Effect of 2-Week Continuous Glucose Monitoring on Glycemic Management in Patients New-to-Insulin on Hospital Discharge

Inclusion Criteria: 1. Male or female aged 18-100 years 2. Known history of type 1 or type 2 diabetes 3. Admitted to NYU Langone Hospital - Long Island between December 16, 2024- December 31, 2026 4. New initiation of insulin therapy, including basal insulin regimen, basal-bolus insulin regimen, or mixed insulin regimen at the time of hospital discharge Exclusion Criteria: 1. Prior to admission use of home insulin therapy 2. Current use of systemic corticosteroids 3. Active pregnancy; as pregnancy requires different blood glucose targets, subjects known to be pregnant will be excluded from this study. Subjects will not be tested for pregnancy outside of testing performed in routine medical care; pregnancy will be determined by patient self-reporting. Females of childbearing potential will not be instructed to avoid pregnancy, however if they became pregnant during the study (detected by self-reporting), they will be withdrawn from the study.