Allopathic & Osteopathic Physicians / 207LA0401X
Individual · specialization · Medicare specialty 05
207LA0401X Addiction Medicine (Anesthesiology) Physician
207LA0401X is the taxonomy code for Addiction Medicine, a specialization of Anesthesiology, in the NUCC group “Allopathic & Osteopathic Physicians”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 05, Physician/Anesthesiology, under which 50,626 practitioners are enrolled.
- 1Taxonomy code 207LA0401X
- 2Level Specialization
- 3Medicare specialty 05 Physician/Anesthesiology
- 4Codes in this group 238
Definition
An anesthesiologist who specializes in the diagnosis and treatment of addictions.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 207LA0401X sits
- Group: Allopathic & Osteopathic Physicians — code 5 of 238 in the group
- Classification: Anesthesiology 207L00000X
- Specialization: Addiction Medicine 207LA0401X
Choose 207LA0401X over the general Anesthesiology code (207L00000X) when the provider's training or certification is specifically in addiction medicine; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 207LA0401X to Medicare specialty 05 (Physician/Anesthesiology). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 50,626 practitioners are enrolled under it nationally, and 5 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 207L00000X Anesthesiology Physician; 207LC0200X Critical Care Medicine (Anesthesiology) Physician; 207LH0002X Hospice and Palliative Medicine (Anesthesiology) Physician; 207LP2900X Pain Medicine (Anesthesiology) Physician; 207LP3000X Pediatric Anesthesiology Physician.
Related codes
| Code | Anesthesiology — other specializations |
|---|---|
| 207L00000X | Anesthesiology Physician |
| 207LC0200X | Critical Care Medicine |
| 207LH0002X | Hospice and Palliative Medicine |
| 207LP2900X | Pain Medicine |
The nearest 4 of 6 other codes under Anesthesiology; all are on the group page.
History of 207LA0401X
NUCC's earliest recorded change to 207LA0401X is from 2010 (definition added, source added).
- 2010-01-01 — definition added, source added
Similar codes in other groups
If 207LA0401X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:
- 101YA0400X Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers)
- 103TA0400X Addiction (Substance Use Disorder) Psychologist (Behavioral Health & Social Service Providers)
- 125Q00000X Oral Medicine Dentistry (Dental Providers)
- 163WA0400X Addiction (Substance Use Disorder) Registered Nurse (Nursing Service Providers)
- 163WC0200X Critical Care Medicine Registered Nurse (Nursing Service Providers)
- 173000000X Legal Medicine (Other Service Providers)
Find providers with 207LA0401X
Using 207LA0401X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.