<p>Not only for doctors - lawyers here often do it as well. The diplomas, admission to practice in front of various courts, honor societies, etc., may all be displayed. </p>
<p>You are free to post your sheepskin(s) too, whatever field you are in.</p>
<p>Perhaps in really well decorated high end offices the diplomas would clash with the decor, but otherwise what is wrong about it? Why bother to give diplomas if they are not to be displayed? When I finished school, my mom was so excited to frame all my diplomas for me. </p>
<p>FWIW, I went to a doctor who had his high school diploma on display in his office. Now it was from a very nice high school, but I have to say that that is the only time I have ever seen that.</p>