Dr Daniel Won, Neurosurgeon,
Kaiser Permanente, 411 N. Lakeview Ave, Anaheim Calif 92807.
This is the Chiari expert in California . Alot of people go to him.
Ulrich Batzdorf, MD.
http://neurosurgery.ucla.edu/Faculty/Batzdorf/Faculty_Batzdorf.html
Professor of Neurosurgery and Director of Spine Surgery
http://neurosurgery.ucla.