Price of Gastroscopy (OGD)

Hi Folks, not sure if this is right place to post my query or not but anyway I am posting on behalf of my wife's friend, she went to her doctor recently with problem with her gut and she has been refered for Gastroscopy (OGD), she has very little English and never asked how much it would cost, I did tell her to go back to the hospital and get the info but so far she has not contacted the hospital. She dosen't have any health insurance or medical card as she is in full employment. I tried to do a search on line but I cannot find anything relating to the cost, can anyone advise on this.