James Mack, MD, Endocrinology, Billings, MT, Billings Clinic


Endocrinology Billings, MT

Diabetes, Osteoporosis & Bone Metabolism Medicine, Pituitary Disorders & Neuroendocrinology, Thyroid


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  • Dr. James Mack, MD is an endocrinologist in Billings, Montana. He is currently licensed to practice medicine in Montana, Minnesota, and Oregon. He is affiliated with Billings Clinic and Sheridan Veterans Affairs Medical Center.

Education & Training

  • Mayo School of Graduate Medical Education
    Mayo School of Graduate Medical EducationFellowship, Endocrinology, Diabetes and Metabolism, 1994 - 1997
  • Providence Medical CenterResidency, Internal Medicine, 1987 - 1990
  • University of Washington School of Medicine
    University of Washington School of MedicineClass of 1987

Certifications & Licensure

  • MT State Medical License
    MT State Medical License 1999 - 2023
  • MN State Medical License
    MN State Medical License 1994 - 1998
  • OR State Medical License
    OR State Medical License 1988 - Present
  • American Board of Internal Medicine Internal Medicine
  • American Board of Internal Medicine Endocrinology, Diabetes and Metabolism

Awards, Honors, & Recognition

  • Diabetes Recognition Program National Committee for Quality Assurance, 2010-2013

Clinical Trials

Hospital Affiliations