How to File a Complaint Against Humana: DOI, EBSA, CMS, OPM, and BBB

Filing an appeal with Humana directly is the first step when a claim is denied. But when internal appeals fail — or when Humana engages in patterns of bad faith, systematic delays, or improper denials — escalating to regulators creates legal and reputational pressure that formal appeals alone don't generate. Here is a complete guide to every regulatory and consumer protection channel available when Humana has denied or mishandled your claim.

Step 1: State Department of Insurance (DOI)

For commercial health insurance — individual marketplace plans and fully insured employer group plans — Humana is regulated by the insurance department of the state where your policy was issued. State insurance commissioners have the authority to:

• Investigate Humana's claim handling practices
• Order Humana to reprocess improperly denied claims
• Impose fines for systematic violations of state insurance law
• Publish complaint data that affects Humana's market standing

How to file: Visit your state's Department of Insurance website and search for "insurance complaint" or "consumer complaint." Most states have online complaint portals. Provide your policy information, claim details, denial letters, and a clear description of the issue.

What it accomplishes: State DOI complaints create a formal government record. Humana typically assigns a dedicated team to respond to DOI complaints — the responsiveness often exceeds what you get through Humana's own customer service. Many DOI complaints result in claim resolution without formal regulatory action.

States where Humana has large market presence (high DOI complaint volume): Florida, Texas, Kentucky, Ohio, Illinois, Georgia, and other states with significant Humana Medicare Advantage and commercial enrollment.

Important limitation: State DOI does NOT have jurisdiction over self-funded ERISA employer plans. If your health insurance is provided by a large employer through a self-insured plan, the DOI cannot regulate that plan. Ask your HR department whether your plan is self-funded (subject to ERISA) or fully insured (subject to state regulation).

Find your state DOI at the National Association of Insurance Commissioners (NAIC) directory: naic.org/state_web_map.htm.

Step 2: Department of Labor — EBSA (For ERISA Employer Plans)

If you have health insurance through an employer and the plan is self-funded (self-insured), federal ERISA law — not state insurance law — governs your plan. The regulator is the Employee Benefits Security Administration (EBSA), a division of the U.S. Department of Labor.

EBSA handles complaints about:

• Improper denial of ERISA-covered benefits
• Failure to follow the plan's own terms
• Lack of transparency (failing to provide plan documents, SPDs, claims files)
• Mental Health Parity Act (MHPAEA) Explained" class="auto-link">MHPAEA (mental health parity) violations in employer plans
• COBRA violations

How to file:

• Online: askebsa.dol.gov
• Phone: 1-866-444-EBSA (1-866-444-3272)
• Mail: Your regional EBSA office (find at dol.gov/agencies/ebsa)

What EBSA can do: EBSA investigators can contact Humana (as the plan administrator) to investigate the complaint, compel production of plan documents, and in some cases file lawsuits against plans that systematically violate ERISA. EBSA complaint investigations sometimes result in claim resolution.

ERISA private right of action: If EBSA doesn't resolve your issue, ERISA gives you the right to file suit in federal district court after exhausting internal appeals and, in most cases, External Independent Review: Complete Guide" class="auto-link">external review. Consult an ERISA attorney for high-value claims.

Step 3: CMS — For Humana Medicare Advantage Complaints

For Humana Medicare Advantage members, the primary federal regulator is the Centers for Medicare & Medicaid Services (CMS). CMS has authority to sanction, fine, and terminate Medicare Advantage contracts for insurers that systematically violate coverage rules.

How to file CMS complaints:

• Phone: 1-800-MEDICARE (1-800-633-4227)
• Online: medicare.gov (submit a complaint through the Medicare beneficiary portal)
• Written: Centers for Medicare & Medicaid Services, 7500 Security Blvd., Baltimore, MD 21244

What CMS complaints address:

• Humana denying coverage for services original Medicare covers (violation of MA parity requirements)
• Improper Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization denials that don't align with coverage guidelines
• Failure to meet CMS appeal timeframes
• Network adequacy failures
• Systematic patterns of inappropriate denials

SHIP Counselors: Every state has a State Health Insurance Assistance Program (SHIP) providing free counseling to Medicare beneficiaries. SHIP counselors can help you file complaints and navigate the Medicare Advantage system. Find your SHIP at shiphelp.org.

CMS Star Ratings: Humana's Medicare Advantage plans receive CMS Star Ratings based on quality measures — including measures related to appeals and complaints. A formal CMS complaint affects these ratings, which has real financial consequences for Humana (plans with lower star ratings receive reduced bonus payments from CMS).

Step 4: OPM — For Federal Employee Health Benefits (FEHB)

If you are a federal employee, retiree, or eligible family member whose health insurance is provided through the Federal Employees Health Benefits (FEHB) Program, Humana's federal product line is overseen by the Office of Personnel Management (OPM) rather than state DOI or CMS.

FEHB plans must follow OPM's regulations and the terms of the FEHB contract. OPM handles complaints about FEHB plan administration.

How to file:

• Phone: 1-888-767-6738
• Online: opm.gov/healthcare-insurance

Humana offers several FEHB plans, including some Medicare Advantage plans for Medicare-eligible federal retirees. If your Humana FEHB plan denied your claim, the appeal process follows FEHB procedures, and OPM is your regulatory escalation point.

Step 5: Better Business Bureau (BBB)

The Better Business Bureau is not a regulatory agency — it cannot compel Humana to pay a claim. However, BBB complaints serve as a reputational escalation tool:

• Humana typically assigns a customer relations representative to respond to BBB complaints
• BBB complaints become public record and affect Humana's BBB accreditation and rating
• The formal response requirement from Humana often generates a more senior-level review of your claim

How to file: bbb.org — search for Humana Inc. (headquartered in Louisville, KY, so the Louisville-area BBB chapter oversees the complaint initially).

BBB works best for: Billing disputes, customer service failures, unfulfilled promises, and situations where a personal escalation path might resolve the issue. For clinical coverage denials, regulatory channels (DOI, EBSA, CMS) are more powerful.

State Attorney General

Several state attorneys general have investigated and taken action against health insurers for deceptive claims handling practices. If Humana's denial involves misrepresentation, deception, or a pattern of consumer harm, a complaint to your state attorney general's consumer protection division may add pressure. Find your state AG at naag.org.

The No Surprises Act Help Desk

If your complaint involves a surprise bill from an out-of-network provider in circumstances covered by the No Surprises Act, file at:

• CMS No Surprises Help Desk: 1-800-985-3059
• Online: cms.gov/nosurprises

Building Your Escalation Strategy

The most effective approach combines multiple complaint channels simultaneously:

1. File the internal Humana appeal (required to preserve further rights)
2. File a DOI or EBSA complaint (depending on plan type) simultaneously
3. File a CMS complaint if Humana Medicare Advantage
4. File a BBB complaint for reputational pressure
5. Consult an attorney for high-value claims or systematic violations

You don't have to choose just one. Simultaneous regulatory complaints across multiple agencies create pressure from multiple directions and often accelerate resolution.

Fight Back With ClaimBack

ClaimBack helps you prepare both the formal appeal and the regulatory complaint documentation needed to challenge Humana's denial across every available channel.

Start your appeal at https://claimback.app/appeal.

Related Reading

• How to Write an Insurance Appeal Letter
• Internal vs. External Insurance Appeal
• Common Reasons Insurance Claims Are Denied