insurance & payer denial patterns

Aetna, now part of CVS Health, is one of the largest commercial insurers in the U.S. Aetna uses clinical policy bulletins (CPBs) to determine coverage for specialty medications. Their prior authorization process is structured but can be navigated effectively with proper documentation.

UnitedHealthcare (UHC) is the largest commercial health insurer in the United States. UHC uses medical and pharmacy benefit policies to govern coverage, with OptumRx handling pharmacy benefits for many plans. Their prior authorization requirements are among the most detailed in the industry.

Cigna (now The Cigna Group, with Evernorth as its health services division) is a major commercial insurer with Express Scripts managing pharmacy benefits. Cigna uses coverage policy documents and National Drug Lists to determine coverage. Their process is structured but can be opaque.

Blue Cross Blue Shield is a federation of 34 independent, locally operated companies providing health insurance. Each BCBS company has its own formulary and prior authorization criteria, which means coverage can vary significantly by state and plan. BCBS collectively covers more Americans than any other insurer.

Humana is a major health insurer with a large Medicare Advantage presence. Humana's coverage decisions for specialty drugs are governed by clinical coverage policies and formulary management. Their Medicare Advantage plans follow CMS guidelines but may add additional utilization management criteria.

Anthem (now Elevance Health) is one of the largest BCBS-affiliated insurers, operating Blue Cross and Blue Shield plans in 14 states. Anthem uses clinical UM guidelines and drug-specific prior authorization criteria. Their IngenioRx pharmacy benefit manager handles pharmacy benefit drugs.

Kaiser Permanente is a unique integrated health system that functions as both insurer and provider. Kaiser operates its own hospitals, clinics, and pharmacies. Because Kaiser controls both the insurance and delivery of care, prior authorization works differently — requests are handled internally within the Kaiser system.

Centene is the largest Medicaid managed care organization in the U.S., operating through subsidiaries including WellCare, Ambetter (ACA marketplace), and various state-specific plans. Coverage criteria and formularies vary significantly by state and plan type. Centene's focus on Medicaid and low-income populations means formulary restrictions can be particularly strict.

Molina Healthcare specializes in government-sponsored health insurance programs including Medicaid, Medicare, and ACA marketplace plans. Molina operates in multiple states with coverage criteria that follow state Medicaid guidelines. Their specialty drug management is handled through various pharmacy benefit arrangements.

Medicare Part B covers physician-administered drugs (infusions, injections given in a doctor's office or outpatient setting). Coverage is determined by National Coverage Determinations (NCDs), Local Coverage Determinations (LCDs), and the drug's FDA-approved or CMS-recognized compendia indications. Part B does not have a traditional formulary — if a drug has an FDA-approved indication, it is generally covered.

Medicare Part D covers self-administered prescription drugs (oral medications, self-injectable drugs). Part D is administered through private insurance companies (PDPs and MA-PDs) that each have their own formulary, but must cover at least two drugs in each therapeutic class and all drugs in six protected classes (including cancer and HIV/AIDS drugs).

Medicaid is a joint federal-state program that provides health coverage to low-income individuals and families. Each state operates its own Medicaid program with different covered benefits, formularies, and prior authorization requirements. Most Medicaid programs are administered through managed care organizations (MCOs) like Centene, Molina, and UnitedHealthcare Community.

CVS Caremark is the largest pharmacy benefit manager (PBM) in the U.S., managing prescription drug benefits for commercial insurers, Medicare Part D plans, and Medicaid managed care. CVS Caremark makes formulary decisions, manages prior authorizations for pharmacy benefit drugs, and operates specialty pharmacy services through CVS Specialty.

Express Scripts, now part of Cigna's Evernorth division, is one of the three largest PBMs in the U.S. Express Scripts manages pharmacy benefits including formulary management, prior authorization, and specialty pharmacy services. They operate Accredo as their specialty pharmacy for high-cost medications.

OptumRx is UnitedHealth Group's pharmacy benefit manager, serving UnitedHealthcare members and external health plan clients. OptumRx manages formulary, prior authorization, and specialty pharmacy services. They operate Optum Specialty Pharmacy for high-cost medications and integrate closely with UnitedHealthcare's medical benefit management.