Intellectual & Developmental Disabilities Psychologist
1,234 active US providers register Intellectual & Developmental Disabilities Psychologist as their primary taxonomy. That is 0.01% of every provider in the registry, and the 362nd largest of 584 specialties with a page here.
- Taxonomy code
- 103TM1800X
- Grouping
- Behavioral Health & Social Service Providers
- Classification
- Psychologist
- Specialization
- Intellectual & Developmental Disabilities
- Active providers
- 1,234
- States covered
- 46 of 51
What the code means
Definition to come...
Definition quoted verbatim from the NUCC Health Care Provider Taxonomy code set, version 25.1. Not paraphrased.
Where they are
Counted by practice location, not by mailing address or by licence state. A provider practising across a state line is counted where they practise.
| State | Providers | Share |
|---|---|---|
| Delaware | 208 | |
| Ohio | 98 | |
| California | 90 | |
| New York | 76 | |
| Texas | 69 | |
| Florida | 67 | |
| North Carolina | 56 | |
| Michigan | 52 | |
| Maryland | 42 | |
| Pennsylvania | 36 | |
| New Jersey | 36 | |
| Minnesota | 34 | |
| Massachusetts | 29 | |
| Virginia | 28 | |
| Georgia | 28 |
Showing the 15 largest of 46 states with at least one.
Who registers under this code
942 of these are people and 292 are organisations, so 24% of the code is businesses rather than clinicians. Half of them had registered by 2018, and 450 registered in the last five years, 36% of the current population.
That is close to the pace of the registry as a whole.
Where the practices are
By practice-location city. City counts are noisier than state counts, because a large employer files one address for many providers.
- DOVER, DE35
- NEWARK, DE28
- SMYRNA, DE22
- CINCINNATI, OH19
- SAINT PAUL, MN19
- MIDDLETOWN, DE19
- HOUSTON, TX18
- BALTIMORE, MD15
- NEW CASTLE, DE13
- NEW YORK, NY13
What else they list
Providers whose primary code is Intellectual & Developmental Disabilities Psychologist most often carry these secondary taxonomies as well. This is the closest thing the registry has to a map of which specialties overlap in practice, and it is not published anywhere else.
| Also listed | Providers | Share |
|---|---|---|
| Cognitive & Behavioral Psychologist | 59 | 4.8% |
| Clinical Psychologist | 56 | 4.5% |
| Psychologist | 53 | 4.3% |
| Clinical Child & Adolescent Psychologist | 52 | 4.2% |
| Behavior Analyst | 32 | 2.6% |
| School Psychologist | 27 | 2.2% |
| Mental Health Counselor | 23 | 1.9% |
| Counseling Psychologist | 23 | 1.9% |
Nearby specialties
Other taxonomies NUCC files under Psychologist.
- Health Service Psychologist1,138
- Forensic Psychologist913
- Group Psychotherapy Psychologist807
- Rehabilitation Psychologist795
- Addiction (Substance Use Disorder) Psychologist740
- Prescribing (Medical) Psychologist583
Looking up a specific provider
These counts come from the monthly NPPES file. To check one provider, use their NPI: the lookup reads the live registry and shows whether the identifier is still active, which the monthly file cannot tell you about the last few weeks.
Counts from npidata_pfile_20050523-20260712.csv, built 2026-08-09. Primary taxonomy only, deactivated identifiers excluded.