Dr. Theoklis Zaoutis

Professor

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Biography

Dr. Theoklis E. Zaoutis is an internationally recognized leader in public health, epidemiology, and pediatrics. He is a researcher and principal investigator for multiple NIH-funded projects, including the R01 and T32 grants, and directs the Center for Pediatric Clinical Effectiveness Research Group. Dr. Zaoutis has relocated to Greece to serve on the country’s COVID-19 Task Force, where he was selected to lead the Greek CDC during the pandemic. In this capacity, he was responsible for setting national COVID-19 vaccine policy and analyzing data related to vaccine effectiveness. He has published over 370 articles on vaccine-related topics and has a research focus on antimicrobial resistance and healthcare epidemiology, with methodologic expertise in pharmacoepidemiology. He co-leads the NIH Pediatric Pharmacoepidemiology T32 Training Grant and is an Associate Editor for the journal Pharmacoepidemiology and Drug Safety. Dr. Zaoutis has served on various committees, including as President of the Hellenic National Organization for Public Health and Vice-Chair of the American Academy of Pediatrics Committee on Infectious Diseases.

Research Interests

Experience

Adjunct Professor

— Present

Columbia University Mailman School of Public Health • New York, NY

Lectures in epidemiology and public health, guiding discussions on current research and methodologies.

Professor

— Present

National Kapodistrian University of Athens School of Medicine • Athens, Greece

Focused on advancing pediatric health through research and education.

Emeritus Professor of Pediatrics and Epidemiology

— Present

Perelman School of Medicine at the University of Pennsylvania and the Children’s Hospital Philadelphia • Philadelphia, PA

Provided expertise in pediatrics and epidemiology, contributing to educational and research initiatives.

Requirements for Columbia University Mailman School of Public Health

Master Program
Requirements
GPA Requirement
Required:3
TOEFL
Listening
Required:25
Reading
Required:25
Writing
Required:25
Speaking
Required:25
Total
Required:100
IELTS
Listening
Required:7
Reading
Required:7
Writing
Required:7
Speaking
Required:7
Overall
Required:7.5
Duolingo
Overall Score
Required:135
Overall
Required:135
GRE General
Prerequisites
Bachelor's degree from an accredited institution One semester of college-level mathematics (Algebra or above) One semester of introductory Biology Evidence of quantitative and analytical ability
Application Checklist
  • SOPHAS Online Application
  • Official Transcripts
  • Personal Statement (500-1000 words)
  • Three Letters of Recommendation
  • Resume/CV
  • Quantitative & Analytical Assessment
Specialization Notes

Master of Public Health (MPH) and Master of Science (MS) options available. GRE is optional for Fall 2026.