Maryland Code, Commercial Law § 16-603

After the filing and mailing of the notice of lien, if any person makes any payment to the patient, his attorney, heirs, or personal representative as compensation for the injuries, without paying the hospital the amount of the lien as provided in § 16-601 of this subtitle or as much of the lien as may be satisfied by any money due under any final judgment or under any compromise or settlement agreement after paying the amount of any prior lien, he is liable to the hospital for a period of one year from the date of making payment to the patient, his attorney, heirs, or personal representative.