NPPES file of Aug 9, 2026

Research Study Specialist in Colorado

15 NPPES records list research study specialist with a practice address in Colorado, 0.3 per 100,000 residents, the 6th highest rate of 41. Aurora and Denver have the most; each record links to the provider's NPI and the Colorado 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).

Aurora has the most, 8

  1. Aurora8
  2. Denver5
  3. Littleton1
  4. Windsor1

Research Study Specialist records in Colorado

  1. Ana Brown-CohenAurora, CO 800141184924425
  2. Gary Elliott, PHARMD, PHDWindsor, CO 805501356903322
  3. Paul FennesseyAurora, CO 800451588170047
  4. Heidi Grove, M.A.Aurora, CO 800141932533478
  5. Vitaly KheyfetsAurora, CO 800451528922606
  6. Jack Klapper, MDDenver, CO 802181871936278
  7. Vijaya Knight, MD, PHDDenver, CO 802061790289122
  8. Tunuguntla Kumar, PHDAurora, CO 800451295568814
  9. Shawna McGuckin, BADenver, CO 802221215072111
  10. Jacques Okonji, PH.D.Denver, CO 802461972564888
  11. Emma RogersAurora, CO 800111891525036
  12. Jeanelle Sheeder, MSPH, PHDAurora, CO 800451861903320
  13. Geoffrey Urland, PH.D.Denver, CO 802471205227535
  14. Maryann WaughAurora, CO 800141205160959
  15. Greg ZurlaLittleton, CO 801271285587568

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

Colorado ranks 6 of 41 per resident

  1. Minnesota0.4
  2. Massachusetts0.4
  3. Delaware0.3
  4. Colorado0.3
  5. Iowa0.2
  6. California0.2
  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.

0.0% 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. Colorado0.0%
  2. United States4.3%

Research Study Specialist records in Colorado, measured

  • In a Medicare file0 of 15 · 0.0% here, 4.3% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.9% nationally
  • Not updated in five years or more10 · 66.7% 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

15 NPPES records list research study specialist (1744R1102X) as their primary taxonomy with a practice address in Colorado: 0.3 per 100,000 residents against 0.1 nationally (50 states and D.C.). Aurora has 8 of them (53%).

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. North Carolina16
  2. Ohio14
  3. Pennsylvania16
  4. Illinois12

States with a similar rate per 100,000

  1. California0.2
  2. Missouri0.2
  3. Massachusetts0.4
  4. Arizona0.1

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.