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 37 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. Samuel Farbstein, MDOak Lawn, IL 604531629084116
  2. Gerald Farby, M.D.Chicago, IL 606591972504454
  3. Zarish Farid, MDSpringfield, IL 627021487586020
  4. Eric Farinas, M.D.Bloomington, IL 617011841277613
  5. Jeanne Farley-Li, M.D.Winnetka, IL 600931487745527
  6. Jean Farne, M.D.Chicago, IL 606251073617536
  7. Basheeruddin Farooki, MDChicago, IL 606251720038979
  8. Hina Farooq, MDChicago, IL 606401811418197
  9. Hannia FarooqiOlympia Fields, IL 604611972169274
  10. Sadaf Farooqi, MDKankakee, IL 609011366739013
  11. Samee Farooqi, DOOak Lawn, IL 604531922793413
  12. Mohammed Farooqui, D.O.Chicago, IL 606121659540516
  13. Usman FarooquiSpringfield, IL 627021982591699
  14. Abdurraheem Farrah, MDChicago, IL 606571437670718
  15. Richard Farrell, M.D.Galena, IL 610361861588360
  16. Tabassum Faruqi, M.D.Chicago, IL 606121013968536
  17. Subia Fasih, M.D.Burbank, IL 604591285740209
  18. Elbert Fasnacht, MDCarbondale, IL 629011790834828
  19. Adelina Fassakhova, MDEvanston, IL 602021568381218
  20. Eman FathalaChicago, IL 606571437953643
  21. Aelia Fatima, M.D.Chicago, IL 606121972950368
  22. Aqsa FatimaOlympia Fields, IL 604611235872623
  23. Naira Taiba FatimaSilvis, IL 612821659003754
  24. Shaheen Fatima, M.D.Chicago, IL 606451942242979
  25. Syeda FatimaChicago, IL 606121942901988
  26. Urooj Fatima, MDUrbana, IL 618011619383064
  27. Mina Fattah Khudhair, M.D.McHenry, IL 600501033809074
  28. Mazin Fattouhi, M.D.Long Grove, IL 600471639519309
  29. Maureen Fausone, MDChicago, IL 606291982223160
  30. Marlito Favila, M.D.Normal, IL 617611114945912
  31. Maureen Fearon, MDMaywood, IL 601531144294463
  32. Nia FeasterChicago, IL 606371154902443
  33. David Feerst, MDArlington Heights, IL 600051508931767
  34. Claudia Fegan, M.D.Chicago, IL 606121932211091
  35. Aron Feinberg, DONorthfield, IL 600931902967169
  36. Ronald Feingold, MDHighland Park, IL 600351114995966
  37. Jolan Fejes, M. D.Chicago, IL 606291891833075
  38. Susan Felber, M.D.Winfield, IL 601901326096637
  39. Marie Feldman, MDOak Park, IL 603041841386729
  40. Susan FeldtChicago, IL 606371861137432
  41. Rebekah Felicelli, MDChicago, IL 606121710509534
  42. Stuart Ferber, M.D.Buffalo Grove, IL 600891952389413
  43. Katelyn Ferguson, MDMaywood, IL 601531316649460
  44. Hubert Fernandes, MDChicago, IL 606511700877024
  45. Nerissa Fernandes, DOOak Lawn, IL 604531568040780
  46. Katia FernandezChicago, IL 606121497216972
  47. Mark Fernandez, M.D.Peru, IL 613541033114939
  48. Inti Fernandez Hoyos, MDChicago, IL 606081740807429
  49. Samuel Fernando, MDJustice, IL 604581023124930
  50. Helen Ferng, M.D.Bolingbrook, IL 604401033259205

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.