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Dr. Butler is on Doximity

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Education & Training

  • University of Pennsylvania Health System Occupational Medicine
    University of Pennsylvania Health System Occupational MedicineResidency, Occupational Medicine, 2011 - 2012
  • University of California San Francisco (East Bay)
    University of California San Francisco (East Bay)Residency, Surgery, 1988 - 1990
  • University of Iowa Roy J. and Lucille A. Carver College of Medicine
    University of Iowa Roy J. and Lucille A. Carver College of MedicineClass of 1988

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1990 - 2025
  • PA State Medical License
    PA State Medical License 2011 - 2012
  • American Board of Preventive Medicine Occupational Medicine