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 48 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. Ann Hagedorn, MDGreenville, IL 622461245237825
  2. Matthew Hageman, MDBelleville, IL 622211376540930
  3. Alan Hagen, MDCollinsville, IL 622341114946175
  4. Maryam HaghshomarChicago, IL 606401497644587
  5. Raffi Hagopian, M.D.Chicago, IL 606371104273671
  6. Robert Hahnel, MDRockford, IL 611031861502056
  7. Seth Hahs, MDSalem, IL 628811154542132
  8. Khola Hai, MDLong Grove, IL 600471275544009
  9. Ali Haider, M.D.Chicago, IL 606081538435060
  10. Ali HaiderUrbana, IL 618011306760913
  11. Baqer Haider, M.D.Urbana, IL 618011881009637
  12. Kumail Haider, DOChicago, IL 606051598460982
  13. Syed Haider, M.D.Crystal Lake, IL 600121912017898
  14. Amaris Hairston, MDChicago, IL 606121184419871
  15. Mala Hajat, MDOrland Park, IL 604671619071966
  16. Mahalakshmi Halasyamani, M.D.Evanston, IL 602011760441679
  17. David HallWashington, IL 615711578645347
  18. Emilee Hall, MDChicago, IL 606121356139356
  19. James Hall, MDChicago, IL 606111649263153
  20. Leo Hall, MDMaywood, IL 601531942274089
  21. Michael Hall, M.D.Libertyville, IL 600481528053972
  22. Paul HallidayChicago, IL 606121154067817
  23. Fred Halloran, MDHuntley, IL 601421568434942
  24. Sean HalloranChicago, IL 606111194575241
  25. Thomas Halloran, MDDanville, IL 618321588696785
  26. Caroline Halperin, D.O.Normal, IL 617611912928805
  27. Ira Halperin, D.O.Bloomington, IL 617041548352107
  28. Scott Halvorson, MDHighland, IL 622491407838444
  29. Jongho Ham, MDRolling Meadows, IL 600081720083777
  30. Mohammed Hamad, MDSpringfield, IL 627021306683164
  31. Susan Hamada, M.D.South Elgin, IL 601771982709705
  32. Omar Hamadi, MDChicago, IL 606571548006240
  33. Kyle Hamann, D.O.Kankakee, IL 609011992213458
  34. Aaron Hamb, M.D.Chicago, IL 606151861433039
  35. Syed Shah Qasim Hamdani, M.D, M.B.B.SSpringfield, IL 627021821836867
  36. Asim Hameeduddin, M.D.Chicago, IL 606111083770648
  37. Davin Hami, MDChicago, IL 606121710871405
  38. Nasreen Hamidani, M.D.La Grange Highlands, IL 605251851483812
  39. Claude Hamilton, M.D.Park Ridge, IL 600681518074087
  40. Zacharie HamiltonChicago, IL 606371295592574
  41. Michael HammondChicago, IL 606111366145070
  42. Ali Hammoud, MDChicago, IL 606111679159677
  43. Reem Hamoda, MD, MPHChicago, IL 606111851081699
  44. Thayer Hamoudah, M.D.Chicago, IL 606121568843209
  45. Haris Hamsakutty, M.D., M.SNorth Chicago, IL 600641912220864
  46. Jini Han, MDChicago, IL 606121669404240
  47. Chae Han - Chang, MDGurnee, IL 600311588777122
  48. James Hancock, M.D.Bloomington, IL 617011235116088
  49. Sean Haney, MDChicago, IL 606121700581691
  50. Lubna Hanif, MDChicago, IL 606571023801917

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.