The COVID-19 pandemic has negatively affected individuals with chronic conditions, such as type 2 diabetes mellitus (T2DM). The full extent of the impact however remains unknown, mainly due to the limited research availability. This study examines the pandemic’s impact on T2DM diagnosis and management in the United States. The methods include a literature review and an online survey of American healthcare professionals regarding their experiences of T2DM during the pandemic. Findings indicated significant reductions in healthcare utilisation among T2DM patients and a decline in the quality of care for this population. These reductions may have been attributed to fewer HbA1C tests being performed and emergency department visits, with a high proportion of individuals experiencing uncontrolled diabetes and receiving treatment intensification, especially among racial/ethnic minority groups, rural populations, and those with comorbidities. Effective strategies are needed to support T2DM regular follow-up and self-management, tailored to patient needs and culturally appropriated. Technologies like telemedicine can help address these needs, potentially reducing healthcare costs and improving clinical outcomes and quality of life for people with T2DM.