BACKGROUND: The study aims to determine whether shifting to professional emergency department (ED) teams leads to a higher rate of radiologic workup. METHODS: We retrospectively analyzed a total of 2,000 patients presenting to the ED of a tertiary teaching hospital in two time periods: group 1 (G1) comprised 1,000 consecutive patients enrolled from December 21, 2012 to January 5, 2013 (all patients were examined by an internal medicine specialist); group 2 (G2) comprised 1,000 consecutive patients enrolled from December 21, 2018 to January 3, 2019 (all patients were examined by an emergency physician). RESULTS: The chest X-ray (CXR) was performed in 40.6% of all patients. There was no difference in the frequency of CXR (38.9% in G1 vs. 42.3% in G2, P=0.152). More CXRs were performed in G2 patients older than 65 years, in female patients older than 65 years, in patients presenting during the evening and night shifts or off-hours, in patients with a history of malignancy, in patients with gastrointestinal bleeding, and in patients with bradycardia, but fewer in patients presenting with arrhythmia. No diff erence in the rates of pathological CXR was found (47.3% in G1 vs. 52.2% in G2, P=0.186). Compared with G2, higher sensitivity and specifi city were obtained for the binary logistic regression model predicting pathological fi ndings in G1. CONCLUSIONS: Shifting to professional ED teams does not increase radiologic workup. By implementing deliberate usage of ultrasound, some self-governing procedures, case-oriented investigations, and center-specifi c recommendations, unnecessary radiologic workup can be avoided. Professional ED teams could lead to a higher standard of emergency care.