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 3 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. Cody Brunclik, DODes Moines, IA 503141013301035
  2. Jolynn Bugbee, M.D.Sioux City, IA 511041801858774
  3. Brent Buhr, M.D.Waterloo, IA 507031194952200
  4. Jonathan Bui, MDWaterloo, IA 507021780115964
  5. Steven Bunge, MDDes Moines, IA 503091568460012
  6. John Burdakin, M.D.Cedar Rapids, IA 524011447210380
  7. Halie Burdick, MDIowa City, IA 522421235878505
  8. Katherine Burns, DOWest Des Moines, IA 502661164627204
  9. James Burton, MD, MSIowa City, IA 522421518588342
  10. Todd Butler, MDCedar Rapids, IA 524021710964994
  11. Stefano Byer, MDIowa City, IA 522421164108395
  12. Amy Callaghan, DOSioux City, IA 511011215924964
  13. Kristy Calland, DOAmes, IA 500101588939631
  14. Zhengjin Cao, M.D.Dubuque, IA 520011861616039
  15. Erin Capper, MDIowa City, IA 522421316831480
  16. Luke Carlson, MDMason City, IA 504011457092165
  17. Mark Carlson, M.D.Sioux City, IA 511051609837368
  18. Kent Carr, MDDes Moines, IA 503141114036340
  19. John Carstensen, MDDes Moines, IA 503091851378012
  20. Tyler Casey, MDWest Des Moines, IA 502661750368817
  21. Roberto Castro, MD.Sigourney, IA 525911083600050
  22. Paulene CayDes Moines, IA 503091548156326
  23. Maurice Champion, MDCoralville, IA 522411831191626
  24. Tze Chan, DONewton, IA 502081376579706
  25. Anju Chana, M.D.Davenport, IA 528011528408796
  26. Sanyogita Chandra, MDIowa City, IA 522421710671144
  27. Vimala Chandran, M.D.West Des Moines, IA 502661649263112
  28. Amanda Chang, MDIowa City, IA 522421952095481
  29. Christina Charis-Donelson, M.D.Coralville, IA 522411053388686
  30. Hashim ChaudhryIowa City, IA 522421134657679
  31. Ansub Cheema, MDDavenport, IA 528031477289254
  32. Kevin Chen, MDDes Moines, IA 503091356223002
  33. Tian Chen, MDIowa City, IA 522421033049804
  34. Kin-Kwan Cheuk, M.D.Marshalltown, IA 501581982787032
  35. Swarupa Chilakapati, MDWaterloo, IA 507021700349008
  36. Ronald Childerston, D.O.Pella, IA 502191518947985
  37. Jesse Chin, DODes Moines, IA 503091124696380
  38. David Solomon ChuaHawarden, IA 510231023268646
  39. Eunjin Chung, MDIowa City, IA 522421396907341
  40. Erica Cichowski, M.D.Council Bluffs, IA 515011033224290
  41. Vaughan Cipperly, MDMason City, IA 504011942235429
  42. Colin Clark, MDIowa City, IA 522421629903786
  43. Gregory Clark, MDAnkeny, IA 500211386730836
  44. Kyle Clay, MDDes Moines, IA 503141558949826
  45. Janielle CoblerIowa City, IA 522421417882291
  46. Nicholas Coffey, MD, MSIowa City, IA 522421093499063
  47. Ronald Collins, M.D.Oskaloosa, IA 525771851592018
  48. Mark Collison, M.D.Carroll, IA 514011336256130
  49. Joseph Compton, M.D.Davenport, IA 528061376512814
  50. Donald Conklin, M.D.Ottumwa, IA 525011285613323

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.