According to IRS
Publication 587, webchats will not qualify as a place to meet or deal with patients, clients, or customers in the normal course of one or more of your trades or businesses.
Place To Meet Patients, Clients, or Customers
If you meet or deal with patients, clients, or customers in your home in the normal course of your business, even though you also carry on business at another location, you can deduct your expenses for the part of your home used exclusively and regularly for business if you meet both the following tests.
You physically meet with patients, clients, or customers on your premises.
Their use of your home is substantial and integral to the conduct of your business.
Doctors, dentists, attorneys, and other professionals who maintain offices in their homes generally will meet this requirement.
Using your home for occasional meetings and telephone calls will not qualify you to deduct expenses for the business use of your home.
The part of your home you use exclusively and regularly to meet patients, clients, or customers does not have to be your principal place of business.
