I have used Dr. Berger for all of my fills so far, and have been very pleased. All fills are done under fluro. at TASC (outpatient surgical center attached to Flagstaff Medical Center). The nurse there told me that he does MANY Mexican band patients. The cost is $250 for TASC and you will have to pay when you get there. I'm not exactly sure if there is a bill from Berger also?
He uses a local anesthetic at the port site before the fill. It feels like a little pinch, but the fill itself is painless. The last fill I had was with the PA, and he wasn't as slick, but it went just fine.
I don't know how many fills Berger has done, but I was very satisfied with the whole thing. As much as I would love to return to the OCC for follow up, it just isn't possible now due to time off work, expense for travel, and just plain inconvenient. I would recommend him without reservation.
Hope that helps.