NPPES file of Aug 9, 2026

Research Study Specialist in Massachusetts

25 NPPES records list research study specialist with a practice address in Massachusetts, 0.4 per 100,000 residents, the 4th highest rate of 41. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts 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).

Boston has the most, 13

  1. Boston13
  2. Worcester3
  3. Waltham2
  4. Belmont1
  5. Burlington1

Research Study Specialist records in Massachusetts

  1. Tyler Broadfield, MSBoston, MA 021301538015441
  2. Jean-Francois Caubet, MDCambridge, MA 021381093311102
  3. Christopher Chen, MDBoston, MA 022151164367314
  4. Suely Fazio Ferraciolli, MD, PHDBoston, MA 021141205691854
  5. Elizabeth Fortescue, M.D., M.P.H.Boston, MA 021151376799049
  6. Madeline French, MBEWorcester, MA 016051427992726
  7. Asahi FujitaBoston, MA 021141518806116
  8. Felipe Furtado, MDBoston, MA 021141871248310
  9. Dana Gabuzda, M.D.Boston, MA 021151487856134
  10. Dennis Kasper, M.D.Boston, MA 021151972654606
  11. Nancy Kivel, M.D.Waltham, MA 024511821321530
  12. Nils Kruger, MDBoston, MA 021201245190081
  13. Charles Lee, PH.D.Boston, MA 021151154397008
  14. Lorianne Masuoka, M.D.Chestnut Hill, MA 024671790169100
  15. Robert Patterson, MDLexington, MA 024211265400964
  16. Sarah PolagrutoWorcester, MA 016551881554137
  17. Steven Reppert, M.D.Worcester, MA 016051902036528
  18. Seyed Reza Saadat Mostafavi, MDBoston, MA 022151366251514
  19. Paul Toselli, M.D., PH.D.Boston, MA 021181942343736
  20. Jennifer Truong, M.D., M.P.H.Boston, MA 021111760752828
  21. Diedrik Vermeulen, PHDBurlington, MA 018031265173231
  22. Alexander Walker, MDConcord, MA 017421306791827
  23. Thomas Wessel, MD, PHDLenox, MA 012401063762029
  24. Rinah Yamamoto, PH.D.Belmont, MA 024781730523960
  25. Leslie Zebrowitz, PH.D.Waltham, MA 024531033585245

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

Massachusetts ranks 4 of 41 per resident

  1. District of Columbia0.7
  2. Maryland0.5
  3. Minnesota0.4
  4. Massachusetts0.4
  5. Delaware0.3
  6. Colorado0.3
  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.

8.0% 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. Massachusetts8.0%
  2. United States4.3%

Research Study Specialist records in Massachusetts, measured

  • In a Medicare file2 of 25 · 8.0% here, 4.3% nationally
  • In the CMS Doctors and Clinicians file1 · 4.0% here, 0.9% nationally
  • Not updated in five years or more13 · 52.0% 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

25 NPPES records list research study specialist (1744R1102X) as their primary taxonomy with a practice address in Massachusetts: 0.4 per 100,000 residents against 0.1 nationally (50 states and D.C.). Boston has 13 of them (52%).

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. New York25
  2. Minnesota22
  3. Maryland31
  4. Florida33

States with a similar rate per 100,000

  1. Colorado0.3
  2. California0.2
  3. Missouri0.2
  4. Arizona0.1

The largest states

  1. California82
  2. Florida33
  3. Texas33
  4. Maryland31
  5. New York25

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.