There was a provider I had been looking at and was looking forward to making an appointment with later this month.  However, she has since disappeared from TER as well as other advertising spaces.  Does this mean she has decided to quit the business, or should I take the chance and try contacting her anyways?  Anyone have an opinion?

It may just mean that she has a sufficient clientele and doesn't recruit for new business.  Contact her if she floats your boat as there is little to lose.   Nothing ventured, nothing gained!!!

tough call, hard finding 30 seconds to draft an email, text or phone.  You need to figure if you can spare the time & effort.  good luck

Can you divulge to us whom your looking for? Or, you can pm me if you don't wanna go public.
I'm curious?

i guess I really opened myself up for it.  I guess I meant would it be bad form to contact someone, when they had taken down on their listings?  I'm guessing there is a reason why she did it, but would it be rude or obnoxious to contact her?