Wu F, et al. - Researchers aimed at characterizing emergency departments (EDs) Physician Assistant (PA) utilization and practice characteristics in US EDs 2010–2017 via performing a retrospective, secondary analysis of the 2010 to 2017 Center for Disease Control's National Hospital Ambulatory Medical Care Survey. Between 2010 and 2017, they identified the occurrence of about 1 billion US ED visits. PAs alone (PA) attended 5.0% of visits, and PAs with physician involvement (PA+) attended 8.2%; physician only (PHYS) attended 76.3% (±7.2%). Observations revealed no linear trends in US ED PA and PA+ utilization from 2010 to 2017. The majority of ED patients are still attended by PHYS. Highest PA acuity was noted for semi-urgent/nonurgent (56.4%, ±10.7%). The minority of ambulance arrival is seen [5.8% (±1.3)] and fewer patients are admitted [1.7% (±0.7%)] in PA visits. PA vs PHYS visits led to undertaking of less laboratory [53.3% (±10.2%) vs 67.0% (±6.2%)] and radiographic [38.8% (±6.6%) vs 51.6% (±4.6%)] studies. Most commonly patients 25–44 years old (yo) (32.9%, ±6.2%) and 15–24 yo (19.2%, ±3.7%) are seen in PA visits. A length of stay (LOS) between 1 and 1.9 h (32.9%, ±6.7%) is seen in most PA visits vs a LOS > 3 h observed in most PHYS visits (40.3%, ±3%).