NPPES file of Aug 9, 2026

Internal Medicine Physician in Iowa

871 NPPES records list internal medicine physician with a practice address in Iowa, 27 per 100,000 residents, the 45th highest rate of 51. Des Moines and Iowa City have the most; each record links to the provider's NPI and the Iowa license search. Page 18 of 18.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · method

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

Des Moines has the most, 226

  1. Des Moines226
  2. Iowa City215
  3. Waterloo37
  4. Mason City36
  5. Cedar Rapids33

Internal Medicine Physician records in Iowa

  1. Matthew Woodham, DOPella, IA 502191760621791
  2. William Wortman, MDAnkeny, IA 500211912293598
  3. Jeannett Wu, MDCoralville, IA 522411497705594
  4. Jeffrey WunderlichCedar Rapids, IA 524021881126852
  5. Sarah Wyler, DODes Moines, IA 503091437773314
  6. Alice Xu, MDIowa City, IA 522421700523461
  7. Fadi Yacoub, MDCedar Rapids, IA 524011285690412
  8. Avani Yaganti, MDIowa City, IA 522421669365037
  9. Md Samin Yasar, M.D.Waterloo, IA 507031881045417
  10. Phyo Su Yin, MDDes Moines, IA 503091033778352
  11. William Yost, MDDes Moines, IA 503091841277910
  12. Mark Young, MDDes Moines, IA 503091821226093
  13. Thomas Young, D.O.Creston, IA 508011386631828
  14. Soojoung Yu, M.D.Iowa City, IA 522421700771961
  15. Syed Muhammadhussain Zaidi, MDWest Burlington, IA 526551700451606
  16. Jehad Zeidalkilani, MDSioux City, IA 511011356912950
  17. Rodney Zeitler, M.D.Coralville, IA 522411437126281
  18. Hong Zhao, M.D.Iowa City, IA 522421497160683
  19. Adam Ziemann, M.D., PH.D.Iowa City, IA 522421851528095
  20. Leonid Zingman, MDIowa City, IA 522421285709899
  21. Mary Zmolek Beck, MDIowa City, IA 522421174597116

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Iowa ranks 45 of 51 per resident

  1. Texas30
  2. Montana29
  3. Oklahoma28
  4. Iowa27
  5. South Dakota27
  6. Arkansas25
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

69.8% of these records appear in a Medicare file, against 78.7% 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. Iowa69.8%
  2. United States78.7%

Internal Medicine Physician records in Iowa, measured

  • In a Medicare file608 of 871 · 69.8% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file386 · 44.3% here, 61.4% nationally
  • Not updated in five years or more405 · 46.5% here, 55.4% nationally
  • Median graduation year2008 · the 386 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

871 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Iowa: 27 per 100,000 residents against 44 nationally (50 states and D.C.). Des Moines has 226 of them (26%).

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. District of Columbia901
  2. Hawaii902
  3. Nebraska813
  4. Mississippi972

States with a similar rate per 100,000

  1. South Dakota26.9
  2. Oklahoma27.5
  3. Montana28.6
  4. Arkansas25.0

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.