Many Lamas & Gurus from the Mahayana have visited the West in the last century or so. Here is Nick Ribush MD recollecting some of his experience with the late Lama Yeshe. Lama Yeshe (d. 1984) was a major figure in helping the Dalai Lama spread Tibetan wisdom here:
https://www.youtube.com/watch?v=x8fZ8FotNaA&t=1437s