NPPES file of Aug 9, 2026

Doctors and health care providers in Chicago, IL

63,379 individual NPPES records list a practice address in Chicago, 1st of 541 Illinois cities. The largest group is clinical social worker: 4,368, 7% of the city's records, against 6% across Illinois. Page 226 of 1,268.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Chicago

  1. Clinical Social Worker4,368
  2. Students in training3,509
  3. Internal Medicine Physician2,867
  4. Physical Therapist2,639
  5. Professional Counselor2,405
  6. Mental Health Counselor2,130
  7. Pharmacist1,906
  8. Speech-Language Pathologist1,753

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Chicago in Illinois

  • Rank in Illinois1st of 541 cities by records
  • Share of the state26.4% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups17% of all records
  • Clinical Social Worker rank1st of the 10 Illinois cities with the most

Compared with Illinois as a whole, Chicago has 2× the state's share of student in an organized health care education/training program records and 0.54× its share of behavior technician records.

Providers in Chicago, alphabetically

  1. Mary Cook, LCSWClinical Social Worker1356016679
  2. Matasha CookDevelopmental Therapist1013750876
  3. Meloney CookClinical Social Worker1669801239
  4. Nicole Cook, OTD,OTR/LOccupational Therapist1669112496
  5. Pasquail Cook, MSWClinical Social Worker1710564190
  6. Rachel Cook, LAC.Acupuncturist1790997831
  7. Ryan CookPharmacist1447531900
  8. Ryan Cook, DOFamily Medicine Physician1962068965
  9. Sarah Cook, PA-CPhysician Assistant1417788092
  10. Sue Cook, L.AC., LCSWClinical Social Worker1942604764
  11. Tanika Cook, LPCProfessional Counselor1063900926
  12. Candace Cook-BeySocial Worker1043051105
  13. Yashika Cook-Hill, NPFamily Nurse Practitioner1104457555
  14. Alexander Cooke, MDRadiation Oncology Physician1639973746
  15. Alexandra Cooke, MDObstetrics & Gynecology Physician1437710571
  16. Catherine Cooke, LCPCProfessional Counselor1174214472
  17. Gerald Cooke, MDInternal Medicine Physician1386768588
  18. Ian CookeStudent in an Organized Health Care Education/Training Program1336531896
  19. Philip Cooke, PHDCounseling Psychologist1902437510
  20. Adelaide Cooke Sperling, DPTPhysical Therapist1366125494
  21. Chelsea CooksTechnician1508570425
  22. Minnie CooksDriver1144928342
  23. Emily Cooksey, CADC, LCSWClinical Social Worker1912782962
  24. Jo Nell Cool, DC, ND, CACCPChiropractor1497221733
  25. Diane CooleyPharmacist1376015768
  26. Michelle CooleyInternal Medicine Physician1649021197
  27. Gabriel CoombsCounselor1982524153
  28. Suzanne CoomerSpeech-Language Pathologist1831820471
  29. Mary Coomes, MDSurgery Physician1396485769
  30. Caroline Coon, PHYSICIAN ASSISTANTPhysician Assistant1225495898
  31. John Coon, MDAnatomic Pathology & Clinical Pathology Physician1922083237
  32. Rowan CoonOptometrist1306762919
  33. Elizabeth Cooney, MDAnesthesiology Physician1558891507
  34. Fawn Cooney, LPCProfessional Counselor1659947976
  35. Maureen Cooney, M.S., CCC-SLPSpeech-Language Pathologist1992903934
  36. Sean Cooney, D.C.Chiropractor1104173731
  37. Lauren Coons, PA-CPhysician Assistant1386469658
  38. Aaron Cooper, PH.D.Psychologist1750518015
  39. Aben Cooper, P.T.Physical Therapist1043485642
  40. Anna CooperClinical Social Worker1770253841
  41. Cassandra Cooper, LCPCProfessional Counselor1407479637
  42. Charity Cooper, CNM, APNAdvanced Practice Midwife1235212473
  43. Christa Cooper, PA-CPhysician Assistant1831440254
  44. Daria Cooper, LCSWClinical Social Worker1982184958
  45. Debra Cooper, LCPCAddiction (Substance Use Disorder) Counselor1659403558
  46. Jacob CooperBehavior Technician1043016488
  47. Jamie CooperInternal Medicine Physician1275115933
  48. Jennifer Cooper, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1447143524
  49. Joseph Cooper, M.D.Psychiatry Physician1043358781
  50. Judith Cooper, PSY.D.Clinical Psychologist1437228343

The largest Illinois cities

  1. Springfield4,997
  2. Naperville4,634
  3. Peoria4,621
  4. Evanston4,013
  5. Rockford3,893

All of Illinois →

How to read this directory

Chicago, Illinois appears in the CMS National Plan and Provider Enumeration System with 63,379 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Chicago - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Chicago practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Chicago is weighted toward Clinical Social Worker (4,368 clinicians, followed by Student in an Organized Health Care Education/Training Program with 3,509 and Internal Medicine Physician with 2,867). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Illinois's population, Chicago reports roughly 505 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Chicago patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Chicago, IL?

There are 63,379 registered healthcare providers in Chicago, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Chicago?

The most common specialties in Chicago are Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Physical Therapist, Professional Counselor. Clinical Social Worker has the most providers with 4,368.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.