NPPES file of Aug 9, 2026

Intellectual & Developmental Disabilities Psychologist in Delaware

159 NPPES records list intellectual & developmental disabilities psychologist with a practice address in Delaware, 15.4 per 100,000 residents, the 1st highest rate of 45. Dover and Smyrna have the most; each record links to the provider's NPI and the Delaware license search. Page 4 of 4.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103TM1800X · method

Dover has the most, 30

Intellectual & Developmental Disabilities Psychologist records in Delaware

  1. Tracian WilliamsFrederica, DE 199461407695380
  2. Jacqueline WinderMagnolia, DE 199621215783105
  3. Ny'Ja WinderSeaford, DE 199731215504634
  4. Julius WoodlinMiddletown, DE 197091295657682
  5. Sheila WorthamNew Castle, DE 197201871195867
  6. Emmanuel YawsonDover, DE 199041174196448
  7. Faye YelvertonDover, DE 199011114534427
  8. Mary Ann YutzyMilford, DE 199631164026555
  9. Mabaindu ZeanDover, DE 199041083315196

Source: CMS NPPES, primary taxonomy 103TM1800X: records by practice city and the list of records, file of Aug 9, 2026.

Delaware ranks 1 of 45 per resident

  1. Delaware15.4
  2. Nebraska0.8
  3. Ohio0.8
  4. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 103TM1800X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against 0.8% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Delaware0.0%
  2. United States0.8%

Intellectual & Developmental Disabilities Psychologist records in Delaware, measured

  • In a Medicare file0 of 159 · 0.0% here, 0.8% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 1.7% nationally
  • Not updated in five years or more107 · 67.3% here, 58.7% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103TM1800X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

159 NPPES records list intellectual & developmental disabilities psychologist (103TM1800X) as their primary taxonomy with a practice address in Delaware: 15.4 per 100,000 residents against 0.3 nationally (50 states and D.C.). Dover has 30 of them (19%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Ohio91
  2. California71
  3. New York66
  4. Florida56

States with a similar rate per 100,000

  1. Nebraska0.8
  2. Minnesota0.5
  3. Michigan0.5
  4. Maryland0.4

The largest states

  1. Ohio91
  2. California71
  3. New York66
  4. Florida56
  5. Texas49

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

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.