diabetologist

[ dahy-uh-bi-tol-uh-jist ]
/ ˌdaɪ ə bɪˈtɒl ə dʒɪst /

noun

a physician, usually an internist or endocrinologist, who specializes in the treatment of diabetes mellitus.

Origin of diabetologist

First recorded in 1960–65; diabet(es) + -o- + -logy