I know someone going through late-stage cancer treatment who, at a recent appointment with their oncologist (doctor specializing in cancer treatment), was asked

I know someone going through late-stage cancer treatment who, at a recent appointment with their oncologist (doctor specializing in cancer treatment), was asked to remove their mask so their temperature could be taken -- however the doctor themselves wasn't wearing a mask! An oncologist should know full well the weakened immune system their patients are dealing with! Like... seriously?!