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Headshot of Tamorah Lewis.

Tamorah Lewis

Title: Division Head, Clinical Pharmacology & Toxicology
Designations: MD, PhD
Pronouns: she/her
Phone: 416-813-2143
Fax: 416-813-7562
Alternate Contact Name: Hila Halshtok
Alternate Phone: 416-813-7413 x207413
Alternate Email:
U of T Positions: Associate Professor, Department of Paediatrics
Chair Positions: Sellers Chair in Pharmacology and Pharmacogenetics

Hospital Positions

Staff Physician, Division of Neonatology

Research Positions

Senior Associate Scientist, Translational Medicine


Dr. Tamorah Lewis is a physician scientist and the Division Head for Clinical Pharmacology and Toxicology at SickKids. In this role, her goal is to advance the hospital-wide vision for Precision Child Health and collaborate with multiple clinical Divisions to research and implement precision therapeutics. She will provide clinical care in the Level IV NICU at SickKids.

Prior to this new role, Lewis was at Children's Mercy Kansas City in the Divisions of Neonatology and Pediatric Clinical Pharmacology for seven years. She worked as an attending in the Level IV NICU and led translational / clinical research in neonatal pharmacology.


The goals of Lewis' research program is to bring precision therapeutics to the NICU population. Her interests include PBPK and population pharmacokinetic and pharmacodynamic investigations in neonates and children, pertaining to both drugs in common use and drugs under development. Her research focuses on the intersection between ontogeny and pharmacogenetic effects on the PK and PD of drugs in infants and neonates. In addition, she aims to bring model-informed precision dosing to paediatric populations.

Education and experience 

  • 2015: PhD in Clinical Investigation (clinical research methodology), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
  • 2010–2014: Dual fellowship training in Neonatal/Perinatal Medicine and Clinical Pharmacology, The Johns Hopkins University School of Medicine, Baltimore, MD
  • 2007–2010: Categorical Pediatric Residency, The Johns Hopkins University School of Medicine, Baltimore, MD
  • 2003–2007: M.D. The Johns Hopkins University School of Medicine, Baltimore, MD


  • 2019–2022: Board of Directors, American Society of Clinical Pharmacology and Therapeutics
  • 2019–present: Executive Committe, American Academy of Pediatrics Section of Clinical Pharmacology & Therapeutics


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