Dr. Rachel Karchin

Professor

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Biography

Rachel Karchin is a pioneer in computational cancer genomics, renowned for developing innovative algorithms for variant interpretation and tumor evolution. She created CHASM, a widely used statistical learning method that distinguishes driver from passenger mutations, and led the development of OpenCRAVAT, an open-source variant annotation toolkit that has been widely adopted. Her contributions extend to immuno-oncology, with the BigMHC model driven by deep learning that advances neoantigen prediction in precision medicine. Karchin is a core member of the Johns Hopkins University Institute for Computational Medicine and has received numerous accolades, including being inducted as a Fellow of the American Institute for Medical and Biological Engineering in 2017 and the International Society for Computational Biology in 2025. With a strong academic background, she holds a joint appointment in Oncology at the School of Medicine and a secondary appointment in the Department of Computer Science at the Whiting School. Karchin co-led the Cancer Genome Atlas (TCGA) PanCan Atlas Essential Genes Drivers Analysis Working Group and currently leads the T Cell Repertoire Profiling Data Science team for Break Cancer. Her educational qualifications include a PhD in Computer Science from the University of California, Santa Cruz, awarded in 2003, and earlier degrees from the same institution in 2000 and 1998.

Research Interests

Requirements for Johns Hopkins University

Doctorate Program
Requirements
GPA Requirement
Required:3
TOEFL
Total
Required:100
IELTS
Overall
Required:7
Prerequisites
Bachelor's degree Inorganic Chemistry with Lab Organic Chemistry with Lab General Biology with Lab
Application Checklist
  • Online application
  • Official transcripts
  • CV
  • Personal statement
  • Three letters of recommendation
Specialization Notes

Department of Pathology - PhD in Pathobiology. GRE is not required.