What does ACVIM stand for at the end of a name?

ACVIM stands for American College of Veterinary Internal Medicine. It is a professional organization for veterinarians who specialize in internal medicine, which is the study and treatment of diseases of the internal organs. ACVIM members have completed a residency in internal medicine and have passed a rigorous board certification exam. They are considered to be experts in the diagnosis and treatment of a wide range of diseases, including cancer, heart disease, kidney disease, and liver disease.