Taxonomy code 1223S0112X: Dentist, Oral and Maxillofacial Surgery

1223S0112X is the NUCC Health Care Provider Taxonomy code for Dentist, Oral and Maxillofacial Surgery, in the group Dental Providers. It is one of the codes a provider lists on the NPI application to tell CMS and payers what they do.

Code

1223S0112X

Grouping

Dental Providers

Classification

Dentist

Specialization

Oral and Maxillofacial Surgery

Section

Individual

NUCC version

26.1

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 notes: Source: Council on Dental Education and Licensure, American Dental Association

Who uses this code

Dentists: Oral and Maxillofacial Surgery.

Get an NPI with this taxonomy

Two free ways. SimpleNPI files the application for you, and a person confirms the taxonomy before filing; the NPI usually arrives by email and text, with all the documentation, within 10 minutes. Or apply yourself at nppes.cms.hhs.gov and type the code into the taxonomy field. First, check the free registry in case you already have an NPI.

Option 1 · Free · Easiest

SimpleNPI files it for you

One short form: name, license, contact, address, identity and an e-signed authorization. About 3 minutes, no CMS account to create.
A person checks your license and address, then files the application with CMS under your signed authorization.
Your NPI arrives by email and text, with all the documentation, usually within 10 minutes. Filed after midnight Eastern? It issues around 6 am Eastern.

Usually within 10 minutes after the form is complete.

Start the free application

Option 2 · Free

Apply yourself at NPPES

Create an Identity & Access account at nppes.cms.hhs.gov.
Choose Apply for an NPI for myself, Individual (Type 1).
Enter identity, addresses, taxonomy code and license number, then certify and submit.

Usually a few business days; often minutes when the Social Security match passes.

Go to NPPES

Related codes in Dentist

Code	Name
`122300000X`	Dentist
`1223D0004X`	Dentist, Dental Anesthesiology
`1223D0001X`	Dentist, Dental Public Health
`1223E0200X`	Dentist, Endodontics
`1223G0001X`	Dentist, General Practice
`1223P0106X`	Dentist, Oral and Maxillofacial Pathology
`1223X0008X`	Dentist, Oral and Maxillofacial Radiology
`125Q00000X`	Dentist, Oral Medicine
`1223X2210X`	Dentist, Orofacial Pain
`1223X0400X`	Dentist, Orthodontics and Dentofacial Orthopedics
`1223P0221X`	Dentist, Pediatric Dentistry
`1223P0300X`	Dentist, Periodontics

Questions

Can I change my taxonomy code later?

Yes, for free, in your NPPES account. Add the new code with its license, make it primary, and remove the old one if it no longer applies. The NPI itself never changes.

Does 1223S0112X have to match my license?

It should describe the profession your license covers. Payers compare the taxonomy with the license during credentialing, and a mismatch slows that down.

Written by Ammon Hardin, LMT, who grew a massage practice to ten locations, built a veteran therapy network, and credentialed a large number of providers along the way. Updated Tue Oct 27, 2026. Free to read, free to use; SimpleNPI files NPI applications for free.