You may file an appeal or grievance (complaint) orally or in writing. Call 612-596-1300 Monday through Friday, 9 a.m.Notice of Hennepin Healthcare's grievance procedure, as well as the address and telephone number of the Minnesota Office of Health Facility. Edu, or fill out this form for more information. When to file in Hennepin County Court. Generally, you must file your claim in the county where the person or business you are suing (the defendant) is located. Information to get started Phone: 612-348-3000 Open all Find detailed price information for all services and procedures at Hennepin Healthcare to make our prices as transparent as possible. You have one year after the unfair treatment to file a complaint. To assist you in addressing your complaint, you must complete this form including the Consent to. Release.