Understanding and Optimizing Care for Young Adults With Type 1 and Type 2 Diabetes Mellitus Transitioning to Adult Care

Inclusion Criteria: * Type 1 or type 2 diabetes mellitus * Between ages 18 and 30 years * Any duration of diabetes * Must self-manage diabetes * A new patients at the Massachusetts General Hospital (MGH) Diabetes Center at 50 Staniford Street as of September 1, 2021. * The patient does not have to be diagnosed with diabetes in youth or have been previously seen at MGH for Children (MGHfC) Pediatric Diabetes Clinic to be included Exclusion Criteria: * Patients with gestational diabetes, diabetes during pregnancy, MODY, or other forms of diabetes * Patients with type 2 diabetes who are on no medications (diet-controlled), or metformin only unless they are within one year of diabetes onset * Patients with significant cognitive, physical, or mental disability requiring that their diabetes care be managed by another individual (i.e. parent, spouse, guardian, nurse, residential facility) more than 25% of the time * Non-English speaking * Patients who are pregnant