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 88 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. Shantesh Nalawadi, M.D.Park Ridge, IL 600681356781314
  2. Goutami Nallamothu, M.D.Springfield, IL 627031730418229
  3. Shilpa NamalaEvanston, IL 602011548102973
  4. Zachary NanChicago, IL 606371598523755
  5. Ahmad Nanaa, MDChicago, IL 606121356917454
  6. Janvi NanavatiMaywood, IL 601531003754342
  7. Kara Nance, M.D.Schaumburg, IL 601731346295763
  8. Bela Nand, M.D.Chicago, IL 606441174582670
  9. Kshitij NandaChicago, IL 606121386527406
  10. Jyoti Nandi, M.D.Park Ridge, IL 600681376791749
  11. Premalatha NandkumarElk Grove Vlg, IL 600071366471898
  12. Ravinderpal Nandra, M.D.Plano, IL 605451639358427
  13. Pooja Nangrani, MDPeoria, IL 616371316568116
  14. Keerthi NannapaneniSpringfield, IL 627021477030492
  15. Hassan Naom, M.D.Chicago, IL 606231255388542
  16. Jeffery Naour, MDHines, IL 601411346339470
  17. Rida Naqvi, MDChicago, IL 606121164253456
  18. Arun Narang, MDMcHenry, IL 600501952469215
  19. Parmod Narang, MDMcHenry, IL 600501023029717
  20. Sunita Narang, M.D.Wonder Lake, IL 600971306904644
  21. Mukund Narayan, MDChicago, IL 606471467535740
  22. Ashwin NarayananBerwyn, IL 604021518768936
  23. Meenalochani Narayanan, MDAurora, IL 605041639213242
  24. Ramkumar Narendran, MDChicago, IL 606121760221360
  25. Raymond Narh, M.DChicago, IL 606081205846300
  26. Annika Narotam, D.O.Chicago, IL 606251942693650
  27. Arti Narsinghani, MDEvanston, IL 602011326435660
  28. Suman Narumanchi, M.D.Oak Brook, IL 605231962449439
  29. Mehwash Naseem, MDChicago, IL 606541528405677
  30. Mehjabeen Naseer, DOChicago, IL 606251295099901
  31. Sameer Naseeruddin, M.D.Schaumburg, IL 601931578627964
  32. Dina Nashed, MDChicago, IL 606121053150763
  33. Saifullah Nasir, M.D.Schaumburg, IL 601731427343938
  34. Mohamed Nasr, M.D.Lake Villa, IL 600461316063399
  35. Susan NasrChicago, IL 606371316364250
  36. Mai Nasralla, MDChicago, IL 606121841184363
  37. Nadia Nasreen, M.D.Urbana, IL 618011780913228
  38. Hazem Nassar, M.D.Chicago, IL 606401740412246
  39. Taleb Nassri, MDChicago, IL 606161295539047
  40. Ashok NatarajanOak Lawn, IL 604531194279281
  41. Balaganesh NatarajanUrbana, IL 618011720835606
  42. Sameera Natarajan, MDHazel Crest, IL 604291659804417
  43. Brent Nathan, MDBannockburn, IL 600151639559719
  44. Norman Nathan, MDPeoria, IL 616041902813447
  45. Deepak Nathani, M.D.Mendota, IL 613421538125794
  46. Ajay Nattala, MBBSUrbana, IL 618011598689341
  47. Anuya Natu, MBBSChicago, IL 606121497594956
  48. Christopher Nau, MDChillicothe, IL 615231104023092
  49. Ahmad Nauman, M.D.Chicago, IL 606121073997672
  50. Kenneth Nave, MDChicago, IL 606201518117233

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.