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 127 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. Danny Sugimoto, MDChicago, IL 606071679661821
  2. Anne Suh, MDChicago, IL 606021104852722
  3. Terry Sukenik, M.D.Chicago, IL 606401568493799
  4. Mohamad Hekmat Sukkari, MDSpringfield, IL 627021295301042
  5. Talat SuleimanChicago, IL 606121629536099
  6. Erin Sullivan, MDChicago, IL 606111942068358
  7. Mary Sullivan, M.D.Oak Lawn, IL 604531437168416
  8. Terence Sullivan, MDChicago, IL 606041073571584
  9. Denise Sulo, M.D.Chicago, IL 606111417248212
  10. Robert Sulo, MDMokena, IL 604481285608315
  11. Fatima Sultan, M.D.Chicago Hts, IL 604111275570194
  12. John SultanHighland Park, IL 600351447228242
  13. Thomas Sultan, MDGlenview, IL 600261306958798
  14. Ayesha Sultana, MDLincolnwood, IL 607121619431970
  15. Priyanka Sultania Dudani, MDRiverside, IL 605461316255847
  16. Nina Sultanian, MDArlington Heights, IL 600051497835219
  17. Seta Sultanian, M.D.Arlington Heights, IL 600051487671327
  18. Sydney SummerlinChicago, IL 606111639019995
  19. Jasmine Sun, MDChicago, IL 606111356043327
  20. Kai Sun, M.D.Chicago, IL 606111568758001
  21. Michael Sun, MDChicago, IL 606111124718416
  22. Wenjia Sun, MDUrbana, IL 618011992489181
  23. Allia Sunbulli, PA-CEvergreen Park, IL 608051942921747
  24. Sumuk Sundaram, M.D.Champaign, IL 618221275542912
  25. Subashini Sundararajan, M.B.B.S.Urbana, IL 618011992687354
  26. Gayathri Sundaresan, M.D.Chicago, IL 606571114986650
  27. Marcos Sunga, MDRosiclare, IL 629821255331625
  28. Praveen Sunkara, M.D.Melrose Park, IL 601601841438967
  29. Sijo SunnyDanville, IL 618321508489543
  30. Montha Suphangul, M.D.Evanston, IL 602021548424229
  31. Palaniappan Suppiah, MDSalem, IL 628811902986730
  32. Parimal Sura, M.D.Oak Lawn, IL 604531558687756
  33. Balarama SurapaneniRockford, IL 611081003311648
  34. Hemantha Surath, M.DChicago, IL 606571821166554
  35. Aditya Suresh, M.B.B.SMcHenry, IL 600501285422501
  36. Arcot Suresh, MDOlney, IL 624501265440283
  37. Ragha SureshChicago, IL 606371912491812
  38. Aleksandar Surjancev, MDChicago, IL 606571326798737
  39. Arminio Surucci, M.D.Lincolnwood, IL 607121902894918
  40. Narcisa Surucci, M.D.Lincolnwood, IL 607121467440479
  41. Aparna Suryadevara, MDSpringfield, IL 627021649492968
  42. Viswanatham Susarla, M.D.Elgin, IL 601201922014315
  43. Ammu SusheelaOak Park, IL 603021841842788
  44. Nanthini Suthan, M.DHighland, IL 622491053504506
  45. Sambasivam Suthan, M.DHighland, IL 622491144413691
  46. Joseph Sutherland, M.D.Naperville, IL 605631841455326
  47. Joshua SutherlandPark Ridge, IL 600681952051500
  48. Matthew SutherlandKankakee, IL 609011891310991
  49. Marybeth Sutkowski, MDAurora, IL 605061447369293
  50. Allan Sutow, MDMorton Grove, IL 600531568597441

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.