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 46 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. Anthony Griffin, MDJacksonville, IL 626501770558603
  2. Eric Griffin, M.D.Chicago, IL 606161881614469
  3. Jason Griffin, MDHinsdale, IL 605211275551582
  4. Catalina Grija, M.D.Oak Park, IL 603041770793143
  5. Andrea Grillini, MDMaywood, IL 601531588291801
  6. Trenton Grimm, MDSpringfield, IL 627021255746509
  7. Jeffrey Grinblatt, MDSkokie, IL 600761679580039
  8. Walter Grobelny, M.D.Winnetka, IL 600931740275015
  9. Daniel Grodinsky, M.D.Hines, IL 601411811931439
  10. Jacob Groenendyk, MDChicago, IL 606111639638505
  11. Lisa Groskopf, DOWinfield, IL 601901295753689
  12. James Grote, M.D.Pittsfield, IL 623631962475087
  13. Catherine Grotelueschen, M.D.Lombard, IL 601481346208428
  14. Gagandeep Grover, MDNorth Chicago, IL 600641003336660
  15. Gary Gruber, M.D.Chicago, IL 606111487693610
  16. Sarah Gruber, MDChicago, IL 606111710556998
  17. Natalia Grudzien, MDMaywood, IL 601531336726124
  18. Jordan Grumet, MDHighland Park, IL 600351093887705
  19. Kenneth Grumet, M.D.Evanston, IL 602021275564940
  20. Eli Grunblatt, MD, PHDChicago, IL 606111558010413
  21. Fiona Gruzmark, MDChicago, IL 606121396544961
  22. Daniel Grzegorek, D.O.Willowbrook, IL 605271487651337
  23. Seulgi Gu, MDChicago, IL 606571043055031
  24. Joseph Guan, MD, MPHOlympia Fields, IL 604611154986404
  25. Rui GuanPark Ridge, IL 600681588963771
  26. Nicholas Guastalli, DOKankakee, IL 609011275957334
  27. Bruce Guay, M.D.Hines, IL 601411396844171
  28. Aron Gudetta, MDChicago, IL 606121003708843
  29. Anuragh Gudur, MDChicago, IL 606111588246748
  30. Charlemagne Guerrero, M.D.Chicago, IL 606341871715540
  31. Raul Guerrero, MDOttawa, IL 613501053307660
  32. Rosalina Guerrero-Guzman, MDElgin, IL 601201013010628
  33. Augusto GuevaraOak Park, IL 603021962557686
  34. Javier Eduardo Guevara Alvarez, MDChicago, IL 606121831715861
  35. Alexandra Guevara-Salcedo, MDPeoria, IL 616371659500015
  36. Anthony Guglielmi, MDOak Lawn, IL 604531275157844
  37. Samantha Guhan, MDChicago, IL 606111043897838
  38. Michael Guignon, M.D.Shiloh, IL 622691942542931
  39. Sindhu Gujjari, MBBSMcHenry, IL 600501992558563
  40. Lisa Gulcher, M.D.Lake Zurich, IL 600471992728885
  41. Shan Guleria, MDChicago, IL 606371003438813
  42. Srinivas Gullapalli, M.D.Rockford, IL 611081932356763
  43. R GulleyPeoria, IL 616031316028855
  44. Nader Guma, MD, MPHChicago, IL 606161295447662
  45. Samindi Gunasekara, M.D.Joliet, IL 604351407155096
  46. Poojita Gundala, DOChicago, IL 606121750207718
  47. Madhu Gundavaram, M.D.Algonquin, IL 601021699796920
  48. Anjali Gundeti, DOOak Lawn, IL 604531679222509
  49. Mark Gunther, M.D.Chicago, IL 606121821170812
  50. Kuanghua Guo, MD, PHDChicago, IL 606571972996536

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.