This study aimed to assess the utilization of health care services and its associated factors among people with type 2 diabetes mellitus (T2DM) in Nepal. Data on the utilization of health care services were assessed in 481 adults aged 30 to 70 years with T2DM in Nepal. Multiple logistic regression analysis was performed to determine the factors associated with the utilization of health care services. Over 6 months, 66.1% of participants visited health care facilities or health service providers, followed by specialist visits (3.5%), hospitalization (2.1%), and emergency department visits (1.9%). Visit to health care facilities was significantly higher among those aged 50 to 59 years old (ORA: 1.64), practicing Hinduism (ORA: 2.4), and earning NRs ≥30 000 (≥USD 226.10) (ORA: 1.82) as compared to those aged ≥60 years old, practicing other religions, and with monthly family income NRs ≤10 000 (≤USD 75.37), respectively. The utilization of health care services among people with T2DM in Nepal was reasonably low. Identifying the underlying causes of low use of health care services is of great importance to bridge the gap in using health care services for management of diabetes.