My annual out of pocket maximum is $6500 and I reach it with one Remicade infusion which is $10,000 a pop. However, all that comes out of my pocket is $440 approximately. This is because Anthem counts payments made by Remistart (credit card given to you by Remicade), even though those payments don't come out of your pocket. I think it's because those payments are considered financial assistance by the manufacturer.
In any event, my policy period starts November 1, and if I schedule my infusion in November the out of pocket maximum is reached in November and I am covered 100% the rest of the year.
Its for this reason I choose the highest deductible plan available from Anthem under our group options.