Sean O. Keenan, MD

Pathologist | Tukwila

Dr. Sean Keenan is board certified in anatomic, clinical, and molecular genetic pathology and subspecializes in molecular genetic and surgical pathology.

He earned a degree in molecular, cellular and developmental biology from the University of Colorado in Boulder and graduated with summa cum laude honors research distinction in developmental genetics. Dr. Keenan attended medical school at the University of Colorado School of Medicine in Aurora, CO, and completed residency training in anatomic and clinical pathology from the University of California, Irvine, where he served as Chief Resident. Following residency, he completed additional specialty fellowships in molecular genetic pathology at The Cleveland Clinic in Ohio and surgical pathology at the University of California, Los Angeles.


Board Certifications

Anatomic Pathology, Clinical Pathology, Molecular Pathology


Molecular Pathology, Surgical Pathology


  • Undergraduate
    University of Colorado | Boulder, CO
  • Medical School
    University of Colorado School of Medicine | Aurora, CO
  • Residency
    Anatomic and Clinical Pathology University of California | Irvine, CA
  • Fellowship
    Molecular Genetic Pathology The Cleveland Clinic | Cleveland, OH
  • Fellowship
    Surgical Pathology University of California | Los Angeles, CA
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