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 90 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. Hong Thoai Nguyen, MDCarbondale, IL 629011487388534
  2. Khanh NguyenChicago, IL 606371245679240
  3. Minh Nguyen, DOMorton Grove, IL 600531326531138
  4. Phivu Nguyen, DOKankakee, IL 609011609369487
  5. Quang Tung Nguyen, M.D.Rock Island, IL 612011003259524
  6. Quynh Nguyen, MDChicago, IL 606401134615636
  7. Richard Nguyen, M.D.Mattoon, IL 619381053793174
  8. Zurain Niaz, MDSpringfield, IL 627021487213161
  9. Azfar Niazi, MDBloomington, IL 617011942879309
  10. Alexander Nichols, M.D.Arlington Heights, IL 600041699891440
  11. Natasha Nichols, M.D.Chicago, IL 606111487918470
  12. John Nicolas, MDChicago, IL 606111417940917
  13. Anthony Nidea, M.D.Elgin, IL 601231659496255
  14. Joshua Niebruegge, M.D.Belleville, IL 622261710140645
  15. Anne Niedenthal, MDWilmette, IL 600911215043674
  16. Mary NielsonChicago, IL 606111750043360
  17. Alejandro Nieto Dominguez, M.D.Chicago, IL 606121114665049
  18. Gaurav Nigam, MDFlora, IL 628391437445947
  19. John Nighswander, MDHinsdale, IL 605211124095583
  20. John Nikitas, MDEvanston, IL 602011730709171
  21. James Nikolakakis, D.ODes Plaines, IL 600161801968805
  22. James Nikoleit, MDLake In The Hills, IL 601561306813316
  23. Petar Nikolic, MDMaywood, IL 601531861296774
  24. Astrida Nikurs, MDWaukegan, IL 600851972588242
  25. Newsha Nikzad, MDChicago, IL 606371548954258
  26. Seshadri Bhargava Niladhuri, MDChicago, IL 606081154007334
  27. Boney Ninan, M.DChicago, IL 606121811204019
  28. Liana Nisimova, M.D.Chicago, IL 606111992159313
  29. George Nissan, DOChicago, IL 606421245222033
  30. Ninos Nissan, MDChicago, IL 606121639744493
  31. Ather Nizam, M.D.Chicago, IL 606441093851941
  32. Kiran Nizamani, MDChicago, IL 606571447954920
  33. Roman Niziolek, M.D.Chicago, IL 606401396729554
  34. Emmanuel Njoku, MDLibertyville, IL 600481689981045
  35. Franklin Njoku, M.D.Chicago, IL 606121518252386
  36. Courtney Noble, MDChicago, IL 606111336194711
  37. Alfonso Nobleza, M.D.Chicago, IL 606211326013236
  38. Ye Rim NohChicago, IL 606371043066178
  39. Yazan Noilaty, MDChicago, IL 606571669348314
  40. Carlos Nolasco Morales, M.D.Springfield, IL 627041235484866
  41. Alafia Nomani, MDAurora, IL 605041841290988
  42. Manogna Nookathota, MDCarbondale, IL 629011538575097
  43. Ahmed Noor, MDChicago, IL 606121215632872
  44. Hiba Noor, MDChicago, IL 606121366274011
  45. David Noparstak, M.D.Chicago, IL 606401912927146
  46. Maryannette Nora, M.D.Lincolnwood, IL 607121053339499
  47. Karen Noriega, MDChicago, IL 606161326270745
  48. Frances Norlock, D.O.Chicago, IL 606121982631602
  49. Michael Nosek, MDElmhurst, IL 601261598716656
  50. Shirene Nourbash, MDHines, IL 601411609802495

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.