Dental Providers / 125K00000X
Individual · classification
125K00000X Advanced Practice Dental Therapist
125K00000X is the taxonomy code for Advanced Practice Dental Therapist, 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.
- 1Taxonomy code 125K00000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 20
Definition
An Advanced Practice Dental Therapist is:<br/>(1) A dental therapist who has completed additional training beyond basic dental therapy education and provides dental services in accordance with state advanced practice dental therapist laws or statutes; or<br/>(2) A dental hygienist with a graduate degree in advanced dental therapy prepared for independent and interdependent decision making and direct accountability for clinical judgment across the dental health care continuum.<br/>The individual has been authorized by the relevant state board or a tribal entity to provide services under the remote supervision of a dentist. The functions of the advanced practice dental therapist vary based on the needs of the dentist, the educational preparation of the advanced practice dental therapist and state dental practice acts and regulations.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 125K00000X sits
- Group: Dental Providers — code 1 of 20 in the group
- Classification: Advanced Practice Dental Therapist 125K00000X
Advanced Practice Dental Therapist has no specializations, so 125K00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
125K00000X 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
No other codes share the classification Advanced Practice Dental Therapist. The rest of Dental Providers is on the group page.
History of 125K00000X
125K00000X was added to the code set in 2012.
- 2012-07-01 — new
Similar codes in other groups
If 125K00000X 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:
- 208D00000X General Practice Physician (Allopathic & Osteopathic Physicians)
- 207RA0001X Advanced Heart Failure and Transplant Cardiology Physician (Allopathic & Osteopathic Physicians)
- 101200000X Drama Therapist (Behavioral Health & Social Service Providers)
- 106H00000X Marriage & Family Therapist (Behavioral Health & Social Service Providers)
- 102X00000X Poetry Therapist (Behavioral Health & Social Service Providers)
- 163WG0000X General Practice Registered Nurse (Nursing Service Providers)
Find providers with 125K00000X
Using 125K00000X
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.