patient portal, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            List<patient> pati = new List<patient>();
            pati.Add(new patient(){ID =1,patientname = "james",facility="F1",careprovider = "nurse",testresults = 0, authorizedperson = "friend"});
            pati.Add(new patient(){ID =2,patientname = "lewis",facility="F2",careprovider = "nurse2",testresults = 1, authorizedperson = "friend1"});
            pati.Add(new patient(){ID =3,patientname = "mina",facility="F3",careprovider = "nurse3",testresults = 0, authorizedperson = "friend2"});
            pati.Add(new patient(){ID =4,patientname = "manju",facility="F1",careprovider = "nurse1",testresults = 0, authorizedperson = "relatives"});
            pati.Add(new patient(){ID =5,patientname = "toni",facility="F4",careprovider = "nurse4",testresults = 1, authorizedperson = "neighbour"});
            pati.Add(new patient(){ID =6,patientname = "ron",facility="F1",careprovider = "nurse3",testresults = 1, authorizedperson = "parents"});

patient.test(pati, pat => pat.testresults==0);
            patient.test(pati, pat=>pat.facility=="F1");
           }
                    }
    }
    public delegate bool patientresults(patient patien);
    public class patient
    {
    public int ID{get;set;}
    public string patientname{get;set;}
    public string facility{get;set;}
    public string careprovider{get;set;}
    public int testresults{get;set;}
    public string authorizedperson{get;set;}
    
    
   public static void test(List<patient> listpatient,patientresults testfail)
    {
    foreach (patient p in listpatient)
    if(testfail(p))
    {
    Console.WriteLine("Refer to Chemotherapy" + " " + p.patientname );
    }else
    {
    Console.WriteLine("Refer to Medication" + " " + p.patientname );
    }
}
}

Show compiler warnings [ + ] Show input
Compilation time: 0,12 sec, absolute running time: 0,08 sec, cpu time: 0,08 sec, average memory usage: 15 Mb, average nr of threads: 4