Hospitalist is a recognized medical speciality with their own national society and NUCC provider taxonomy code 208M00000X.

https://www.hospitalmedicine.org/about-shm/what-is-a-hospita...

Thanks, but that doesn't really answer my question. It demonstrates that it is a thing in America, but for it to be an exclusively American thing I would really need some confirmation that it is not widely used in other places. Cheers for whoever downvoted, would love to understand why asking a question gets a downvote?