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Dr. Mattison is on Doximity

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Education & Training

  • Geisinger Health System
    Geisinger Health SystemResidency, Emergency Medicine, 2011 - 2013
  • Geisinger Health System
    Geisinger Health SystemResidency, Internal Medicine/Pediatrics, 2007 - 2011
  • Loma Linda University School of Medicine
    Loma Linda University School of MedicineClass of 2007

Certifications & Licensure

  • PA State Medical License
    PA State Medical License 2007 - 2024
  • CA State Medical License
    CA State Medical License 2019 - 2021
  • WA State Medical License
    WA State Medical License 2019 - 2021
  • American Board of Emergency Medicine Emergency Medicine

Hospital Affiliations