Mo. Rev. Stat. § 197.435
Any person wishing to make a complaint against a home health agency licensed under the provisions of sections 197.400 to 197.475 may file the complaint in writing with the department setting forth the details and facts supporting the complaint. If the department determines the charges are sufficient to warrant a hearing to determine whether the license of the home health agency should be suspended or revoked, the department shall fix a time and place for a hearing and require the home health agency to appear and defend against the complaint. A copy of the complaint shall be given to the home health agency at the time it is notified of the hearing. The notice of the hearing shall be given at least twenty days prior to the date of the hearing. The hearing shall be conducted by the administrative hearing commission in accordance with the provisions of chapter 621.
§ 197.435, RSMo