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Mary Ann (Hanes) Trephan, MD, Emergency Medicine, Northridge, CA, Kaiser Permanente Woodland Hills Medical Center

Mary AnnH(Hanes)TrephanMD

Emergency Medicine Northridge, CA

Physician

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Summary

  • Dr. Mary Ann (Hanes) Trephan, MD is a board certified emergency medicine physician in Northridge, California. She is currently licensed to practice medicine in California and Pennsylvania. She is affiliated with Kaiser Permanente Woodland Hills Medical Center.

Education & Training

  • Drexel University College of Medicine/Hahnemann University Hospital
    Drexel University College of Medicine/Hahnemann University HospitalResidency, Emergency Medicine, 1993 - 1996
  • Sidney Kimmel Medical College at Thomas Jefferson University
    Sidney Kimmel Medical College at Thomas Jefferson UniversityClass of 1993

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1999 - 2025
  • PA State Medical License
    PA State Medical License 1994 - 1998
  • American Board of Emergency Medicine Emergency Medicine

Publications & Presentations

PubMed

Hospital Affiliations