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 72 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. Marisa Lenga, MDChicago, IL 606371427817584
  2. James Lengemann, MDNaperville, IL 605401447247572
  3. Maria Lentzou, M.D.Palos Heights, IL 604631124071139
  4. Eduardo Leon Milan, MDChicago, IL 606081619860061
  5. Larry Leone, M.D.Benld, IL 620091124228762
  6. King Leong, MDChicago, IL 606571356521314
  7. Seng Leong, MDBarrington, IL 600101487750790
  8. David Lerner, MDGlenview, IL 600251366501132
  9. Apinya Lertratanakul, M.D.Chicago, IL 606571346496197
  10. Bradley LeshemChicago, IL 606111528776622
  11. Ashley Lester, MDChicago, IL 606121063254142
  12. Joseph LesusChicago, IL 606121477257574
  13. Jaroslaw Leszczak, MDPark Ridge, IL 600681588606222
  14. Claudia LeungChicago, IL 606371629467592
  15. Dominic Leung, MDChicago, IL 606041144230335
  16. Frank Leuzzi, MDMaywood, IL 601531528648458
  17. Andrey Lev-Weissberg, MDPark Ridge, IL 600681245206655
  18. Todd Leverentz, MDPalatine, IL 600671699708149
  19. Michael Levi, MDLake Bluff, IL 600441386755197
  20. Barry Levin, M.D.Lake Forest, IL 600451043324254
  21. Murray Levin, MDChicago, IL 606111396975900
  22. Barry Levine, M.D.Chicago, IL 606111588760557
  23. David Levine, MDSkokie, IL 600771265591036
  24. Matthew Levine, MDChicago, IL 606111134549058
  25. Cori Levinson, M.D.Northbrook, IL 600621356385389
  26. Dennis Levinson, M.D.Chicago, IL 606071720050016
  27. John LevinsonMaywood, IL 601531629659388
  28. Arielle Levitan, MDHighland Park, IL 600351902864499
  29. Victor Levitan, MDHighland Park, IL 600351912965401
  30. Ari Levy, MDChicago, IL 606371619146040
  31. Mark Levy, M.D.Skokie, IL 600771255433728
  32. Jennaire Lewars, MDUrbana, IL 618011831767896
  33. Eliza Lewine, MDMaywood, IL 601531558820423
  34. Katherine Lewinski, D.O.Glenview, IL 600261114108727
  35. Gerald Lewis, M.DDes Plaines, IL 600161225102478
  36. Hannah Lewis, MDChicago, IL 606121811821846
  37. Mark Lewis, MDGeneva, IL 601341811007925
  38. Gary Lewison, MDEast Dundee, IL 601181902892490
  39. Jessie Li, MDChicago, IL 606121316797335
  40. Wenting Li, DOPeoria, IL 616371508500570
  41. Jeffrey Liang, M.D.Peoria, IL 616151679540330
  42. Jingshu Liang, MDEvanston, IL 602021528746419
  43. Caryn Libbert, MDChicago, IL 606371447053574
  44. Sherry Licht, M.D.Chicago, IL 606121689612459
  45. Alex Lickerman, M.D.Chicago, IL 606061891905998
  46. David Liebovitz, MDChicago, IL 606371972564748
  47. Brian Liem, D.O.Maywood, IL 601531871892232
  48. Alazar Likassa, MDChicago, IL 606121518850916
  49. Rachel Lile King, MDChicago, IL 606111306784426
  50. Annabelle Lim, D.O.Chicago, IL 606431902991474

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.