NPPES file of Aug 9, 2026

Internal Medicine Physician in Illinois

7,238 NPPES records list internal medicine physician with a practice address in Illinois, 58 per 100,000 residents, the 9th highest rate of 51. Chicago and Maywood have the most; each record links to the provider's NPI and the Illinois license search. Page 52 of 145.

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).

Chicago has the most, 2,867

  1. Chicago2,867
  2. Maywood257
  3. Springfield196
  4. Evanston178
  5. Oak Lawn173

Internal Medicine Physician records in Illinois

  1. Ronald Hirsch, M.D.Elgin, IL 601231467450585
  2. Martha Hlafka, M.D.Springfield, IL 627021215162102
  3. Christopher Ho, DOGlenview, IL 600261053765040
  4. Connie Ho, M.D.Chicago, IL 606111679953541
  5. Dang Ho, M.D.Champaign, IL 618221669489217
  6. Duc Quynh Ho, DOPark Ridge, IL 600681578069456
  7. Lucy Ho, MDOak Lawn, IL 604531700807401
  8. Charbel Hobeika, MDChicago, IL 606121194456798
  9. Lester HockenberryHarvey, IL 604261538114715
  10. Dinah Hodge, MDChicago, IL 606121760187579
  11. James Hodges, M.D.Chicago, IL 606241659620029
  12. Debra Hoelscher, R.N.Maryville, IL 620621811258148
  13. John Hoelscher, MDAlton, IL 620021447267810
  14. Gene Hoerr, M.D.Peoria, IL 616141770857898
  15. Daniel Hoffman, MDMount Vernon, IL 628641134147432
  16. Michael Hoffman, MDChicago, IL 606111952529919
  17. Kelsey HolbertChicago, IL 606121215566930
  18. Elizabeth Holder, MDDecatur, IL 625261629123922
  19. Larry Holder, M.D.Springfield, IL 627021417914326
  20. Walter Hollinger, MDChicago, IL 606111750404968
  21. Edwin Hollins, MDBlue Island, IL 604061982721643
  22. Isaac Holmes, MDChicago, IL 606121689994881
  23. Thomas Holmes, M.D.Park Ridge, IL 600681689603110
  24. Ashlee Holst, D.O.Moline, IL 612651679892707
  25. Robert Holstein, MDChicago, IL 606111033225222
  26. Jonathan Holt, DOHighland Park, IL 600351720128259
  27. Hadassa Holzapfel, MDChicago, IL 606121124605597
  28. Theodore Homa, MDArlington Heights, IL 600041699710483
  29. Arman Homat, MDSpringfield, IL 627021982841110
  30. Michael Honan, M.D.Pekin, IL 615541255424750
  31. Ananth Honasoge, M.D.Chicago, IL 606161487671202
  32. Anne Hong, MDChicago, IL 606371437210267
  33. Eunsun HongChicago, IL 606251154253193
  34. Insup Hong, MDBerwyn, IL 604021588479968
  35. Jerome Hong, MDNaperville, IL 605401336115823
  36. Paul Hong, MDEvanston, IL 602011033795497
  37. Susan Hong, MDChicago, IL 606121346301173
  38. Wentao Hong, MDUrbana, IL 618011619463189
  39. Caleb HoogerheideMaywood, IL 601531275378234
  40. Torrie HookOak Lawn, IL 604531073364980
  41. Danielle Hoover, MD, MPHNorth Aurora, IL 605421407997927
  42. Leighton HopeChicago, IL 606111104627157
  43. Magdalena Hope, M.D.Glen Ellyn, IL 601371114246782
  44. Kate Hoppock, DOLisle, IL 605321407122419
  45. Tiffany Hor, M.D.Chicago, IL 606121063686053
  46. Hani Horani, MDMoline, IL 612651437237542
  47. Orest Horodysky, MDMokena, IL 604481689749475
  48. Joseph Horowitz, MDChicago, IL 606121275161804
  49. Kenneth Horowitz, M.D.Highland Park, IL 600351467568642
  50. Nicholas HorstChicago, IL 606121245931484

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

Illinois ranks 9 of 51 per resident

  1. Hawaii63
  2. New York62
  3. Delaware58
  4. Illinois58
  5. Michigan57
  6. Pennsylvania56
  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.

72.5% 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. Illinois72.5%
  2. United States78.7%

Internal Medicine Physician records in Illinois, measured

  • In a Medicare file5,251 of 7,238 · 72.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file3,584 · 49.5% here, 61.4% nationally
  • Not updated in five years or more3,434 · 47.4% here, 55.4% nationally
  • Median graduation year2003 · the 3,580 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

7,238 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Illinois: 58 per 100,000 residents against 44 nationally (50 states and D.C.). Chicago has 2,867 of them (40%).

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. Pennsylvania7,300
  2. Massachusetts6,825
  3. Michigan5,735
  4. Texas9,175

States with a similar rate per 100,000

  1. Delaware58.1
  2. New York61.7
  3. Hawaii62.9
  4. Maryland63.2

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.