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Dr. Zajac is on Doximity

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Education & Training

  • University of California Davis Health
    University of California Davis HealthFellowship, Gastroenterology, 1988 - 1990
  • Geisinger Health System (Danville)
    Geisinger Health System (Danville)Residency, Internal Medicine, 1985 - 1988
  • George Washington University School of Medicine and Health Sciences
    George Washington University School of Medicine and Health SciencesClass of 1985

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1988 - 2024

Awards, Honors, & Recognition

  • Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2011

Hospital Affiliations