Intellectual & Developmental Disabilities Psychologist providers in the U.S.
952 NPPES records list intellectual & developmental disabilities psychologist as their primary taxonomy, about 0.3 per 100,000 residents; Delaware and Ohio have the most per resident. 1 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 103TM1800X means
103TM1800X is the National Uniform Claim Committee code for Psychologist, Intellectual & Developmental Disabilities, in the grouping Behavioral Health & Social Service Providers. 952 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 103TM1800X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Dover has the most, 30
Source: CMS NPPES, primary taxonomy 103TM1800X by practice city, file of Aug 9, 2026.
All 45 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 6 | 0.1 |
| Alaska | 2 | 0.3 |
| Arizona | 15 | 0.2 |
| Arkansas | 5 | 0.2 |
| California | 71 | 0.2 |
| Colorado | 17 | 0.3 |
| Connecticut | 6 | 0.2 |
| Delaware | 159 | 15.4 |
| District of Columbia | 1 | 0.1 |
| Florida | 56 | 0.2 |
| Georgia | 20 | 0.2 |
| Idaho | 2 | 0.1 |
| Illinois | 18 | 0.1 |
| Indiana | 13 | 0.2 |
| Iowa | 4 | 0.1 |
| Kansas | 4 | 0.1 |
| Kentucky | 6 | 0.1 |
| Louisiana | 10 | 0.2 |
| Maine | 6 | 0.4 |
| Maryland | 24 | 0.4 |
| Massachusetts | 25 | 0.4 |
| Michigan | 48 | 0.5 |
| Minnesota | 29 | 0.5 |
| State | Records | Per 100,000 |
|---|---|---|
| Mississippi | 4 | 0.1 |
| Missouri | 11 | 0.2 |
| Nebraska | 16 | 0.8 |
| Nevada | 6 | 0.2 |
| New Hampshire | 2 | 0.1 |
| New Jersey | 26 | 0.3 |
| New York | 66 | 0.3 |
| North Carolina | 42 | 0.4 |
| North Dakota | 1 | 0.1 |
| Ohio | 91 | 0.8 |
| Oklahoma | 4 | 0.1 |
| Oregon | 8 | 0.2 |
| Pennsylvania | 24 | 0.2 |
| Rhode Island | 3 | 0.3 |
| South Carolina | 5 | 0.1 |
| Tennessee | 15 | 0.2 |
| Texas | 49 | 0.2 |
| Vermont | 2 | 0.3 |
| Virginia | 15 | 0.2 |
| Washington | 5 | 0.1 |
| West Virginia | 1 | 0.1 |
| Wisconsin | 4 | 0.1 |
In federal data
- NUCC code103TM1800X · Psychologist
- Size rank274th of 688 specialties by records (0.01% of all)
- In its family8th of 18 Psychologist codes, 0.6% of the family
- Part D prescribers1 (0.1% of records)
- Part D claims56 a year per prescriber, on average (403rd of 496)
- Concentration6 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of intellectual & developmental disabilities psychologist records
- Jacqueline TilleryAnchorage, AK1578211496
- Seung ParkAnchorage, AK1215277124
- Garrett MurrayBessemer, AL1629744750
- Natasha ScottPinson, AL1588584262
- Erich Grommet, PH.D.Birmingham, AL1053020065
- Antonio WilliamsCenter Point, AL1477242337
- Jenny Reed, MS, BCBAMentone, AL1790949717
- Althelda StallworthMobile, AL1154833499
- Wendy Lynch, LPEBryant, AR1811193089
- Neil McKnight, SPS, LPEConway, AR1578200721
- Karen McKnightConway, AR1164152138
- Vicki Grantham, M.S.Little Rock, AR1447028501
- Nina McIntyre, LPE-I, SPSLittle Rock, AR1588978886
- Joseph Gentry, PH.D.Phoenix, AZ1457501876
- Deborah MeehlingPhoenix, AZ1629101183
- Patricia McGuire, PSYDPhoenix, AZ1700339835
Registry order, not a ranking. Search by name to find one provider.
Common questions
How should I read Intellectual & Developmental Disabilities Psychologist's mid-pack national roster?
952 CMS-registered Intellectual & Developmental Disabilities Psychologist providers sit across 46 states; Delaware leads with 159. Leading metros: Dover, DE; Smyrna, DE; Saint Paul, MN; Cincinnati, OH. Rank 274th of 688 NUCC specialties by headcount.
Where can I find an Intellectual & Developmental Disabilities Psychologist provider?
Intellectual & Developmental Disabilities Psychologist providers are listed in 46 states; Dover leads by raw city count. By national headcount this code sits just above Health Information Technician and just below Sports Physical Therapist. Browse by state or search by name.
How much Part D prescribing does this specialty do?
Among Intellectual & Developmental Disabilities Psychologist NPIs, 1 appear in the Medicare Part D Prescriber PUF (average 56 claims and $2K drug cost per prescriber; 403rd of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.