Writing content of datatable to the database

I am trying to write the content of a data table back to a SQL Server table.  It writes the first row, but on the second row, I get following error:

"Procedure or Function InsertHospitalInvoice has too many arguments specified."

I have reviewed everything and I cannot see why I am getting this error.  Below is my code to call the stored procedure InsertHospitalInvoice.  I've also provided a copy of the table design as well the Stored Procedure InsertHospitalInvoice in the attached word document.  

Can anyone see where my bug is.  Your help is greatly appreciated,  Thank you stored-procedure-and-Table-desig.doc

Sub InsHospInvData()
        Dim cmdData As New SqlCommand()

        Try
            conn.Open()
            cmdData.Connection = conn
            For Each drow In dtHospInvData.Rows
                cmdData.CommandText = "InsertHospitalInvoice"
                cmdData.CommandType = CommandType.StoredProcedure
                cmdData.Parameters.AddWithValue("@HID", drow.Item("HID"))
                cmdData.Parameters.AddWithValue("@DeptCode", drow.Item("DeptCode"))
                cmdData.Parameters.AddWithValue("@BillDate", drow.item("BillDate"))
                cmdData.Parameters.AddWithValue("@InTests", drow.item("InTests"))
                cmdData.Parameters.AddWithValue("@InAmount", drow.item("InAmount"))
                cmdData.Parameters.AddWithValue("@OutTests", drow.item("OutTests"))
                cmdData.Parameters.AddWithValue("@OutAmount", drow.item("OutAmount"))
                cmdData.Parameters.AddWithValue("@OtherTests", drow.item("OtherTests"))
                cmdData.Parameters.AddWithValue("@OtherAmount", drow.item("OtherAmount"))
                cmdData.Parameters.AddWithValue("@SvDesc", drow.Item("SvDesc"))
                cmdData.ExecuteNonQuery()
            Next
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        Finally
            conn.Close()
        End Try
    End Sub

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