Market overview
California is the country's largest commercial insurance market and a textbook case of Blue complexity — two entirely separate Blue licensees operate here — alongside the largest Kaiser Permanente presence in the nation.
Major commercial carriers
The national carriers all operate in California — UnitedHealthcare (behavioral health through Optum), Aetna, and Cigna (behavioral health through Evernorth) — competing statewide alongside the Blues and Kaiser.
Profiles: UnitedHealthcare / Optum · Aetna · Cigna / Evernorth
The state's Blues
Anthem Blue Cross
California's Anthem-brand Blue (Elevance).
See the Anthem / Elevance / Carelon guideBlue Shield of California
A separate, independent licensee — California is the clearest example that a single state can have two different Blues.
Regional & specialty networks
Kaiser Permanente
California is Kaiser's largest presence; behavioral health is largely delivered in-house through the Permanente medical groups, so external facility contracting typically happens via single-case agreements.
More in the West
Want to know which payers TierBench holds actual rate data on?
See Payer CoverageContracting with payers in California?
Book a 20-minute call and we'll walk through where your rates stand against the market — or explore the data yourself.