Looks like the option to change the default screen in the phone is going to persist on opening up to the dialer.
The closest you can get to that is re-arranging the other options you desire to the left & right of the dialer.
My apologies for the misinformation.
You'll probably be able to find a dialer replacement app in the GOOGLE PLAY STORE that has a bit more flexibility,if you desire.
I myself have never cared for replacement dialers,but perhaps others who've had more experience w/such will have some suggestions.