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 653 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. Linda Lewis, PH.DClinical Psychologist1255452405
  2. Luis Lewis, ODOptometrist1437142973
  3. Marisa LewisMental Health Counselor1740797778
  4. Mary Lewis, MDPediatrics Physician1568492940
  5. Mary Lewis, APNNurse Practitioner1528568094
  6. Mathabeng Lewis, MS, RDRegistered Dietitian1568062404
  7. McKenna LewisRegistered Dietitian1275420903
  8. Melanie Lewis, RD, LDNRegistered Dietitian1356018287
  9. Miquel Lewis, PSY.D.Professional Counselor1508352873
  10. Morgan LewisHealth & Wellness Coach1467318543
  11. Ryan Lewis, PA-CPhysician Assistant1194188383
  12. Sarah Lewis, LCSWClinical Social Worker1497941637
  13. Shalanda LewisClinical Laboratory Director (Non-physician)1134888480
  14. Tamara Lewis, LCSWClinical Social Worker1164883864
  15. Tamiah LewisStudent in an Organized Health Care Education/Training Program1467200055
  16. Tiffany LewisProfessional Counselor1598280679
  17. Tiffany Lewis, M.ED.Developmental Therapist1598382822
  18. Topaz LewisSocial Worker1104416684
  19. Nisha Lewontin, PSYDClinical Psychologist1619646304
  20. David Ley, LCSWClinical Social Worker1174718936
  21. Marysa Leya, MDInterventional Cardiology Physician1790176618
  22. Cristito Leyba, M.D.Psychiatry Physician1366598096
  23. Richard Leyba, DMDGeneral Practice Dentistry1528226917
  24. Lindsey Leyden, DNP, APRNAcute Care Nurse Practitioner1710530589
  25. Madeline Leyden, RNStudent in an Organized Health Care Education/Training Program1477449742
  26. Acezr Leynes, M.D.Family Medicine Physician1689672537
  27. Kathleen Leynes, LCSWClinical Social Worker1033577507
  28. Ayala Leyser, PHDMental Health Counselor1427294487
  29. Danielle Leyva, DMDStudent in an Organized Health Care Education/Training Program1366245235
  30. Margaret Lheureux, MDObstetrics & Gynecology Physician1801152103
  31. Alice Li, MDPsychiatry Physician1013608033
  32. Anna LiStudent in an Organized Health Care Education/Training Program1316878721
  33. Anran Li, MDNeurological Surgery Physician1700534195
  34. Artemis LiProfessional Counselor1497504096
  35. Bernardo Li, M.D.General Practice Physician1083779300
  36. Caitlin Li, MDPediatric Infectious Diseases Physician1962858860
  37. Chi-Ing Li, D.D.S.General Practice Dentistry1366431371
  38. Chloe LiOphthalmology Physician1184219644
  39. David LiPharmacy Technician1093320947
  40. Dawn Li, M.D.Pediatrics Physician1548279995
  41. Dingyu Li, PHARMACISTPharmacist1073893715
  42. Edward Li, MD, PHDDermatology Physician1003443532
  43. Ellen LiStudent in an Organized Health Care Education/Training Program1366270639
  44. Grace LiStudent in an Organized Health Care Education/Training Program1851249080
  45. Heqi LiPharmacist1164204137
  46. Huihua Li, MDAnatomic Pathology & Clinical Pathology Physician1336646256
  47. Jack LiStudent in an Organized Health Care Education/Training Program1841917465
  48. James LiStudent in an Organized Health Care Education/Training Program1194607358
  49. Jaslynn LiAnesthesiology Physician1992925994
  50. Jennifer Li, MDSurgery Physician1417475591

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.