Ultra Thermo Keto The diabetologist recognizes the type of diabetes or metabolic disorder, and in case of complications, directs the patient to an appropriate specialist, e.g. a neurologist , cardiologist , ophthalmologist .Read also:Diabetes complications: early (acute) and late (chronic)The diabetologist also issues referrals for additional tests and qualifies people with diabetes for surgery.Read also:Research for diabetics. List of tests important for diabeticsGood to knowTo become a diabetologist, you must complete medical studies