diagnostician

plural diagnosticians

1. A person who diagnoses, especially a medical doctor.

   Dr Smith was many things — a mentor, a friend, a helpful colleague — but his highest calling may have been as a diagnostician, in which role he undoubtedly saved lives by breaking a logjam in many a challenging differential diagnosis.

   2 more examples

   Dr. Robert Leroy Hutton, a retired specialist in internal medicine and a well‐known diagnostician, died yesterday here.

   1964 September 24, “ROBERT L. HUTTON, DIAGNOSTICIAN, 83; Internist Dies —Had Been on Lincoln Hospital Staff”, in The New York Times

   "More and more, the shrewdest thinkers and artists are precocious archeologists of ... ruins-in-the-making, indignant or stoical diagnosticians of defeat, enigmatic choreographers of the complex spiritual movements useful for individual survival in an era or permanent apocalypse."

   1969 July 13, Lawrence M. Bensky, “Susan Sontag, Indignant, Stoical, Complex, Useful -- and Moral”, in The New York Times