I've worked with a few doctors now, at various points in their careers (med student, resident, fellow, attending) and in various specialties. A "pattern" I've noticed is that most physicians-in-training (interns or residents) are most concerned about their speech around supervisors, as you really need to impress them to get your recommendations, etc. There is some concern with peers as well, since you want to be perceived as smart and capable. Patients seem to be the least stressful interaction-group, although depending on the person, it can be very uncomfortable or embarrassing to be stuttering while talking to a patient, especially if their whole family is present. For students and residents, the frequent presentations to peers can also be stressful. One client who has been tremendously successful is someone who went from very much trying to control and hide his stutter, to now being extremely open about it. He used to spend hours and hours preparing for short presentations, writing out the whole thing word-for-word and making marks every 3-4 words of where to breathe. He hated the phone, and would avoid making calls, especially if there was someone else in the room. Now, he still works hard on his physical techniques because he likes the tools, but he is now completely free of worrying about how others will perceive him based on his stutter. He recently did interviews and at every single one, informed his interviewer that he had a stutter before even sitting down (in one case, it turned out that the interviewer, who was the director of the program, also stuttered!). He now uses only minimal notes in presentations, because he's OK with stuttering and it makes him a much stronger, more engaging presenter because can actually talk to the audience and not read his notes. As I think I wrote in response to another profession, you will be judged by your clinical skills and knowledge. How people perceive you and your speech is entirely in your control, and being open about it lets YOU dictate how they perceive it, versus letting them make their own assumptions and conclusions.