mole question

I had the moles on my back checked in April and checked by a dermatologist.
But he didn't check all of my body.
I'm very pale, and have lots of freckles + moles so does my mother and father.
The doctor wasn't interested in checking all of my moles so I just pointed out the ones I'm worrying about.
Should I book a full body exam with my doctor? Even though it's only been a month  
Does the doctor even do a full body exam? And how do they check