NPPES file of Aug 9, 2026

Specialist in Iowa

123 NPPES records list specialist with a practice address in Iowa, 4 per 100,000 residents, the 51st highest rate of 51. Hiawatha and Dubuque have the most; each record links to the provider's NPI and the Iowa license search. Page 2 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 174400000X · method

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

Hiawatha has the most, 22

  1. Hiawatha22
  2. Dubuque11
  3. Des Moines9
  4. Cedar Rapids8
  5. Davenport8

Specialist records in Iowa

  1. Gregory Hoekstra, D.O.Waterloo, IA 507011710091251
  2. Dennis HoppCouncil Bluffs, IA 515031881673556
  3. George Isaac, M.D.Dubuque, IA 520021588652416
  4. Donald Johnson, MDCedar Rapids, IA 524021265491849
  5. Daniel Jorgensen, MDSpencer, IA 513011588634794
  6. Leslie KalkhoffCedar Rapids, IA 524021831058718
  7. Jerusa Kamala, MDDes Moines, IA 503161285601641
  8. Patty KeeleyDes Moines, IA 503141598382830
  9. Mark Kline, MDHiawatha, IA 522331003896176
  10. Mark Knabel, M.D.Dubuque, IA 520011598732489
  11. Joan Knockel, LCMTDubuque, IA 520021154533446
  12. Leslie Kramer, DOCedar Rapids, IA 524031649219346
  13. Michele Kreisberg Palmer, PTSioux City, IA 511011184672479
  14. Leann Krumwiede, PTASpirit Lake, IA 513601568764900
  15. Mandy KruseDubuque, IA 520031346877560
  16. Tracy LacinaCoralville, IA 522411952609034
  17. James Lauck, D.O.Sioux City, IA 511011235190067
  18. Nancy Lorenzini, MDHiawatha, IA 522331356321426
  19. Amanda LoweRose Hill, IA 525861114337748
  20. Natalie Lyons, BS, CADCDes Moines, IA 503141063790905
  21. Val Lyons, MDCharles City, IA 506161508834953
  22. Daniel Marko, MDIowa City, IA 522421629093968
  23. Stephen Maze, MDHiawatha, IA 522331669452181
  24. Shaun McCarthy, MA, LAT, ATCCedar Rapids, IA 524021659344612
  25. Heather McClellan, LPTWest Des Moines, IA 502651336238278
  26. Maureen McCue, M.D.Iowa City, IA 522451750494118
  27. Elizabeth McInerney, MDSioux City, IA 511011417918921
  28. Michelle McKernan, FCPIWest Des Moines, IA 502661790030401
  29. Walter Mendenhall, M.D.Spencer, IA 513011194799643
  30. James Moncherry, PHD, CNA, PBT, PMU-PWaukee, IA 502631891533022
  31. Jack MorlanWest Des Moines, IA 502651487094488
  32. Scott Murtha, MDHiawatha, IA 522331063492148
  33. Richard Neiman, MDIowa City, IA 522451124094974
  34. Heidi Nelson, DPTSioux City, IA 511061700173192
  35. Melinda O Shea, ARNPDavenport, IA 528031831205640
  36. Jason Ohr, M.D.Council Bluffs, IA 515031902908544
  37. Michelle Owens, OTR/LDavenport, IA 528031770972499
  38. John Parks, MDHiawatha, IA 522331881674984
  39. Amy Putney, M.A.Waterloo, IA 507021679915466
  40. Paul Quentzel, MDOttumwa, IA 525011952346736
  41. Stephen Quinlan, M.D.Des Moines, IA 503141588626212
  42. Thomas Reis, C.P.Johnston, IA 501311063432029
  43. Linda RenzeUrbandale, IA 503221790147122
  44. Sarah RileyIowa City, IA 522401578953451
  45. Rochel Rittgers, ATCBettendorf, IA 527221780650200
  46. Kristi Robson, MDCoralville, IA 522411730128653
  47. Bart Ross, ATC, LATWest Des Moines, IA 502661871529941
  48. Julie Saddler, MDHiawatha, IA 522331407836505
  49. Ted Schierer, PH.D.West Des Moines, IA 502661306379961
  50. Edward Schlenk, MDMarshalltown, IA 501581639125974

Source: CMS NPPES, primary taxonomy 174400000X: records by practice city and the list of records, file of Aug 9, 2026.

Iowa ranks 51 of 51 per resident

  1. Texas6
  2. Wisconsin5
  3. South Dakota4
  4. Iowa4
  5. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 174400000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

29.3% of these records appear in a Medicare file, against 17.0% 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. Iowa29.3%
  2. United States17.0%

Specialist records in Iowa, measured

  • In a Medicare file36 of 123 · 29.3% here, 17.0% nationally
  • In the CMS Doctors and Clinicians file28 · 22.8% here, 11.1% nationally
  • Not updated in five years or more104 · 84.6% here, 77.3% nationally
  • Median graduation year1988 · the 28 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 174400000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

123 NPPES records list specialist (174400000X) as their primary taxonomy with a practice address in Iowa: 4 per 100,000 residents against 18 nationally (50 states and D.C.). Hiawatha has 22 of them (18%).

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. Alaska126
  2. Montana127
  3. Delaware133
  4. District of Columbia151

States with a similar rate per 100,000

  1. South Dakota4.2
  2. Wisconsin4.6
  3. Texas5.6
  4. Indiana5.9

The largest states

  1. New York22,636
  2. California5,749
  3. Florida2,685
  4. Washington2,609
  5. Pennsylvania2,031

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.