how many professional herbalists are there in the united states?

Question

as defined by the american herbalist guild

Answer 1

Since you already know of the existence of the American Herbalist Guild, ask how many professional members it has. Then, assuming you get a positive response, it will be your choice if you make an adddtional allowance for professional herbalists who are not members of the AHG.
http://www.americanherbalistsguild.com/index.php?name=AlarContact