An organization shall not operate or offer a plan in this state unless the organization first enters into a written provider agreement with the providing attorney or attorneys. The following provisions apply to such an agreement:
(1) A provider agreement shall not contain any provision that allows the providing attorney to seek payment from a member, other than any copayments and deductibles scheduled in the agreement, in the event of nonpayment by the organization for any services that have been performed under the plan by the providing attorney; and
(2) A provider agreement shall contain a guarantee that the providing attorney will furnish plan services to plan members whether or not the providing attorney has been or will be paid under the plan. Provider agreements shall require providing attorneys to give plan members the full benefit of plan membership until the member leaves the plan or until the anniversary date of the date the plan member joined the plan, whichever comes first.