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John Marcum, MD, Pediatrics, Westlake Village, CA

John William Marcum MD

Pediatric Critical Care Medicine


Physician

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  • 32018 Royceton Ct.Westlake Village, CA 91361

  • Phone+1 805-338-2395

Dr. Marcum is on Doximity

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Education & Training

  • Children's Hospital Los Angeles
    Children's Hospital Los AngelesFellowship, Pediatric Critical Care Medicine, 2002 - 2005
  • Children's Hospital Los Angeles
    Children's Hospital Los AngelesResidency, Pediatrics, 1999 - 2002
  • Keck School of Medicine of the University of Southern California
    Keck School of Medicine of the University of Southern CaliforniaClass of 1999

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 2001 - 2026
  • TX State Medical License
    TX State Medical License 2006 - 2011
  • Pediatrics
    American Board of Pediatrics Pediatrics
  • Pediatric Critical Care Medicine
    American Board of Pediatrics Pediatric Critical Care Medicine

Publications & Presentations

PubMed

Press Mentions

  • Medical Center Unveils Pediatric Intensive Care Unit
    Medical Center Unveils Pediatric Intensive Care UnitJanuary 17th, 2026

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