must be decided within 72 hours.

Your MCO must decide your standard appeal within 30 days (or 45 days in some states with approved extensions). If the MCO misses this deadline, you may be able to escalate directly to a fair hearing.

Aid Paid Pending: Keep Services While You Appeal

This is one of the most important and least-known Medicaid protections. If your MCO is reducing or terminating a service you are currently receiving, you can request that the service continue at the current level while your appeal is pending—this is called aid paid pending or continuation of benefits.

To invoke this right:

• You must file your appeal within 10 days of the NOA date (or before the effective date of the action, whichever is later)
• In your appeal, explicitly state: "I am requesting continuation of benefits pending the outcome of this appeal."
• Your MCO cannot reduce or stop the service while the appeal is pending

If you ultimately lose your appeal, you may owe back the cost of services provided during the pending period. In most states, however, the state cannot seek repayment from a Medicaid beneficiary for aid paid pending—check your state's rules.

The State Fair Hearing Process

A state fair hearing is an administrative hearing before a neutral hearing officer employed by your state—not by the MCO. It is one of the strongest protections available to Medicaid beneficiaries.

When you can request a fair hearing:

• After your MCO denies your internal appeal
• Simultaneously with your MCO appeal (you don't have to wait for the MCO to finish)
• If your MCO fails to decide your appeal within the required timeframe
• Any time you disagree with an action that affects your Medicaid benefits

The deadline to request a fair hearing is 120 days from the NOA date in most states, though some states have shorter windows. File your fair hearing request with your state Medicaid agency—not your MCO.

At the hearing, you (or a representative—an attorney, family member, or patient advocate) present evidence, call witnesses, and cross-examine the MCO's evidence. The hearing officer's decision is binding on the MCO. If you disagree with the fair hearing decision, you can appeal to state court.

Formulary Exceptions for Prescription Drugs

If your MCO's formulary (drug coverage list) doesn't include a medication your doctor has prescribed—or places it on a tier that makes it unaffordable—you can request a formulary exception.

Steps to request a formulary exception:

1. Your prescribing physician submits a written exception request to your MCO's pharmacy benefit unit, documenting why the non-formulary drug is medically necessary (e.g., the formulary alternatives were tried and failed, or they are contraindicated for you).
2. For urgent requests, the MCO must decide within 24 hours. For standard requests, 72 hours is typical.
3. If denied, the denial triggers an appeal right—use your MCO's appeal process and include additional clinical documentation.
4. If the formulary exception is denied through the MCO's internal process, request a state fair hearing.

Federal Medicaid rules also allow beneficiaries to request coverage of a brand drug when a generic is on the formulary but is medically inappropriate. Your physician must certify the medical necessity of the brand drug.

Key Deadlines and Contacts

• Your MCO Member Services: Number on your Medicaid insurance card
• Your state Medicaid agency: Search "[your state] Medicaid agency" or visit medicaid.gov/state-overviews for contact links
• Medicaid.gov: medicaid.gov/medicaid/beneficiary-protections for federal beneficiary rights information
• CMS Helpline: 1-877-267-2323

• Medicaid.gov — Managed Care Overview
• Medicaid.gov — Beneficiary Appeals Rights
• CMS — Managed Care Fair Hearing Rights
• National Health Law Program — Medicaid MCO Appeals Guide