As far as I know, no, not directly. (and its for the best! I would not want to wake up every 2 mins with other peoples "issues" :))
You can contact us via the general chat or the regulators room by pinging us with @foo_user, we normally keep an eye on those 2 rooms and if the moderator you pinged is not there I am sure the community or some other imba user will be there to help you.
Other than that use the comments under posts using the same method (@foo_user) or if you think some thing needs to be solved and you need to actually discuss it with the community you should open a question on meta (such as this one migrated by a moderator to the right place).