207R00000X — Internal Medicine Physician

207R00000X is the NUCC provider taxonomy code for Internal Medicine Physician (individual providers). 190,260 providers in our latest NPPES snapshot list it as their primary taxonomy.

Taxonomy code 207R00000X
Display name Internal Medicine Physician
Grouping Allopathic & Osteopathic Physicians
Classification Internal Medicine
Section Individual
Directory Internal Medicine provider directory

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

What does taxonomy code 207R00000X mean?
207R00000X is the NUCC Health Care Provider Taxonomy code for Internal Medicine Physician in the "Allopathic & Osteopathic Physicians" grouping. It classifies individual providers.
Where is the taxonomy code used?
Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.
How do I find providers with taxonomy 207R00000X?
Browse the Internal Medicine directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-09.