NUCC taxonomy code
207R00000X - Internal Medicine Physician
207R00000X is the NUCC provider taxonomy code for Internal Medicine Physician (individual providers). 191,393 providers in our latest NPPES snapshot list it as their primary taxonomy.
Code breakdown
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Definition from the NUCC Health Care Provider Taxonomy code set.
Related taxonomy codes
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-13.