Vein Center is Best
I suggest that you go to a Vein Center that is managed by a board-certified vein specialist.
The benefits of Vein Centers are: 1) You can get the prescription at the same place that you get the stocking, rather than having to go to 2 separate places. 2) Often the stocking are cheaper here since medical supply stores tend to "mark up" the cost quite a bit. But can use medical supply store also.