howdy from TX

Hi everybody. New guy from TX here. I found this site cruising the net looking for some info on passing a DOT physical and drug screen. Im 34 yo and have been smoking for about 20 years. Im about 5'9, 175 lbs. Anybody know if the DOT physical and drug screen is scheduled at the same place and same time, by the same doctor? Im asking because Im taking my friends clean pee to the drug test, going to hide it under my nads, but Im afraid they will want me to strip into the gown for my physical before Im asked to pee in the cup. Can I go to 1 doctor for the drug test, and then go to another doctor for the physical? Or do they do it all in 1 place? Any help would be greatly appreciated. Help me put my mind at ease.