Current Fellows

Year 3

Chelsey Mitchell, MD
- New York - Presbyterian/Columbia University - Morgan Stanley Children's Hospital
Dr. Mitchell completed medical school at Tufts University School of Medicine in Boston, MA and pediatric residency at Morgan Stanley Children's Hospital/Columbia University New York, New York. After residency she worked in the Pediatric Cardiac Intensive Care Unit at Columbia, as a hospitalist for 2 years after which she worked for another 2 years as an acute care pediatrician in our Emergency Room prior to starting fellowship.

Dr. Mitchell's primary academic interest is in Quality Improvement and Operations. She most recently completed a leadership course in Quality Improvement at Cinncinati Children's Anderson Center for Health Care Excellence during which her focus was on improvement of interpreter services and documentation within the pediatric emergency room at our institution.

Dr. Chelsey Mitchell's Pubmed(link is external and opens in a new window)
Katherine Ryan, MD
- New York - Presbyterian/Columbia University - Morgan Stanley Children's Hospital
Dr. Katherine Ryan completed medical school at Georgetown University School of Medicine. She completed pediatric residency and chief residency at NYP-Columbia Morgan Stanley Children's Hospital.

Dr. Ryan's primary scholarly interests are in Operations and QI/Patient Safety. She has previously served on hospital-wide committees including the Quality Assurance/Significant Events Committee, the ED-Inpatient Working Group and the Hospital Operations Performance Excellence Team, and hopes to continue this work as a fellow.

Year 2

Andzelika Dechnik, MD
- Boston Children’s Hospital
Dr. Andzelika Dechnik completed medical school at Weill Cornell Medicine, followed by pediatric residency at the Boston Combined Residency Program at Boston Children’s Hospital and Boston Medical Center. Dr. Dechnik’s primary academic interest is medical education.

In medical school, Dr. Dechnik completed research about delirium in the PICU. During residency, she worked on medical education projects, including research on intubation opportunities for learners in pediatric emergency departments. Dr. Dechnik hopes to continue focusing her research on medical education, particularly in the field of pediatric emergency medicine.

Dr. Andzelika Dechnik's Pubmed(link is external and opens in a new window)
Trishell Simon, MD
- Jackson Memorial Hospital/University of Miami
Dr. Trishell Simon completed medical school at The University of the West Indies St. Augustine Campus, Trinidad where she later practiced for two years in the department of Pediatric Emergency Medicine. Dr. Simon then did a one-year practicum in general pediatrics at Leyte Provincial Hospital in The Philippines. In 2019 she began her pediatric residency in Miami, Florida at the University of Miami/Jackson Memorial Hospital, spending her fourth year as Chief Resident.

Dr. Simon has a strong interest in Medical Education as well as in Disaster and Crisis Preparedness and Mass Casualty Incident Triage. Dr. Simon envisions her professional career operating at the nexus of this specialty care and its positive impact on our most marginalized communities.

Dr. Trishell Simon's Pubmed(link is external and opens in a new window)

Year 1

Jessica Ashley, MD, MPH
- Yale New Haven Hospital
Dr. Jessica Ashley completed medical school at Icahn School of Medicine at Mount Sinai. She then completed a residency in pediatrics and chief residency at Yale New Haven Hospital. Her primary interests are public health advocacy and community engagement with marginalized populations. She sees a future career embedded in the diverse milieu of pediatric emergency medicine bridging the gap between healthcare institutions and the communities we serve.

Dr. Jessica Ashley's Pubmed(link is external and opens in a new window)
Erin Hannon, MD
- New York - Presbyterian/Columbia University - Morgan Stanley Children's Hospital

Current Fellows

Year 3

Chelsey Mitchell, MD

Katherine Ryan, MD

Year 2

Andzelika Dechnik, MD

Trishell Simon, MD

Year 1

Jessica Ashley, MD, MPH

Erin Hannon, MD