NPPES file of Aug 9, 2026

Research Study Specialist in Missouri

10 NPPES records list research study specialist with a practice address in Missouri, 0.2 per 100,000 residents, the 11th highest rate of 41. Columbia and Saint Louis have the most; each record links to the provider's NPI and the Missouri 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).

Columbia has the most, 9

  1. Columbia9
  2. Saint Louis1

Research Study Specialist records in Missouri

  1. Jiankun Cui, M.D.Columbia, MO 652011215249859
  2. Mary Margaret (peggy Donovan, R.N., MSNSaint Louis, MO 631041356677173
  3. Olga Glinskii, M.D.Columbia, MO 652011467687608
  4. Vladislav Glinskii, MDColumbia, MO 652011922291756
  5. Zezong Gu, M.D., PH.D.Columbia, MO 652121699116319
  6. Jennifer Guo, M.D.Columbia, MO 652011386960722
  7. Yajun LiuColumbia, MO 652121487050217
  8. Ying PengColumbia, MO 652011902208028
  9. Patsharaporn Techasintana, M.D.Columbia, MO 652011376858183
  10. Jie ZhouColumbia, MO 652011619386828

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

Missouri ranks 11 of 41 per resident

  1. California0.2
  2. Kansas0.2
  3. Connecticut0.2
  4. Missouri0.2
  5. Nevada0.2
  6. Arizona0.1
  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.

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. Missouri0.0%
  2. United States4.3%

Research Study Specialist records in Missouri, measured

  • In a Medicare file0 of 10 · 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 · 100.0% 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 Missouri: 0.2 per 100,000 residents against 0.1 nationally (50 states and D.C.). Columbia has 9 of them (90%).

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. New Jersey10
  3. Arizona11
  4. Illinois12

States with a similar rate per 100,000

  1. North Carolina0.1
  2. Florida0.1
  3. New York0.1
  4. Pennsylvania0.1

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.