Mark O'Brien, MD

Internal Medicine & Nephrology
Grand Rapids, MI 616 774-8200

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  • TEL 616 774-8200
    FAX 616 774-0304
  • ADDRESS
    Mark O'Brien, MD

    4070 Lake Dr., Suite 201
    Grand Rapids, MI 49546

  • Mon – Fri / 8:30AM – 5:00PM
    Sat – Sun / Closed

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