Health Service Psychologist: NPI taxonomy code 103TH0100X
Taxonomy code 103TH0100X is Psychologist: Health Service, in the Behavioral Health & Social Service Providers group.
1,150 active NPIs list it as their primary specialty (<0.1% of all).
| Code | 103TH0100X |
|---|---|
| Group | Behavioral Health & Social Service Providers |
| Classification | Psychologist |
| Specialization | Health Service |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 1,150 (961 individuals, 189 organizations) |
What NUCC says: A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is… (excerpt of the NUCC 26.1 definition)
Find Health Service Psychologist providers
Search the registry for providers listing Health Service. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| Massachusetts | 96 | 8.3% |
| California | 83 | 7.2% |
| Indiana | 77 | 6.7% |
| North Carolina | 70 | 6.1% |
| Texas | 68 | 5.9% |
| Oklahoma | 58 | 5.0% |
| Tennessee | 56 | 4.9% |
| Florida | 54 | 4.7% |
| Ohio | 51 | 4.4% |
| Michigan | 51 | 4.4% |
Top states by practice location, from the NPPES file of September 13, 2026.
Related specialties
- Clinical Psychologist 83,097
- Psychologist 57,773
- School Psychologist 16,136
- Counseling Psychologist 9,668
- Clinical Child & Adolescent Psychologist 5,820
- Cognitive & Behavioral Psychologist 2,414
- Intellectual & Developmental Disabilities Psychologist 1,248
- Forensic Psychologist 912
Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.