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Dr. Penfield is on Doximity

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Education & Training

  • Main Line Health System/Bryn Mawr Hospital
    Main Line Health System/Bryn Mawr HospitalResidency, Family Medicine, 1980 - 1983
  • SUNY Upstate Medical University
    SUNY Upstate Medical UniversityClass of 1980

Certifications & Licensure

  • MA State Medical License
    MA State Medical License 1983 - 2019

Hospital Affiliations