@andytheman an endocrinologist is a physician that specializes in organs / glands and illnesses of the endocrine system. These organs / glands secrete hormones that help regulate things like digestion, metabolism, growth and other functions. The pancreas, thyroid and pituitary are common examples of these. There are different kinds & causes of diabetes but if you have it, it relates to the pancreas and insulin production &/or use to keep blood sugar in a healthy range. An endocrinologist specializes in this and helping you to prevent complications of diabetes. (Insulin is not just a medication; it is something that a healthy pancreas produces.)