NUCC taxonomy code

101YA0400X - Addiction (Substance Use Disorder) Counselor

101YA0400X is the NUCC provider taxonomy code for Addiction (Substance Use Disorder) Counselor, a specialization within Counselor (individual providers). 99,864 providers in our latest NPPES snapshot list it as their primary taxonomy.

99,864 providers · primary taxonomy

Code breakdown

Taxonomy code 101YA0400X

Display name Addiction (Substance Use Disorder) Counselor

Grouping Behavioral Health & Social Service Providers

Classification Counselor

Specialization Addiction (Substance Use Disorder)

Section Individual

Directory Counselor provider directory

Definition

Definition to come...

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

101Y00000X Counselor 101YM0800X Mental Health Counselor (Counselor) 101YP1600X Pastoral Counselor (Counselor) 101YP2500X Professional Counselor (Counselor) 101YS0200X School Counselor (Counselor) 106E00000X Assistant Behavior Analyst 106S00000X Behavior Technician 103K00000X Behavior Analyst

Frequently asked questions

What does taxonomy code 101YA0400X mean?

101YA0400X is the NUCC Health Care Provider Taxonomy code for Addiction (Substance Use Disorder) Counselor, a specialization of Counselor in the "Behavioral Health & Social Service 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 101YA0400X?

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

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