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Dr. Tjossem is on Doximity

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Education & Training

  • St Louis University School of Medicine (Southwest Illinois)
    St Louis University School of Medicine (Southwest Illinois)Residency, Family Medicine, 1989 - 1991
  • 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

  • OR State Medical License
    OR State Medical License 2011 - Present
  • IA State Medical License
    IA State Medical License 1996 - 2026
  • CO State Medical License
    CO State Medical License 2013 - 2025
  • WI State Medical License
    WI State Medical License 1991 - 2025
  • MN State Medical License
    MN State Medical License 2020 - 2024
  • IL State Medical License
    IL State Medical License 1988 - 1993
  • American Board of Family Medicine Family Medicine