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 645 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. Jenny Lemus, LCPCProfessional Counselor1003392077
  2. Jenny LemusStudent in an Organized Health Care Education/Training Program1710826326
  3. Stephanie Lemus, PA-CMedical Physician Assistant1831456755
  4. Diane Lenard, PTPediatric Physical Therapist1447376728
  5. Agnieszka LenartSpeech-Language Assistant1073968012
  6. Adam Lencioni, LPCProfessional Counselor1104299049
  7. Micha Leneave, LCSWClinical Social Worker1861162315
  8. Dorothy Leneir, LCSWClinical Social Worker1487759627
  9. Robert Lenet, M.DInternal Medicine Physician1205978186
  10. Marisa Lenga, MDInternal Medicine Physician1427817584
  11. Ernst Lengyel, MDGynecologic Oncology Physician1447296306
  12. Ulrike Lengyel, MDFamily Medicine Physician1790983831
  13. Richard Lenhardt, M.D.Pulmonary Disease Physician1831141936
  14. Laura Lenhart, PTPhysical Therapist1285982983
  15. Erin Lenihan, PT, DPTPhysical Therapist1043838923
  16. Jacob LenihanPodiatrist1932737707
  17. Eden Lenk, LCPCMental Health Counselor1265972988
  18. Ann Lenling, M.S. CCC-SLPSpeech-Language Pathologist1598899056
  19. Nia LennanSocial Worker1518756329
  20. Elise Lennard, M.A.Clinical Social Worker1699846857
  21. Johanna Lenneberg, LCSWClinical Social Worker1396949897
  22. Charles LennesPediatric Nurse Practitioner1346109410
  23. David Lennie, O.T.Occupational Therapist1770942948
  24. Vanessa Lennie, MS, RDN, LDNRegistered Dietitian1659878049
  25. Elizabeth Lennihan, M.A.Clinical Social Worker1700940095
  26. Ann LennonBehavior Analyst1881936979
  27. Julie Lennon, PTPhysical Therapist1497843841
  28. Virginia Lennon, PA-CPhysician Assistant1568136141
  29. Alana Lennon-RiosSpeech-Language Pathologist1598565814
  30. Adria Leno, M.S., CCC-SLPSpeech-Language Pathologist1245568906
  31. Laafrica LenoirAddiction (Substance Use Disorder) Counselor1538639802
  32. Angela Lenon, M.D.Hospitalist Physician1891051439
  33. A Lenox, LCSWClinical Social Worker1861989477
  34. Amber Lenstrom, PA-CPhysician Assistant1881994432
  35. Tiffany LentellDoula1861116105
  36. Jessica Lenth, LCSWClinical Social Worker1437381050
  37. James Lentini, LCSWClinical Social Worker1952080988
  38. Nicole Lentini, MDPsychiatry Physician1679948822
  39. Natasha Lentner, ALMFTMarriage & Family Therapist1720604648
  40. Corinne Lents, PA-CPhysician Assistant1871627828
  41. Mary Lentz, CNMAdvanced Practice Midwife1760832034
  42. Riley Lentz, LSWSocial Worker1285456913
  43. Amanda Lenvin, LCPCCounselor1679856686
  44. Andrew Lenz, L.ACAcupuncturist1447881701
  45. Daniel LenzPhysical Therapist1619860368
  46. Emily Lenz, NPNurse Practitioner1699085621
  47. Peter Lenz, ED.S., NCSPSchool Psychologist1790447522
  48. Shari Lenz, MOTR/LPediatric Occupational Therapist1952333585
  49. Alicia Lenzen, M.D.Pediatric Hematology & Oncology Physician1538424056
  50. Laura Lenzi, PHARMDPharmacist1558719310

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.