Hi,
I know you posted a few months ago, but just came across your post in a google search about Bartonella and VEGF.
The tests your doc ordered are right on - good for diagnosis (hopefully) and a more directed treatment.
Also wanted to comment on your insurance issues: BCBS will usually grant you a "one time exception" (which actually lasts 6 months) to see an out of network provider who is a lyme specialist. This is how it worked for me anyway. I still have to pay 50%, but it's better than nothing. Also, since I got my Igenix Test kit from the doctor (bought it for $260), I submitted this claim along with the office visit, and it was also reimbursed at 50%. And, I think that as long as the lab you are going to is in network, they will cover the costs of the lab tests according to your policy. For me, it's 100%, so it's really sweet.
By now you've probably got all your results. Hope they help!
Good luck!