NUCC taxonomy code

207RE0101X - Endocrinology, Diabetes & Metabolism Physician

207RE0101X is the NUCC provider taxonomy code for Endocrinology, Diabetes & Metabolism Physician, a specialization within Internal Medicine (individual providers). 12,930 providers in our latest NPPES snapshot list it as their primary taxonomy.

12,930 providers · primary taxonomy

Code breakdown

Taxonomy code 207RE0101X

Display name Endocrinology, Diabetes & Metabolism Physician

Grouping Allopathic & Osteopathic Physicians

Classification Internal Medicine

Specialization Endocrinology, Diabetes & Metabolism

Section Individual

Directory Internal Medicine provider directory

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

207R00000X Internal Medicine Physician 207RA0401X Addiction Medicine (Internal Medicine) Physician (Internal Medicine) 207RA0000X Adolescent Medicine (Internal Medicine) Physician (Internal Medicine) 207RA0002X Adult Congenital Heart Disease Physician (Internal Medicine) 207RA0001X Advanced Heart Failure and Transplant Cardiology Physician (Internal Medicine) 207RA0201X Allergy & Immunology (Internal Medicine) Physician (Internal Medicine) 207RC0000X Cardiovascular Disease Physician (Internal Medicine) 207RI0001X Clinical & Laboratory Immunology (Internal Medicine) Physician (Internal Medicine)

Frequently asked questions

What does taxonomy code 207RE0101X mean?

207RE0101X is the NUCC Health Care Provider Taxonomy code for Endocrinology, Diabetes & Metabolism Physician, a specialization of Internal Medicine 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 207RE0101X?

Browse the Internal Medicine directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-13.