Greater Chicago area
The Greater Chicago area is the widest lens this guide uses, and it is the weakest one for pinning down a price. What it offers instead is a way to separate the figures that belong to your situation from the ones that only describe a region.
What this page tells you about price spread
A region contains many providers, and each one quotes its own figure for its own plan. This page does not name a regional figure, because none is sourced here. It tells you that a spread exists and that your job is to find out what each number includes.
Cost questions that come from across the region
A figure can reach a Des Plaines reader from an advertisement, a friend's bill or a nearby suburb. Four questions apply to all of them. Is it a ballpark or a firm quote? What does it include? What would change it? Is it for one vein or the full plan? For a worked example of how to tie those questions to a specific treatment, see sclerotherapy and Varithena, or saphenous vein basics if you do not yet know which vein is involved.
Where Des Plaines fits
Wikipedia's entry on Des Plaines says: Per the 2020 census, the population was 60,675. The city is a suburb of Chicago. Des Plaines is therefore one town inside a much larger area, and this page claims nothing about what a figure should be across the region. For the nearer view, see the Maine Township page, and for the town itself, this Des Plaines overview. The NHS guide to varicose veins and the MedlinePlus entry on varicose veins describe the condition without prices.