Missouri prompt pay law dental

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Under Mo. Rev. Stat. §376.383; §376.384; §376.427, the Missouri payment deadline is 45 processing days (electronic claims only); No prompt-pay protection (paper claims are outside §376.383). If the carrier has not paid by the forty-fifth processing day, it owes "one percent interest per month and a penalty in an amount equal to one percent of the claim per day," calculated on the unpaid balance as of that day; on claims where the amount owed exceeds thirty-five thousand dollars the 1 percent per day penalty is capped at 100 days and 2 percent per month runs afterward (§376.383.6(1)). Dental applicability: Dental payers are inside, but by a route worth knowing. A self-funded private-employer (ERISA) plan is generally beyond this statute's reach and runs on the federal claims-procedure clock instead — but that comes from the courts reading 29 U.S.C. § 1144, not from its text, and it is not categorical: a self-funded governmental or church plan is not an ERISA plan at all, § 1144(b)(6) leaves multiple employer welfare arrangements open to state insurance law, and nothing in § 1144 bars a state from reaching the third-party administrator or the network contract.