US State Medical Billing & RCM Directory

Each state page collects the operational reference data a biller or RCM manager needs when routing a claim or prior authorization in that jurisdiction: the Medicaid program name and provider portal, the state FFS payer ID where one exists, the dominant commercial payers ranked by lives covered, the BCBS licensee, the Medicaid MCO rollup, state-specific surprise-billing and prior-auth regulations with statute citations, the top health systems, and the state Medicaid timely filing window.

State pages outlink to the authoritative .gov or state-contractor portal for every operational field — not as a crutch, but because payer IDs, fee schedules, and regulations are versioned and state-owned. Treat the data on these pages as a starting point; always verify against the member ID card and the state's current provider manual before submission. Reviewer bylines and last- reviewed dates are surfaced on every leaf.