Northridge - GastroenterologistI would highly recommend Dr. Niel Fagen. He's located in Northridge and was the one that diagnosed me. He has excellent bedside manner and was very knowledgable about CD.
Here's a link to his location:
http://www.healthgrades.com/directory_search/physician/profiles/dr-md-reports/Dr-Neil-Fagen-MD-0D5AFB23.cfm
http://www.netgastro.com/contact.html
-Tari