NUCC taxonomy code

207RA0401X - Addiction Medicine (Internal Medicine) Physician

207RA0401X is the NUCC provider taxonomy code for Addiction Medicine (Internal Medicine) Physician, a specialization within Internal Medicine (individual providers). 1,040 providers in our latest NPPES snapshot list it as their primary taxonomy.

1,040 providers · primary taxonomy

Code breakdown

Taxonomy code 207RA0401X

Display name Addiction Medicine (Internal Medicine) Physician

Grouping Allopathic & Osteopathic Physicians

Classification Internal Medicine

Specialization Addiction Medicine

Section Individual

Directory Internal Medicine provider directory

Definition

An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

207R00000X Internal Medicine Physician 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) 207RC0001X Clinical Cardiac Electrophysiology Physician (Internal Medicine)

Frequently asked questions

What does taxonomy code 207RA0401X mean?

207RA0401X is the NUCC Health Care Provider Taxonomy code for Addiction Medicine (Internal Medicine) 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 207RA0401X?

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

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