Allopathic & Osteopathic Physicians / 2083A0300X
Individual · specialization · Medicare specialty 84
2083A0300X Addiction Medicine (Preventive Medicine) Physician
2083A0300X is the taxonomy code for Addiction Medicine, a specialization of Preventive Medicine, 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 84, Physician/Preventive Medicine, under which 1,039 practitioners are enrolled.
- 1Taxonomy code 2083A0300X
- 2Level Specialization
- 3Medicare specialty 84 Physician/Preventive Medicine
- 4Codes in this group 238
Definition
A physician engaged in the subspecialty practice of Addiction Medicine who specializes in the prevention, evaluation, diagnosis, treatment, and recovery of persons with the disease of addiction.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 2083A0300X sits
- Group: Allopathic & Osteopathic Physicians — code 179 of 238 in the group
- Classification: Preventive Medicine
- Specialization: Addiction Medicine 2083A0300X
Choose 2083A0300X over the general Preventive Medicine code 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 2083A0300X to Medicare specialty 84 (Physician/Preventive Medicine). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 1,039 practitioners are enrolled under it nationally, and 9 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 2083A0100X Aerospace Medicine Physician; 2083B0002X Obesity Medicine (Preventive Medicine) Physician; 2083C0008X Clinical Informatics Physician; 2083P0011X Undersea and Hyperbaric Medicine (Preventive Medicine) Physician; 2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician; 2083P0901X Public Health & General Preventive Medicine Physician; 2083S0010X Sports Medicine (Preventive Medicine) Physician; 2083T0002X Medical Toxicology (Preventive Medicine) Physician; and 1 more.
Related codes
| Code | Preventive Medicine — other specializations |
|---|---|
| 2083A0100X | Aerospace Medicine |
| 2083C0008X | Clinical Informatics |
| 2083T0002X | Medical Toxicology |
The nearest 3 of 9 other codes under Preventive Medicine; all are on the group page.
History of 2083A0300X
2083A0300X was added to the code set in 2019.
- 2019-01-01 — new
Similar codes in other groups
If 2083A0300X 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 2083A0300X
Using 2083A0300X
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.