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Mark McGillem, MD, Internal Medicine, Mishawaka, IN, Plymouth Medical Center


Internal Medicine Mishawaka, IN

Hospital Medicine/Hospitalist


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  • Dr. Mark McGillem, MD is a board certified internist in Mishawaka, Indiana. He is currently licensed to practice medicine in Indiana, Illinois, and Michigan. He is affiliated with Saint Joseph Health System and Plymouth Medical Center.

Education & Training

  • University of Hawaii
    University of HawaiiResidency, Internal Medicine, 1994 - 1996
  • Cleveland Clinic Foundation
    Cleveland Clinic FoundationInternship, Internal Medicine, 1993 - 1994
  • Boston University School of Medicine
    Boston University School of MedicineClass of 1993

Certifications & Licensure

  • IN State Medical License
    IN State Medical License 1999 - 2023
  • HI State Medical License
    HI State Medical License 1997 - 2018
  • MI State Medical License
    MI State Medical License 1998 - 2017
  • IL State Medical License
    IL State Medical License 2011 - 2014
  • American Board of Internal Medicine Internal Medicine

Publications & Presentations


Professional Memberships

Hospital Affiliations