I would make sure that the next appointment went VERY differently if I were you. Go in with your boxing gloves on. The moment he walks in the door, tell him. I FEEL DISMISSED. I NEED you to SIT down and TALK to me. I understand that you have a office full of people that are clamoring for your attention, BUT for this moment, YOU BELONG TO ME. So, please, sit down, and lets start over. Most MDs get into a rush rush rush frame of mind, and will rarely slow down unless someone calls them on their bad behavior.
If you still feel dismissed after speaking up for yourself. I would seek out a new MS neuro. Go to an MS center.
This disease is too awful, and we can become too fragile too quickly to be dismissed.
Wanna borrow my boxing gloves?