Dental Providers / 125Q00000X

Individual · specialization

125Q00000X Oral Medicine Dentistry

125Q00000X is the taxonomy code for Oral Medicine, a specialization of Dentist, in the NUCC group “Dental Providers”. It is a code for individual providers — the kind used on a Type 1 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.

24JNPI1234567893125Q00000XDentist1234
  1. 1Taxonomy code 125Q00000X
  2. 2Level Specialization
  3. 3Medicare specialty Not in the crosswalk
  4. 4Codes in this group 20
Code
125Q00000X
specialization
NPI type
Type 1
individual
Medicare specialty
—
no match in the CMS crosswalk
NUCC change log
2 changes
latest 2024

Definition

Oral Medicine is the specialty of dentistry responsible for the oral health care of medically complex patients and for the diagnosis and management of medically related diseases, disorders and conditions affecting the oral and maxillofacial region. Oral Medicine specialists have training and expertise in the diagnosis and management of oral and mucosal diseases, medical management of maxillofacial pathologies from hematology and oncology, organ transplant services, autoimmune disorders, including acute and chronic pain conditions of oral & maxillofacial region. Oral Medicine specialists co-manage oral and maxillofacial conditions and diseases in collaboration with medical specialists and other dentists in hospitals and outpatient medical clinics, particularly in the management of patients with complex medical conditions requiring multidisciplinary healthcare intervention.

— NUCC Health Care Provider Taxonomy, version 26.1

Where 125Q00000X sits

Choose 125Q00000X over the general Dentist code (122300000X) when the provider's training or certification is specifically in oral 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

125Q00000X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — the provider can still hold an NPI and use this code on claims to other payers.

Related codes

CodeDentist — other specializations
1223P0106XOral and Maxillofacial Pathology
1223X0008XOral and Maxillofacial Radiology
1223S0112XOral and Maxillofacial Surgery
1223X2210XOrofacial Pain
1223X0400XOrthodontics and Dentofacial Orthopedics
1223P0221XPediatric Dentistry

The nearest 6 of 13 other codes under Dentist; all are on the group page.

History of 125Q00000X

125Q00000X was added to the code set in 2015, and has been revised 1 time since.

Similar codes in other groups

If 125Q00000X 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:

Find providers with 125Q00000X

 

Using 125Q00000X

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). Checked 2026-10-24. Methodology.