Diabetologists can treat all types of diabetes including insulin-dependent diabetes, diabetes mellitus, gestational diabetes, and diabetes insipidus.

Some of the tests that can be recommended by diabetologist are fasting blood sugar test, oral glucose tolerance test, random blood sugar test, and glycated haemoglobin test.

You can visit any of them as both are trained in the diagnosis and treatment of diabetes. Most diabetologists are endocrinologists who have taken specialised training in diabetes.