Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 176O, § 9A

(a)(i) limits the ability of the carrier to introduce or modify a select network plan or tiered network plan by granting the health care provider a guaranteed right of participation; (ii) requires the carrier to place all members of a provider group, whether local practice groups or facilities, in the same tier of a tiered network plan; (iii) requires the carrier to include all members of a provider group, whether local practice groups or facilities, in a select network plan on an all-or-nothing basis; or (iv) requires a provider to participate in a new select network or tiered network plan that the carrier introduces without granting the provider the right to opt-out of the new plan at least 60 days before the new plan is submitted to the commissioner for approval; or

(d) limits the ability of either the carrier or the health care provider from disclosing the allowed amount and fees of services to an insured or insured's treating health care provider.

(e) limits the ability of either the carrier or the health care provider from disclosing out-of-pocket costs to an insured.