@Bronte - As @Jules said, we don’t believe Dr. Axon routinely requires a lumbar puncture for a patient to determine whether or not he’d do IJV decompression for him/her.
I also think I waaaay under-quoted what his surgical charge is. I searched for & found a post that has a more accurate cost estimate. The post is from 2024 & the information is in the first post in the discussion.