There is no international medical plan we know of that penalizes individuals by raising their premium for claiming.
There are two ways insurers apply premium increases.
The way most people expect is to apply a percentage increase to premium tables across the board, so the price you pay is what everybody else pays in the same age band at all times. Almost all European plans use this transparent system.
The other method is to follow a cohort joining in a year as a class, and apply increases to that pooled group accordingly. Almost all American plans including ours are administered this way. Entry premiums do not change much from year to year. The bad thing about this is that people are confused when they see higher renewal prices, than on the premium table. The good thing about this is that you can quit and start a new policy at the low entry price if you want the lower premium. The applied increases have kept pace with the competition, and are most often lower typically for the first 5 years. So you start lower, have lower increases, and can restart the clock if you want. You can’t do that with other plans that apply increases across the board.