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 189 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. Benjarat Changyaleket, M.D.Anesthesiology Physician1477711448
  2. Erin Channell, LPCMental Health Counselor1194265850
  3. Robert Channon, M.D.Psychiatry Physician1568445146
  4. Soelot Chantachote, M.D.Family Medicine Physician1659632206
  5. Sucha ChantaprasopsukOccupational Therapist1376006981
  6. Alyssa Chao, MDStudent in an Organized Health Care Education/Training Program1851060784
  7. Calvin ChaoVascular Surgery Physician1124588264
  8. Ahmad Chaouki, M.D., PHDPediatric Cardiology Physician1063678852
  9. Ajay Chapa, MDDiagnostic Radiology Physician1689896441
  10. Alexandra Chapa, PA-CPhysician Assistant1518771906
  11. Bianca Chapa, OTD, OTR/LOccupational Therapist1245116771
  12. Usha Chapala Gopal, PTPhysical Therapist1104050376
  13. Pravalya ChaparalaBody Imaging Physician1467271700
  14. Madeline Chaparro, MSW, LSWSocial Worker1669223889
  15. Maria Chapekis, M.S. CCC-SLPSpeech-Language Pathologist1083036719
  16. Bernard Chapin, SCHOOL PSYCHOLOGISTPsychologist1154964146
  17. Cate ChapinPhysician Assistant1871437574
  18. Catherine Chapin, MDPediatric Transplant Hepatology Physician1942595129
  19. Jordan Chaplik, LCSW, PLLCClinical Social Worker1487397410
  20. Kelly ChaplinPhysical Therapist1053758144
  21. Claire Chaplinsky, PA-CPhysician Assistant1386434751
  22. Alexa Chapman, NPFamily Nurse Practitioner1629472840
  23. Allison Chapman, APRN, CNPNurse Practitioner1184432122
  24. Arlene ChapmanNephrology Physician1982614921
  25. Brenna ChapmanBehavior Technician1770301764
  26. Christopher Chapman, M.D.Gastroenterology Physician1235378043
  27. Courtney Chapman, MA, CCC-SLPSpeech-Language Pathologist1700059391
  28. Dina Chapman, OTOccupational Therapist1033424627
  29. Johne Chapman, MDEmergency Medicine Physician1942734520
  30. Jonathan Chapman, LCSWClinical Social Worker1841172137
  31. Joseph ChapmanPediatric Gastroenterology Physician1164985164
  32. Judith Chapman, LCSWClinical Social Worker1912047416
  33. Julia Chapman, LSWClinical Social Worker1144093634
  34. Kathryn ChapmanNurse Practitioner1376949883
  35. Kathryn Chapman, LCPCProfessional Counselor1679930200
  36. Margaret Chapman, M.D.Internal Medicine Physician1164748471
  37. Mark Chapman, M.D.Psychiatry Physician1306132949
  38. Megan Chapman, AMFTMarriage & Family Therapist1881121796
  39. Nadine Chapman, PSYDClinical Psychologist1285739722
  40. Peter Chapman, LCSWClinical Social Worker1053552497
  41. Ramona Chapman, PHARM D.Pharmacist1932481553
  42. Taviyee ChapmanBehavior Technician1043178833
  43. Terrance Chapman, RBTBehavior Technician1558907733
  44. Naaja Chapman RainerBehavior Technician1972320166
  45. Patricia Chapman-Kelly, APNFamily Nurse Practitioner1083082358
  46. Geanabelle Chapp, BSN, RNRegistered Nurse1700379476
  47. Jade ChappellBehavior Analyst1720647076
  48. Jennifer ChappelleSpeech-Language Pathologist1336844257
  49. Tania ChapperProfessional Counselor1407630205
  50. Judith Chapperon, LCSWClinical Social Worker1114071909

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.