At least I know Shared Solutions (
copaxone) has a place on their site where you can put in your zip
code and they will list any programs scheduled in your area. The other mfgs probably have the same feature.
And you don't have to be a user of their particular drug to attend their talks.
With all the fine medical schools in your area, there has to be some active patient groups affiliated with them. I would also check the MS clinics in your area and ask them about patient groups.