Objective: The study aimed to determine coronavirus disease-2019 (COVID-19) pandemic on the attitudes of cardiologists, the anxiety conditions and effect on clinical functioning. Material and Methods: The clinical activities scale developed by researchers and the Beck Anxiety Scale were used as data collection tools in the study. Descriptive statistical methods, materiality tests, correlation, and regression analysis were used in the analysis of the data. Results: In cardiology clinics, patient admission continued; elective interventional diagnosis and treatment work decreased. Cardiologists declared that there was a serious decline in acute coronary syndrome application (87.2% of cardiologists) and that the most common cause of patients not wanting to come to the hospital was the fear of being infected. The severity of pandemic and the improved treatment protocols for COVID19 were found to be effective in cardiac interventional treatment decisions. It was found that disruptions in clinical functioning increased anxiety (β=0.128), whereas the fight and prevention against COVID-19 (β=-0.304) decreased anxiety. Conclusion: The COVID19 pandemic caused severe disruptions in the routine functioning of cardiology clinics and interventional procedures and an increase in anxiety among physicians. In a pandemic, preventions should be taken to minimize the treatment of non-infected patients and the anxiety of doctors besides the treatment of infected patients.