NPPES file of Aug 9, 2026

Research Study Specialist in New Jersey

10 NPPES records list research study specialist with a practice address in New Jersey, 0.1 per 100,000 residents, the 22nd highest rate of 41. East Orange and Flemington have the most; each record links to the provider's NPI and the New Jersey license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 1744R1102X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

East Orange has the most, 1

  1. East Orange1
  2. Flemington1
  3. Kenilworth1
  4. Morristown1
  5. Newark1

Research Study Specialist records in New Jersey

  1. Corrado Altomare, MDFlemington, NJ 088221275707663
  2. David Berman, MD, PHDPrinceton, NJ 085431851729602
  3. Gregory Di Russo, MDPrinceton Junction, NJ 085501316874233
  4. Femi Giwa, MBBS; MPHScotch Plains, NJ 070761629815816
  5. Stuart Green, MDKenilworth, NJ 070331811232572
  6. Howard Hutchinson, M.D.West Deptford, NJ 080961124340930
  7. Jim Khalifa, M.D.Morristown, NJ 079601639474117
  8. Xinju LiNewark, NJ 071031285504894
  9. Karen Quigley, PH.D.East Orange, NJ 070181245405141
  10. Matthew TierneyRahway, NJ 070651104416601

Source: CMS NPPES, primary taxonomy 1744R1102X: records by practice city and the list of records, file of Aug 9, 2026.

New Jersey ranks 22 of 41 per resident

  1. Ohio0.1
  2. Washington0.1
  3. Texas0.1
  4. New Jersey0.1
  5. Nebraska0.1
  6. Oklahoma0.1
  7. 50 states and D.C.0.1

Source: CMS NPPES, primary taxonomy 1744R1102X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

10.0% of these records appear in a Medicare file, against 4.3% 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. New Jersey10.0%
  2. United States4.3%

Research Study Specialist records in New Jersey, measured

  • In a Medicare file1 of 10 · 10.0% here, 4.3% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.9% nationally
  • Not updated in five years or more6 · 60.0% here, 66.7% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 1744R1102X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

10 NPPES records list research study specialist (1744R1102X) as their primary taxonomy with a practice address in New Jersey: 0.1 per 100,000 residents against 0.1 nationally (50 states and D.C.). East Orange has 1 of them (10%).

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. Georgia10
  2. Missouri10
  3. Arizona11
  4. Illinois12

States with a similar rate per 100,000

  1. Texas0.1
  2. Ohio0.1
  3. Pennsylvania0.1
  4. New York0.1

The largest states

  1. California82
  2. Florida33
  3. Texas33
  4. Maryland31
  5. Massachusetts25

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.