There are many Israeli (Jewish) students who go to Europe for medical school.

A lot of this has to do with Americans going to Israeli medical schools who take up the space, and it is doubtful this has to do with the individual you met who was Muslim.

This past year Israel actually banned/limited the number of Americans who can enroll in their medical schools. https://www.timesofisrael.com/israel-ends-lucrative-american...

Edited to include link