Dr. Daniel Tsze is a board-certified pediatric emergency medicine physician and Professor of Pediatrics (in Emergency Medicine) at the Columbia University Irving Medical Center. He currently practices in the Pediatric Emergency Department at the NYP-Morgan Stanley Children's Hospital.

Dr. Tsze conducts research that aims to improve and optimize the treatment of pain and distress and provision of procedural sedation for children in the emergency department. His specific areas of interest include intranasal analgesics and sedatives, the psychometric properties and clinical interpretation of self-report and observational measure of pain in children, integrative strategies for treating pain and distress, and the evaluation and treatment of headaches in children. He is currently the Principal Investigator of the PECARN HEADACHE study (Headache Assessment of Children for Emergent Intracranial Abnormalities), an NINDS R01 that aims to prospectively derive and internally validate a risk stratification model for identifying the risk of emergent intracranial abnormalities in children presenting with headaches to one of 18 emergency departments in PECARN. He is also a PI (MPI Tsze, Drendel) of the PECARN MoKA study (Morphine or Ketamine for Analgesia), an NIH HEAL Initiative U01 that aims to determine the effectiveness of intravenous sub-dissociative ketamine compared to intravenous morphine for treating children with acute pain who present to one of 8 emergency departments in PECARN. He is a member of the Society for Pediatric Sedation Research Committee.

Dr. Tsze received his MD from the University of British Columbia and his MPH from Brown University. He completed his Pediatric residency training at BC Children's Hospital and his Pediatric Emergency Medicine fellowship at Hasbro Children's Hospital.