PIP, do they contact the numbers given?

ElMH

Hi, in the PIP how your disability affects you form, at the end I wrote names and numbers of doctors to contact. Do they use these contacts to collect evidence or to clarify what I wrote for supporting evidence? I’m hoping this is the case because I feel it would work in my favour but I’m unsure. 

poppy123456

Unfortunately, it’s rare for them to contact anyone.