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 209 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. Jamie Clabby, PA-CPhysician Assistant1346616885
  2. Whitney Clack, PA-CPhysician Assistant1326546185
  3. Shane ClaffeyStudent in an Organized Health Care Education/Training Program1881540227
  4. Yvonne Claflin, M.D.Anesthesiology Physician1043531353
  5. Aisha ClairStudent in an Organized Health Care Education/Training Program1477430213
  6. Elyse Clair, CNPNurse Practitioner1790719920
  7. Sara Clairmont, LCSWClinical Social Worker1346591369
  8. Erica Claman, PH.D.Clinical Psychologist1346506334
  9. Emily Clamp, MDAnesthesiology Physician1306593728
  10. Catherine ClancySpeech-Language Pathologist1225761224
  11. David Clancy, LLMSW, MPHClinical Social Worker1982424271
  12. Gwen Clancy, LCPCMental Health Counselor1215599568
  13. James Clancy, MDFamily Medicine Physician1538162102
  14. Lauren Clancy, L.C.S.WClinical Social Worker1033389119
  15. Sean Clancy, BOTOccupational Therapist1134830599
  16. David Clanton, CRNACertified Registered Nurse Anesthetist1225030711
  17. Sierra ClantonCounselor1275456774
  18. Philip Clapham, MDInfectious Disease Physician1861806580
  19. Lynne Clapman, ANPFamily Nurse Practitioner1093123234
  20. Karen Clapp, APNFamily Nurse Practitioner1821034752
  21. William Clapp, MDPulmonary Disease Physician1174721229
  22. Steven Clar, MDPhysical Medicine & Rehabilitation Physician1194747667
  23. Casey Clardy, PHD, MDIVClinical Psychologist1689907834
  24. Christopher ClardyPediatric Nephrology Physician1346390382
  25. Marisa Clare, PTPhysical Therapist1801524046
  26. Richard Clarey, M.D.Psychiatry Physician1043599400
  27. Leticia Claridad, MDObstetrics & Gynecology Physician1043280621
  28. Aaron Clark, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1245791797
  29. Aimee Clark, MS, APRN, CNMAdvanced Practice Midwife1184993552
  30. Angelica Clark, DCChiropractor1417734385
  31. Anthony Clark, M.D.Internal Medicine Physician1225062615
  32. April Clark, PT, DPTPhysical Therapist1316061922
  33. Asia Clark, COTAOccupational Therapist1134891435
  34. Bianca Clark, LCSWClinical Social Worker1700444320
  35. Carol Clark, CADCAddiction (Substance Use Disorder) Counselor1265938302
  36. Catherine ClarkOccupational Therapist1457755878
  37. Catherine Clark, BA, MA, LPC, NCCMental Health Counselor1003703950
  38. Christine Clark, PHARMDPharmacotherapy Pharmacist1811002983
  39. David Clark, DDSDentist1437321536
  40. David Clark, PA-CFamily Medicine Physician1487089645
  41. Elijah Clark, PA-CPhysician Assistant1962128595
  42. Emma Clark, MSW, PMH-CSocial Worker1114850138
  43. Erin ClarkEmergency Medicine Physician1487940888
  44. Ingrid Clark, MS, RD, LDNRegistered Dietitian1356144489
  45. Janet Clark, P.T.Physical Therapist1588785869
  46. Jason ClarkMental Health Counselor1033727425
  47. Jeffrey Clark, MDCardiovascular Disease Physician1457907321
  48. Jennifer ClarkNurse Practitioner1932376043
  49. Jill Clark, D.C.Chiropractor1407164353
  50. Joseph Clark, MS, RD, CSSDSports Dietetics Nutrition Registered Dietitian1376460907

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.