Dental Providers / 1223S0112X
Individual · specialization · Medicare specialty 19
1223S0112X Oral and Maxillofacial Surgery (Dentist)
1223S0112X is the taxonomy code for Oral and Maxillofacial Surgery, 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. Medicare maps it to specialty 19, Oral Surgery (Dentist only), under which 3,692 practitioners are enrolled.
- 1Taxonomy code 1223S0112X
- 2Level Specialization
- 3Medicare specialty 19 Oral Surgery (Dentist only)
- 4Codes in this group 20
Definition
The specialty of dentistry which includes the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 1223S0112X sits
- Group: Dental Providers — code 13 of 20 in the group
- Classification: Dentist 122300000X
- Specialization: Oral and Maxillofacial Surgery 1223S0112X
Choose 1223S0112X over the general Dentist code (122300000X) when the provider's training or certification is specifically in oral and maxillofacial surgery; 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 1223S0112X to Medicare specialty 19 (Oral Surgery (Dentist only)). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 3,692 practitioners are enrolled under it nationally.
Related codes
| Code | Dentist — other specializations |
|---|---|
| 1223G0001X | General Practice |
| 1223P0106X | Oral and Maxillofacial Pathology |
| 1223X0008X | Oral and Maxillofacial Radiology |
| 125Q00000X | Oral Medicine |
| 1223X2210X | Orofacial Pain |
| 1223X0400X | Orthodontics and Dentofacial Orthopedics |
The nearest 6 of 13 other codes under Dentist; all are on the group page.
History of 1223S0112X
NUCC's notes record no dated changes for 1223S0112X. The code set is republished every January and July, when codes are added, retitled or marked inactive; this page reflects version 26.1, so check the NUCC site if you are reading it after the next release.
Similar codes in other groups
If 1223S0112X 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:
- 208C00000X Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians)
- 207ND0101X MOHS-Micrographic Surgery Physician (Allopathic & Osteopathic Physicians)
- 207T00000X Neurological Surgery Physician (Allopathic & Osteopathic Physicians)
- 207VF0040X Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician (Allopathic & Osteopathic Physicians)
- 207WX0200X Ophthalmic Plastic and Reconstructive Surgery Physician (Allopathic & Osteopathic Physicians)
- 204E00000X Oral & Maxillofacial Surgery (D.M.D.) (Allopathic & Osteopathic Physicians)
Find providers with 1223S0112X
Using 1223S0112X
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.