The purpose of this study is to assess whether intensive case management interventions by a diabetes team, led by an endocrinologist and certified diabetes educator, can prevent <31 day readmission in previously identified high risk patients with diabetes.The procedures of the study will focus on managing the patient's diabetes and diabetes education while in the hospital, decreasing the patient's risk for hypoglycemia and hyperglycemia in the hospital, and assist in the patient's diabetes management plan for a safe discharge.