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Mark O'Brien, DO, Internal Medicine, Oceanside, CA, Tri-City Medical Center

MarkO'BrienDO

Internal Medicine Oceanside, CA

Hospital Medicine/Hospitalist

Physician

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Summary

  • Dr. Mark O'Brien, DO is a board certified internist in Oceanside, California. He is currently licensed to practice medicine in California. He is affiliated with Tri-City Medical Center.

Education & Training

  • Henry Ford Hospital
    Henry Ford HospitalResidency, Internal Medicine, 1991 - 1991
  • Henry Ford Hospital
    Henry Ford HospitalResidency, Internal Medicine, 1988 - 1990
  • Genesys Regional Medical Center - Flint
    Genesys Regional Medical Center - FlintInternship, Transitional Year, 1987 - 1988
  • Michigan State University College of Osteopathic Medicine
    Michigan State University College of Osteopathic MedicineClass of 1987

Certifications & Licensure

  • CA State Medical License
    CA State License 1990 - 2025
  • American Board of Internal Medicine Internal Medicine

Professional Memberships

Hospital Affiliations