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 51 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. Josia HenryWaukegan, IL 600851063709236
  2. Bruce Henschen, MDChicago, IL 606111184987273
  3. Xiaoying Hensel, M.D.Wilmette, IL 600911063411346
  4. Caroline Hensing, MDChicago, IL 606121649104050
  5. Richard Herbert, M.D.Oak Brook, IL 605231710045786
  6. Paula HerbstChicago, IL 606371710786280
  7. James Herdegen, MDChicago, IL 606121184737793
  8. Daniel Herdeman, MDRockford, IL 611141447293451
  9. Paul Hering, MDMaywood, IL 601531740361112
  10. Amy Herman, M.DNiles, IL 607141861698607
  11. David Herman, MDAntioch, IL 600021053304857
  12. Gail Herman, M.D.Niles, IL 607141457301871
  13. Haley Herman, MDChicago, IL 606121508329665
  14. Joseph Herman, MDMarion, IL 629591225066186
  15. Fernando Hernandez, MD SCChicago, IL 606121811911852
  16. Heberto Hernandez, MDHighland Park, IL 600351366419194
  17. Maria Hernandez, MDGalena, IL 610361588721419
  18. Michael Hernandez, M.D.Elgin, IL 601231972501096
  19. Rosita Hernandez, MDChicago, IL 606211184712887
  20. Elsa Hernandez-Outly, M.D.Des Plaines, IL 600161518078880
  21. Margaret Herr, MDChicago, IL 606371619818788
  22. Baudelio Herrada, MDBerwyn, IL 604021366466898
  23. James Herron, MDChicago, IL 606101174555361
  24. Richard Herron, MDPark Ridge, IL 600681417897810
  25. Bradley Hersh, M.D., M.P.H.Chicago, IL 606101316069321
  26. Jeffrey Hershkowitz, D.O.Galesburg, IL 614011922101104
  27. Leonard Hertko, M.D.Orland Park, IL 604621407090491
  28. Brian Hertz, M.D.Hines, IL 601411962445676
  29. Bruce Hertz, MDNiles, IL 607141124092259
  30. Rita Herzing, M.D.Glen Ellyn, IL 601371316103559
  31. Erin Hickey, M.D.Chicago, IL 606371780032441
  32. Ronald Hickombottom, M.DChicago, IL 606131023020989
  33. Sarah Hicks, M.D.Oak Lawn, IL 604531215063870
  34. Daniel Hidaka, M.D.Glenview, IL 600261215190764
  35. Mark Hieromnimon, MDMaywood, IL 601531558001081
  36. Shirley Higginbotham, M.D.Hines, IL 601411366450512
  37. Kelly Higgins, MDCarbondale, IL 629011356337133
  38. James Hildebrandt, D.O.Mattoon, IL 619381386750008
  39. Hana HillEvanston, IL 602021619109246
  40. Peter Hill, M.D.Chicago, IL 606571962445304
  41. Tami Hillis, M.D.Springfield, IL 627811467437459
  42. Audrey Hiltunen, MDMaywood, IL 601531679004824
  43. Keiki Hinami, M.D.Chicago, IL 606371437136785
  44. Daniel Hindmand, DOChicago, IL 606121821883067
  45. Joseph Hindo, M.D.Joliet, IL 604351245226885
  46. Susan Hingle, MDSpringfield, IL 627021124003124
  47. Louis Hiotis, M.D.Chicago, IL 606041710980339
  48. Stephen HipplerPeoria, IL 616151659451060
  49. Timothy HipskindGranite City, IL 620401265439640
  50. Rie Hirai, M.D.Maywood, IL 601531881089167

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.