William Zaks

William Zaks, MD, PhD, FACE


Internal Medicine, Diabetes, and Endocrinology

William Zaks, MD, PhD, FACE, specializes in endocrinology, diabetes and metabolism at Altru Health System. Outside of work, he enjoys fishing, birding, chess and going to his grandchildren's sporting events.

To schedule an appointment, please call 701.780.6400


Philosophy Of Medicine

"I am motivated by the intellectual challenge and personal gratification of helping others stay healthy. I practice medicine because I wanted a science-based, mentally challenging career, with the opportunity to interact with and help people directly."

Special Practices and Procedures

  • Diabetes
  • Thyroid disease with thyroid biopsies
  • General endocrine problems


Medical Education

University of Virginia, Charlottesville, Virginia


Barnes Hospital, St. Louis, Missouri


Washington University, St. Louis, Missouri


Barnes Hospital, St. Louis, Missouri, Endocrinology, Diabetes and Metabolism

Teaching or Professional Positions

  • Associate Clinical Professor of Medicine, University of North Dakota School of Medicine and Health Sciences
  • Chair of Altru Institutional Review Board

Professional Memberships

  • American Diabetes Association (ADA)
  • American Association of Clinical Endocrinologists (AACE)