Here it is to be added to whatever demented moc you may seem fit to place him in. My kids and my wife helped me pick out these parts - it was the closest we could come. And no - I don't wear a clinical/lab coat, and I don't actually have my stethoscope around my neck all the time.
Parts List from top to bottom (bricklink parts numbers):
62810 – Dark Brown
Minifig, Headgear Hair Short, Tousled with Side Part
3626bpx301 – Yellow
Minifig, Head Male Smirk, Pupils, Stubble Beard and Moustache and Sideburns
973pb532c01 - Black
Torso Suit Jacket with White Tie / Black Arms / Flesh Hands
970c00 – Black
Hips and Legs
I will be back to building soon, and look out for the con't adventures of Ocean as he explores the Canadian Rockies.