NUCC taxonomy code

103TA0400X - Addiction (Substance Use Disorder) Psychologist

103TA0400X is the NUCC provider taxonomy code for Addiction (Substance Use Disorder) Psychologist, a specialization within Psychologist (individual providers). 740 providers in our latest NPPES snapshot list it as their primary taxonomy.

740 providers · primary taxonomy

Code breakdown

Taxonomy code 103TA0400X

Display name Addiction (Substance Use Disorder) Psychologist

Grouping Behavioral Health & Social Service Providers

Classification Psychologist

Specialization Addiction (Substance Use Disorder)

Section Individual

Directory Psychologist provider directory

Definition

A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

103T00000X Psychologist 103TA0700X Adult Development & Aging Psychologist (Psychologist) 103TC0700X Clinical Psychologist (Psychologist) 103TC2200X Clinical Child & Adolescent Psychologist (Psychologist) 103TB0200X Cognitive & Behavioral Psychologist (Psychologist) 103TC1900X Counseling Psychologist (Psychologist) 103TE1000X Psychologist (Psychologist) 103TE1100X Exercise & Sports Psychologist (Psychologist)

Frequently asked questions

What does taxonomy code 103TA0400X mean?

103TA0400X is the NUCC Health Care Provider Taxonomy code for Addiction (Substance Use Disorder) Psychologist, a specialization of Psychologist 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 103TA0400X?

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

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