There is this one DO who doesn't have his name or the letters "DO" on his white coat. I am not sure why he doesn't have it. For me, I would be proud to put DO on my coat so patients would know they were being seen by a DO. I wouldn't want patients to think I was an MD, and if patients ask I would give them a brief explanation. It is the only way to get the word out in my opinion. So is this common place to not have DO on your coat or do many DOs do this?