Is there a caste called a medical caste? I have not heard of any. Come to think of it, medicine was one profession not special to any particular caste. At best, some people from among the brahmins vecane vaidyas or baids.

Vaidya or Boiddho is a caste in West Bengal. A professional classification which later got converted into a caste that is just below the Brahmin.

Should read Unani, most probably.