NPPES file of Aug 9, 2026

Psychiatry Physician in Illinois

2,147 NPPES records list psychiatry physician with a practice address in Illinois, 17 per 100,000 residents, the 15th highest rate of 51. Chicago and Springfield have the most; each record links to the provider's NPI and the Illinois license search. Page 29 of 43.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2084P0800X · 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, 841

  1. Chicago841
  2. Springfield96
  3. Maywood74
  4. North Chicago59
  5. Evanston48

Psychiatry Physician records in Illinois

  1. John Ngwe, M.D.Kankakee, IL 609011730250515
  2. Andy Nian, MDChicago, IL 606121811389653
  3. Carmel Nichols, MDChicago, IL 606111285193367
  4. Aiden Nicholson, CNM, APNChicago, IL 606321366849325
  5. Jessica Nicholson, D.O.Hazel Crest, IL 604291033435557
  6. Daisy Nie, MDChicago, IL 606011164841722
  7. Anne NielsenChicago, IL 606111447909155
  8. Arthur Nielsen, M.D.Chicago, IL 606111376550822
  9. Gaurav Nigam, MDUrbana, IL 618011316877418
  10. Sanjay Nigam, MDMaryville, IL 620621942278973
  11. Aftab Noorani, MDNorthbrook, IL 600621356370621
  12. Noorani Noorani, MDNorthbrook, IL 600621861522211
  13. Robert Norman, MDCentralia, IL 628011558579755
  14. Stephen Noronha, M.DChicago, IL 606121649388273
  15. Nelly Norrell, MDMaywood, IL 601531881897486
  16. Andrew NunezNorth Chicago, IL 600641902542020
  17. Carlos Nunez, M.D.Chicago, IL 606221497945331
  18. Victor Nutenko, MDSkokie, IL 600771346325404
  19. Thomas Nutter, MDMaywood, IL 601531619932266
  20. Obiefuna Nwabueze, MDUrbana, IL 618011982191219
  21. Trevor Nykamp, MD, MSChicago, IL 606121477300820
  22. Sydney Nyquist, MDSpringfield, IL 627811073409702
  23. Bienvenu Nzinga, M.DChampaign, IL 618211932635372
  24. Margaret O'BrienChicago, IL 606371134700495
  25. Thomas O'Brien, DOChampaign, IL 618201376122440
  26. Patrick O'Donnell, MDSpringfield, IL 627041336137330
  27. Katelyn O'Grady, MDChicago, IL 606121710661939
  28. Minna O'Leary, M.D.Peoria, IL 616361871560623
  29. Mir Obaid, M.D.Chicago, IL 606341336295088
  30. Alexander Obolsky, MDChicago, IL 606041376682476
  31. Betsy Obrien, MDChicago, IL 606401407172257
  32. Stacey Occomy, MDChicago, IL 606571215968755
  33. Ebuka Oduche, MDSpringfield, IL 627041396369211
  34. Babatunde Ogundipe, MD MPHRockford, IL 611041497911267
  35. Victoria OgunniyiChicago, IL 606371306787411
  36. Dong Gue Oh, MDChicago, IL 606121952966293
  37. Stanley Okon, M.D.Aurora, IL 605061023243334
  38. Jesutomilola Olayemi, MDSpringfield, IL 627811619712361
  39. Christine Olson, MDDeerfield, IL 600151245348952
  40. Erika Olson, MDOak Brook, IL 605231457746752
  41. Rachael Olson-Marszewski, MDMaywood, IL 601531427554369
  42. Louisa Olushoga, M.D.Oak Park, IL 603011386025088
  43. Nathan Ontrop, M.D.Chicago, IL 606021760778468
  44. Jason Onugha, MD, MPHChicago, IL 606611790311710
  45. Obiora Onwuameze, MD, MS, PHDSpringfield, IL 627021386806453
  46. Jeanne Oord, MDChicago, IL 606111417692518
  47. Joanne Orfei, DOOak Lawn, IL 604531497098230
  48. Julia Organ, MDMaywood, IL 601531356043640
  49. Ralph Orland, M.D.Wheaton, IL 601871265496681
  50. Anne Oscherwitz, MDChicago, IL 606011578643151

Source: CMS NPPES, primary taxonomy 2084P0800X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 15 of 51 per resident

  1. New Hampshire19
  2. Oregon18
  3. Michigan17
  4. Illinois17
  5. Minnesota17
  6. Colorado17
  7. 50 states and D.C.17

Source: CMS NPPES, primary taxonomy 2084P0800X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

69.4% of these records appear in a Medicare file, against 68.5% 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. Illinois69.4%
  2. United States68.5%

Psychiatry Physician records in Illinois, measured

  • In a Medicare file1,490 of 2,147 · 69.4% here, 68.5% nationally
  • In the CMS Doctors and Clinicians file878 · 40.9% here, 42.4% nationally
  • Not updated in five years or more1,148 · 53.5% here, 56.2% nationally
  • Median graduation year2004 · the 877 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2084P0800X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,147 NPPES records list psychiatry physician (2084P0800X) as their primary taxonomy with a practice address in Illinois: 17 per 100,000 residents against 17 nationally (50 states and D.C.). Chicago has 841 of them (39%).

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. Michigan1,729
  2. North Carolina1,725
  3. Pennsylvania2,662
  4. Ohio1,587

States with a similar rate per 100,000

  1. Minnesota17.0
  2. Colorado16.8
  3. Alaska16.6
  4. South Carolina16.6

The largest states

  1. California8,673
  2. New York6,589
  3. Texas3,318
  4. Florida2,744
  5. Massachusetts2,736

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.