If you need to meet me, the best thing to do is send me an email, briefly stating what you need to meet about. The following points apply:
I rarely check emails after 6pm or on the weekend, so please contact me about urgent matters as early as you can.
I am usually not available to meet on Mondays, but I will check emails regularly.
If the issue can be resolved by email without meeting in person, I will try to do that. It usually saves time.
Otherwise, meetings will take place in my office, 3401 Walnut Street, Room 317C, unless otherwise stated. (Be sure to use the B/C Wing entrance to the building next to Modern Eye, not the A Wing entrance next to Starbucks. Then take the elevator to the third floor.)
If my office door is closed, you don't have an appointment, and whatever you need can wait, please don't disturb.
If you don't have an appointment, but my office door is open, I'm available for quick questions.