Medicare coverage of Xolair changing?

[Guest guest]

I've just been reviewing Medicare Part D (prescription) coverage for

2008 and will be staying with the AARP/United Preferred plan. I got

nervous for a bit when I went through the formulary and saw that Xolair

will be covered under this Part D plan for the first time as a " Tier 4 "

drug, meaning the copay would be 33%. So far I've been receiving Xolair

under Medicare Part B with a 20% copay, which is now looking really

good! So I called Medicare to find out if Part B would continue to

cover it now that it can be covered under Part D and they tell me it's

my choice as to which plan I want to use and that if I want to continue

having it covered under Part B is still will be only a 20% copay. That

sounds SO unlikely.... " my choice " ???!!! On insurance coverage??? From

Medicare??????

So my question is, has anyone else run into this with Medicare and been

given the same or a different answer? Do any of our Xolair nurses have

any specific information about any possible upcoming changes in Xolair

coverage under part B? -Fran