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Dr. Efferen is on Doximity

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Education & Training

  • University of Chicago
    University of ChicagoResidency, Emergency Medicine, 2003 - 2006
  • New York University School of Medicine
    New York University School of MedicineClass of 2003

Certifications & Licensure

  • IL State Medical License
    IL State Medical License 2003 - 2026
  • American Board of Emergency Medicine Emergency Medicine

Hospital Affiliations