Taxonomy code 103TH0004X: Psychologist, Health

103TH0004X is the NUCC Health Care Provider Taxonomy code for Psychologist, Health, in the group Behavioral Health & Social Service Providers. It is one of the codes a provider lists on the NPI application to tell CMS and payers what they do.

Code

103TH0004X

Grouping

Behavioral Health & Social Service Providers

Classification

Psychologist

Specialization

Health

Section

Individual

NUCC version

26.1

Definition

A psychologist who specializes in clinical health psychology that investigates and implements clinical services across diverse populations and settings to promote health and well-being and to prevent, treat, and manage illness and disability. Clinical health psychology sees health as the confluence of psychological, social, cultural, and biological factors and applies this understanding to professional activities including:<br/>* Research<br/>* Clinical service<br/>* Consulting with, educating, and supervising other health care providers and psychologists<br/>* Advising organizations, institutions, the public, and policymakers

NUCC notes: Source: American Psychological Association, www.apa.org [1/1/2007: new, 7/1/2008: definition added, source added, 1/1/2019: definition modified, source modified] Additional Resources: The APA specialty is "Clinical Health Psychology."

Who uses this code

Psychologists: Psychologist, Health.

Get an NPI with this taxonomy

Two free ways. SimpleNPI files the application for you, and a person confirms the taxonomy before filing; the NPI usually arrives by email and text, with all the documentation, within 10 minutes. Or apply yourself at nppes.cms.hhs.gov and type the code into the taxonomy field. First, check the free registry in case you already have an NPI.

Option 1 · Free · Easiest

SimpleNPI files it for you

One short form: name, license, contact, address, identity and an e-signed authorization. About 3 minutes, no CMS account to create.
A person checks your license and address, then files the application with CMS under your signed authorization.
Your NPI arrives by email and text, with all the documentation, usually within 10 minutes. Filed after midnight Eastern? It issues around 6 am Eastern.

Usually within 10 minutes after the form is complete.

Start the free application

Option 2 · Free

Apply yourself at NPPES

Create an Identity & Access account at nppes.cms.hhs.gov.
Choose Apply for an NPI for myself, Individual (Type 1).
Enter identity, addresses, taxonomy code and license number, then certify and submit.

Usually a few business days; often minutes when the Social Security match passes.

Go to NPPES

Related codes in Psychologist

Code	Name
`103T00000X`	Psychologist
`103TA0400X`	Psychologist, Addiction (Substance Use Disorder)
`103TA0700X`	Psychologist, Adult Development & Aging
`103TC0700X`	Psychologist, Clinical
`103TC2200X`	Psychologist, Clinical Child & Adolescent
`103TB0200X`	Psychologist, Cognitive & Behavioral
`103TC1900X`	Psychologist, Counseling
`103TE1000X`	Psychologist, Educational
`103TE1100X`	Psychologist, Exercise & Sports
`103TF0000X`	Psychologist, Family
`103TF0200X`	Psychologist, Forensic
`103TP2701X`	Psychologist, Group Psychotherapy

Questions

Can I change my taxonomy code later?

Yes, for free, in your NPPES account. Add the new code with its license, make it primary, and remove the old one if it no longer applies. The NPI itself never changes.

Does 103TH0004X have to match my license?

It should describe the profession your license covers. Payers compare the taxonomy with the license during credentialing, and a mismatch slows that down.

Written by Ammon Hardin, LMT, who grew a massage practice to ten locations, built a veteran therapy network, and credentialed a large number of providers along the way. Updated Tue Oct 27, 2026. Free to read, free to use; SimpleNPI files NPI applications for free.