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Insurer Denial Rates & Appeal Data

As of March 2026, Medicare Advantage, Medicaid managed care, and marketplace insurers must publish their prior authorization metrics. Here they are, in one place, verified against the source.

All tracked insurers

Metrics display once verified against each insurer’s posted CMS-0057-F disclosures. Collection is in progress — every published number will link to its source.

Insurer	Lines of business	PA denial rate	Appeal overturn rate
UnitedHealthcare UnitedHealth Group	Medicare Advantage · Medicaid MCO · Marketplace QHP · Commercial	PENDING	PENDING
Humana	Medicare Advantage · Medicaid MCO	PENDING	PENDING
Aetna CVS Health	Medicare Advantage · Medicaid MCO · Marketplace QHP · Commercial	PENDING	PENDING
Elevance Health Elevance Health (Anthem BCBS)	Medicare Advantage · Medicaid MCO · Marketplace QHP · Commercial	PENDING	PENDING
Kaiser Permanente	Medicare Advantage · Marketplace QHP · Commercial	PENDING	PENDING
Centene	Medicare Advantage · Medicaid MCO · Marketplace QHP	PENDING	PENDING
Cigna Healthcare	Medicare Advantage · Marketplace QHP · Commercial	PENDING	PENDING
Health Care Service Corporation HCSC (BCBS IL, TX, NM, OK, MT)	Medicare Advantage · Marketplace QHP · Commercial	PENDING	PENDING
Highmark Highmark Health (BCBS PA, WV, DE, NY)	Medicare Advantage · Marketplace QHP · Commercial	PENDING	PENDING
Florida Blue GuideWell	Medicare Advantage · Marketplace QHP · Commercial	PENDING	PENDING
Molina Healthcare	Medicare Advantage · Medicaid MCO · Marketplace QHP	PENDING	PENDING
SCAN Health Plan	Medicare Advantage	PENDING	PENDING
Devoted Health	Medicare Advantage	PENDING	PENDING
Alignment Health	Medicare Advantage	PENDING	PENDING
Blue Cross Blue Shield of Michigan	Medicare Advantage · Marketplace QHP · Commercial	PENDING	PENDING

ONLY VERIFIED CMS-0057-F ROWS DISPLAY · SEE METHODOLOGY