NUCC taxonomy code

1223D0004X - Dental Anesthesiology

1223D0004X is the NUCC provider taxonomy code for Dental Anesthesiology, a specialization within Dentist (individual providers). 550 providers in our latest NPPES snapshot list it as their primary taxonomy.

550 providers · primary taxonomy

Code breakdown

Taxonomy code 1223D0004X

Display name Dental Anesthesiology

Grouping Dental Providers

Classification Dentist

Specialization Dental Anesthesiology

Section Individual

Directory Dentist provider directory

Definition

A dentist who has successfully completed an accredited postdoctoral anesthesiology residency training program for dentists of two or more years duration, in accord with Commission on Dental Accreditation's Standards for Dental Anesthesiology Residency Programs, and/or meets the eligibility requirements for examination by the American Dental Board of Anesthesiology.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

122300000X Dentist 1223D0001X Public Health Dentistry (Dentist) 1223E0200X Endodontics (Dentist) 1223G0001X General Practice Dentistry (Dentist) 1223P0106X Oral and Maxillofacial Pathology Dentistry (Dentist) 1223X0008X Oral and Maxillofacial Radiology Dentistry (Dentist) 1223S0112X Oral and Maxillofacial Surgery (Dentist) (Dentist) 125Q00000X Oral Medicine Dentistry (Dentist)

Frequently asked questions

What does taxonomy code 1223D0004X mean?

1223D0004X is the NUCC Health Care Provider Taxonomy code for Dental Anesthesiology, a specialization of Dentist in the "Dental Providers" grouping. It classifies individual providers.

Where is the taxonomy code used?

Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.

How do I find providers with taxonomy 1223D0004X?

Browse the Dentist directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-13.