The web site states, very clearly, once you have chosen your province, "This information is subject to change at any time. Please refer to the contents here on a regular basis for up-to-date contact information.
" So, what is the point of a list? You don't need to phone up each DMP. Use the one for your area that is listed by CIC through their web site. Perhaps you have not made your reasoning clear?
Also, there is already a thread about this at http://www.canadavisa.com/canada-immigration-discussion-board/emedical-enabled-cic-panel-physicians-t133756.0.html