R.I. Gen. Laws § 9-3-5
No hospital lien shall be effective unless a written notice containing the name and address of the injured person, the date of the accident, the name and location of the hospital, and the name of the person or persons, firm or firms, corporation or corporations alleged to be liable to the injured party for the injuries received shall be filed in the office of the city or town clerk in which the hospital is located, prior to the payment of any money to the injured person, his or her attorneys, or legal representatives as compensation for the injuries; nor unless the hospital shall also mail, postage prepaid, a copy of the notice with a statement of the date of filing thereof to the injured person and to the person or persons, firm or firms, corporation or corporations alleged to be liable to the injured party for the injuries sustained prior to the payment of any money to the injured person, his or her attorneys, or legal representative as compensation for the injuries. The hospital shall mail a copy of the notice to any insurance carrier which has insured the person, firm, or corporation against such liability.
R.I. Gen. Laws § 9-3-5