NPPES file of Aug 9, 2026

Registered Nurse in Illinois

2,628 NPPES records list registered nurse with a practice address in Illinois, 21 per 100,000 residents, the 42nd highest rate of 51. Chicago and Waukegan have the most; each record links to the provider's NPI and the Illinois license search. Page 35 of 53.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163W00000X · 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, 566

  1. Chicago566
  2. Waukegan119
  3. Marion105
  4. Wheaton97
  5. North Chicago66

Registered Nurse records in Illinois

  1. Kenneth Obikili, REGISTERED NURSEChicago, IL 606401821390865
  2. Phillip Odle, MSN, RN-BCMarion, IL 629591417696568
  3. Vicki Odom, RNChicago, IL 606121285101014
  4. Princess OgoloChicago, IL 606261306764543
  5. Babatunde OgunfowokanEdwardsville, IL 620251619806296
  6. Melrose OgunleyePark Forest, IL 604661336097203
  7. Tara Ojeda, RNCollinsville, IL 622341780565770
  8. Mary Okeiyi, R.N.Chicago, IL 606161659738706
  9. Yetunde Okesanya, RNChicago, IL 606451144856345
  10. Amphone OlaizAddison, IL 601011215661293
  11. Titilayo OlanipekunOrland Park, IL 604621548094485
  12. Oyinkansola Olorunfemi, RNNorth Chicago, IL 600641184500993
  13. Cheryl Olson, RNVernon Hills, IL 600611538703087
  14. Ginger OlsonLindenhurst, IL 600461063163376
  15. Heidi Olson, FNPChicago, IL 606111093273831
  16. Laura Olson, RNRockford, IL 611081144850314
  17. Maura Olson, RNChampaign, IL 618221962253195
  18. Olivia Olson, RN,BSNChicago, IL 606571952112724
  19. Paige OltmannMarion, IL 629591841999638
  20. Olawale Olugbile, RNJoliet, IL 604351609750207
  21. Evelyn OndevillaDanville, IL 618321396348215
  22. Debra Oneil, RNWaukegan, IL 600851629113022
  23. Kathleen OneillWarrenville, IL 605551174403232
  24. Mary Rose Ong-Perez, RNGlendale Heights, IL 601391548614878
  25. Connie OnleyFreeport, IL 610321003549650
  26. Clara Onyenso, REGISTERED NURSECrete, IL 604171033382932
  27. Chisom Onyibor, RNSt Charles, IL 601751124899315
  28. Sharon OpoolaChicago, IL 606601881045342
  29. Kelly Orchard, DNP, AGACNP-BCWinfield, IL 601901205675352
  30. Marisol Ornelas, RNAddison, IL 601011265101034
  31. Jessica OrtegaPalos Heights, IL 604631861311805
  32. Karina OrtizWaukegan, IL 600851790346989
  33. Marissa Ortiz, BSN, RN-BC, AA-SANEChicago, IL 606081366232779
  34. Judith OrtmeyerGurnee, IL 600311033655857
  35. Kimberly Orvis, RNRoscoe, IL 610731396389573
  36. Yetunde Osakue-Allison, RNChicago, IL 606121255149969
  37. Lori OstickWheaton, IL 601871831586494
  38. Denise OstrowskiChicago, IL 606121184808768
  39. Durdaana OsuagwuChicago, IL 606121790579399
  40. Jacqueline OttGeneva, IL 601341003487943
  41. Brandon Otterson, RNBarrington, IL 600101033071691
  42. Michele Otto, RNMarion, IL 629591003515420
  43. Zainab Otun, RNChicago, IL 606211063908515
  44. Carolyn Owens, RNChicago, IL 606291073704888
  45. Sheridan Owens, RNChicago, IL 606401871221879
  46. Toni Owens, RNSesser, IL 628841053886036
  47. Joseph Padilla, RNRomeoville, IL 604461396912366
  48. Andrea Padron, BSNRockford, IL 611141285452995
  49. Mariane PagasChicago, IL 606111982541355
  50. Rosane PaimWoodridge, IL 605171336540764

Source: CMS NPPES, primary taxonomy 163W00000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 42 of 51 per resident

  1. Iowa26
  2. Missouri26
  3. Indiana22
  4. Illinois21
  5. Florida21
  6. Connecticut21
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 163W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

1.8% of these records appear in a Medicare file, against 1.5% 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. Illinois1.8%
  2. United States1.5%

Registered Nurse records in Illinois, measured

  • In a Medicare file46 of 2,628 · 1.8% here, 1.5% nationally
  • In the CMS Doctors and Clinicians file36 · 1.4% here, 1.0% nationally
  • Not updated in five years or more1,271 · 48.4% here, 57.2% nationally
  • Median graduation year2022 · the 36 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,628 NPPES records list registered nurse (163W00000X) as their primary taxonomy with a practice address in Illinois: 21 per 100,000 residents against 44 nationally (50 states and D.C.). Chicago has 566 of them (22%).

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. Maryland2,453
  2. Oregon2,449
  3. Arizona3,124
  4. North Carolina2,100

States with a similar rate per 100,000

  1. Florida20.9
  2. Connecticut20.8
  3. Indiana21.6
  4. Mississippi20.3

The largest states

  1. New York25,740
  2. California13,506
  3. Ohio9,656
  4. Texas8,921
  5. Washington5,708

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.