NUCC taxonomy code

103TM1800X - Intellectual & Developmental Disabilities Psychologist

103TM1800X is the NUCC provider taxonomy code for Intellectual & Developmental Disabilities Psychologist, a specialization within Psychologist (individual providers). 1,234 providers in our latest NPPES snapshot list it as their primary taxonomy.

1,234 providers · primary taxonomy

Code breakdown

Taxonomy code 103TM1800X

Display name Intellectual & Developmental Disabilities Psychologist

Grouping Behavioral Health & Social Service Providers

Classification Psychologist

Specialization Intellectual & Developmental Disabilities

Section Individual

Directory Psychologist provider directory

Definition

Definition to come...

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

103T00000X Psychologist 103TA0400X Addiction (Substance Use Disorder) Psychologist (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)

Frequently asked questions

What does taxonomy code 103TM1800X mean?

103TM1800X is the NUCC Health Care Provider Taxonomy code for Intellectual & Developmental Disabilities 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 103TM1800X?

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

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