If you need an initial class one it will indeed be at Gatwick. As a matter of interest - why is your (presumably part-fcl ) spanish medical not considered acceptable? and if you already have a part fcl spanish medical don't you just need a renewal not an initial ? You really don't want to put yourself through an initial class one at gatwick if you don't need to. Not only is it the most thorough examination you'll ever have but the most expensive too.