R.I. Gen. Laws § 27-18-45
No accident and sickness insurer pursuant to this chapter, or any other insurer offering and/or insuring health services on a prepaid basis as defined in § 42-62-4(7), shall engage in any retaliation or retribution, directly or indirectly, or shall terminate or modify the terms of a medical service agreement that it maintains with a physician or other medical services provider, because the physician or other provider reports or is about to report verbally or in writing, to a public body, a regulatory agency, a subscriber or member of the insured, the family or heirs or personal representative of the subscriber or member or to any other person or public or private agency a violation by the insurer of a subscriber or membership agreement, a law, rule or regulation promulgated under the laws of this state.
R.I. Gen. Laws § 27-18-45