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 99 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. Eddie Paulk, D.O.Maryville, IL 620621003813601
  2. Tyler Pauly, MDChicago, IL 606111639017817
  3. Marianne Pavach, M.D.Chicago, IL 606011639205594
  4. Rita Pavate, MDKankakee, IL 609011457429359
  5. Sandeep PavuluriChicago, IL 606401235819186
  6. Scott Pawlikowski, M.D.Hines, IL 601411720187594
  7. Ireneusz Pawlowski, MDChicago, IL 606181588774616
  8. Thomas Pawlowski, M.D.Chicago, IL 606121093867921
  9. Carolyn Payne, M.D.Chicago, IL 606371508247602
  10. Kyra Payne, M.D.Chicago, IL 606521487864542
  11. Dennis Peacock, MDChicago, IL 606571023223021
  12. Marilyn Pearson, MDChicago, IL 606031144267626
  13. Lisa Peck, M.D.Deerfield, IL 600151679539563
  14. Paul Pecorin, MDChicago, IL 606121699464735
  15. Wolf Peddinghaus, M.D.Skokie, IL 600761487640660
  16. Natalie Pedersen, M.D.Peoria, IL 616141538518923
  17. Paul PedersenBloomington, IL 617041053403675
  18. Gustavo Pedraza, M.D.Channahon, IL 604101194811943
  19. Monica Peek, M.D., M.P.H.Chicago, IL 606371841247277
  20. Lori Pegram, MDBloomington, IL 617011215947171
  21. Marvin Peiken, MDRolling Meadows, IL 600081790780765
  22. Joel PekowChicago, IL 606371902896566
  23. Zachary Pellis, MDChicago, IL 606371295424828
  24. Mehul Pema, DOEvanston, IL 602011780621524
  25. Oscar-Ruben Pena-Vizcarra, MDChicago, IL 606121700631058
  26. Jose Penaherrera, M.D.New Lenox, IL 604511073649141
  27. Douglas Penate, M.D.Chicago, IL 606111326337395
  28. Chad Pendley, M.D.Downers Grove, IL 605151811258734
  29. Sanjay Penmetcha, M.D.Chicago Heights, IL 604111568489185
  30. Alexander Penrice, MDChicago, IL 606121649859240
  31. Anthony Pensa, MDChicago, IL 606111639624802
  32. Eileen Pentony, MDDowners Grove, IL 605151659437457
  33. Bruce Peoples, M.D.Chicago, IL 606441063546240
  34. Olga Peplos, MDMorris, IL 604501891873113
  35. Elaine Peplow, MDHines, IL 601411386803427
  36. Michael Peplow, D.O.Elk Grove Village, IL 600071851607634
  37. Constantino Perales, M.D.Peru, IL 613541417942376
  38. Francina Peralta Machado, MDChicago, IL 606321508181108
  39. Maria Peralta Rosales, MDChicago, IL 606571780503375
  40. Dana Peres Edelson, M.D., MSChicago, IL 606371255528535
  41. Aldo Perez, MDChicago, IL 606121083540546
  42. Manuel Perez, M.D.Hoffman Estates, IL 601941750319034
  43. Cristina Perez Gomez, MDCrest Hill, IL 604031568718526
  44. Estefania Perez Luna, MDChicago, IL 606371154262137
  45. Jose Perez Porcel, MDChicago, IL 606571427289917
  46. Charles Perez SuarezChicago, IL 606121477341253
  47. Eric Perkey, MDChicago, IL 606371639814254
  48. Neil Perlman, MDChicago, IL 606181245238344
  49. Robert Perlmuter, M.D.Chicago, IL 606421366546509
  50. Julio Pernia-Cuberos, MDChicago, IL 606231679067672

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.