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Nickolas Demark, DO, Internal Medicine, Oskaloosa, IA

Nickolas Samuel Demark DO

Hospice & Palliative Medicine, Hospital Medicine/Hospitalist


Michigan State / Western Michigan University

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  • 1229 C Ave EOskaloosa, IA 52577

  • Phone+1 641-672-3100

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Education & Training

  • Des Moines University College of Osteopathic Medicine
    Des Moines University College of Osteopathic MedicineClass of 2011

Certifications & Licensure

  • IA State Medical License
    IA State License 2024 - 2026
  • WI State Medical License
    WI State License 2014 - 2025
  • MI State Medical License
    MI State License 2011 - 2015
  • Internal Medicine
    AOA Board of Internal Medicine Internal Medicine

Press Mentions

  • DeMark Brings Compassion and Expertise to Mahaska Health Hospice & Palliative Care
    DeMark Brings Compassion and Expertise to Mahaska Health Hospice & Palliative CareNovember 4th, 2025

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