It's because of science that you even know what appendicitis even is, and because of science we are able to remove the appendix when the disease is properly diagnosed.
If you think doctors are the number one cause of death in the world, then I hope you don't ever visit your doctor, lest you be a hypocrite. Next time you get a chest pain, or have trouble breathing, be sure to pray it away.
Next time you want to go on a road trip to visit your family, try praying yourself there, or just walking, instead of taking a plane or driving.
Next time you want to put the blame on a mere method of understanding the universe, instead of your ordinary imperfect human, just scream it out your front door instead of logging onto the internet or calling someone on the phone, lest you be a hypocrite.
Lastly, I think if you really want to look at the statistics and play the number game between which were the cause of the most deaths and the saving of the most lives between science and religion, you'd be thoroughly surprised. I mean, I wouldn't, but apparently you would.