NPPES file of Aug 9, 2026

Specialist in Illinois

1,154 NPPES records list specialist with a practice address in Illinois, 9 per 100,000 residents, the 35th highest rate of 51. Chicago and Evanston have the most; each record links to the provider's NPI and the Illinois license search. Page 20 of 24.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 174400000X · 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, 231

  1. Chicago231
  2. Evanston36
  3. Rockford21
  4. Freeport20
  5. Naperville20

Specialist records in Illinois

  1. Stacy Simek, MS, DT-H, LSLS CERT.Schaumburg, IL 601931861662298
  2. Shelley Simmering, CPEDSt Charles, IL 601741790942183
  3. Diane Simpson, EDDCountry Club Hills, IL 604781497076764
  4. Stanley SimsTinley Park, IL 604771154460913
  5. Rama Singh, MDOak Lawn, IL 604531811050495
  6. Angela Sisson, PTASycamore, IL 601781225370851
  7. Bhavani Sivarajan, M.D.Joliet, IL 604351396711701
  8. Sylvia SiwinskiMundelein, IL 600601265603286
  9. Gary Skaletsky, M.D.Sugar Grove, IL 605541689916223
  10. Kathleen Skoli, D.N.Fox Lake, IL 600201902927254
  11. Lisa Skowron, MAMS, BCO, BADO, CCALake Zurich, IL 600471174720452
  12. Kristi SkudrnaRomeoville, IL 604461164196721
  13. Katherine Slattery, B.S.ED.La Grange, IL 605251942348586
  14. Rosamaria Slominski, PTLake Forest, IL 600451417157835
  15. Kirsi SmithFreeport, IL 610321093933582
  16. Sheralyn Smith, DTTinley Park, IL 604771598988297
  17. Stephanie SmithJohnsburg, IL 600511477312577
  18. Susan Snapp, LCSWChicago, IL 606151770633885
  19. Marti Snittjer, CNSChicago, IL 606741730168691
  20. Stephanie Snyder, BACHELORS OF SCIENCENew Berlin, IL 626701598082257
  21. Agnieszka Sobecka, DEVELOP THERAPISTShorewood, IL 604041598934234
  22. Kellie Solis, DTBeecher, IL 604011215151436
  23. Samuel Solomon, M.D.Gurnee, IL 600311558316281
  24. Alexander Sosenko, M.D.Joliet, IL 604351851383780
  25. Donald SouleEvanston, IL 602011871679217
  26. Estella SpainElmhurst, IL 601261053712521
  27. Jennifer Speckman, PTYorkville, IL 605601528112638
  28. David Spindel, M.D.Evanston, IL 602021003892985
  29. George Sreckovic, M.D.Chicago Ridge, IL 604151629067038
  30. Renae St.clair, ATCRichmond, IL 600711881669547
  31. Kristin Stahlheber, DVMEdwardsville, IL 620251891356176
  32. Shannon Stallworth, L.M.T,NCTMBMattoon, IL 619381013190297
  33. Terry Stanek, MSPTElmwood Park, IL 607071972673150
  34. Kathleen Stanton, OTRLChicago, IL 606251790814259
  35. Elizabeth Stapleton, CPEBloomingdale, IL 601081174195176
  36. Amy Staszewski, PTAGeneva, IL 601341245504059
  37. John Steiger, LPTALincoln, IL 626561033366950
  38. Michael Stein, MDEvanston, IL 602011346240728
  39. Tracy Stephen, ATC/LATNaperville, IL 605401477513620
  40. Daniel Stephens, ATCCollinsville, IL 622341083681894
  41. Leia Stephens, LMTLindenhurst, IL 600461538431606
  42. Susan Stevenson, MS, ATC/LRockford, IL 611081962470013
  43. Kelly Stiles, LMTStreator, IL 613641851552012
  44. Rose Straeter, IBCLCMount Vernon, IL 628641679781637
  45. Rachel Strauss, M.A, MT-BCChicago, IL 606141679886212
  46. Patricia Stringer, MDArlington Heights, IL 600041033115423
  47. Scott Strote, M.D.Oak Lawn, IL 604531790894798
  48. Alan Stutz, M.D.Springfield, IL 627041457470106
  49. Martha Suarez, L.M.TRomeoville, IL 604461689951584
  50. Gerard Sublette, M.D.Elmhurst, IL 601261326030735

Source: CMS NPPES, primary taxonomy 174400000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 35 of 51 per resident

  1. Wyoming9
  2. Nebraska9
  3. Virginia9
  4. Illinois9
  5. Idaho9
  6. Vermont9
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 174400000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

19.1% of these records appear in a Medicare file, against 17.0% 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. Illinois19.1%
  2. United States17.0%

Specialist records in Illinois, measured

  • In a Medicare file220 of 1,154 · 19.1% here, 17.0% nationally
  • In the CMS Doctors and Clinicians file127 · 11.0% here, 11.1% nationally
  • Not updated in five years or more968 · 83.9% here, 77.3% nationally
  • Median graduation year1988 · the 127 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 174400000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,154 NPPES records list specialist (174400000X) as their primary taxonomy with a practice address in Illinois: 9 per 100,000 residents against 18 nationally (50 states and D.C.). Chicago has 231 of them (20%).

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. Colorado1,105
  2. Massachusetts1,096
  3. Oregon1,085
  4. New Hampshire1,010

States with a similar rate per 100,000

  1. Virginia9.2
  2. Nebraska9.3
  3. Idaho9.0
  4. Wyoming9.4

The largest states

  1. New York22,636
  2. California5,749
  3. Florida2,685
  4. Washington2,609
  5. Pennsylvania2,031

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.