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 469 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. Margaret Herr, MDInternal Medicine Physician1619818788
  2. Lisa Herranz, RN, IBCLCLactation Consultant (Registered Nurse)1366839532
  3. Alexis HerreraBehavior Analyst1194339283
  4. Amanda Herrera, LCSWClinical Social Worker1396476552
  5. Anne HerreraPharmacist1609157908
  6. Cesar Herrera, M.D.Cardiovascular Disease Physician1972550846
  7. Daritza HerreraPhysician Assistant1184109282
  8. Eliana HerreraBehavior Technician1073318390
  9. Elisa HerreraStudent in an Organized Health Care Education/Training Program1366380818
  10. Estefany HerreraBehavior Technician1922824432
  11. Federico Herrera, M.D.Pediatrics Physician1881926913
  12. Isaac HerreraBehavior Technician1801562905
  13. Jacqueline Herrera, MSWMental Health Counselor1689320962
  14. Janell Herrera, PA-CPhysician Assistant1902424062
  15. Javier Herrera, M.D.Emergency Medicine Physician1447605092
  16. Jesus HerreraCase Manager/Care Coordinator1528521606
  17. Jocelyn Herrera, MDPsychiatry Physician1730768151
  18. Jocelyn Herrera, LPCProfessional Counselor1023935509
  19. Julissa Herrera, LPCProfessional Counselor1376437236
  20. Maria Herrera, LCSWClinical Social Worker1659189462
  21. Maricarmen Herrera, L.C.S.W.Clinical Social Worker1982005203
  22. Melissa HerreraDevelopmental Therapist1396378949
  23. Mercedes Herrera, LCSWClinical Social Worker1598304255
  24. Patricia Herrera, MDInfectious Disease Physician1558387803
  25. Ryan Herrera, PTAPhysical Therapy Assistant1598642498
  26. Stephanie Herrera, MA,LPCProfessional Counselor1235663535
  27. Stephanie Herrera, LCSWClinical Social Worker1174314819
  28. Tara Herrera, APRN, FNP-BC, MSNFamily Nurse Practitioner1457236887
  29. Veronica HerreraBehavior Technician1336974997
  30. Daniel Herrera Dent, ED.S, LCPCMental Health Counselor1902579824
  31. Ana Herrera-Gonzalez, LCSWClinical Social Worker1295268126
  32. Jesica Herrick, MDInfectious Disease Physician1417134305
  33. Whitney Herrig, PA-CPhysician Assistant1306288840
  34. Erika HerrinRegistered Nurse1093945503
  35. Kennise Herring, PH.D.Clinical Psychologist1073739694
  36. Shaina Herring, APN, CNMMidwife1992284889
  37. Taylor Herring, PA-CPhysician Assistant1942960034
  38. Gioia Herring-Williams, M.D.Physical Medicine & Rehabilitation Physician1134111370
  39. Holly Herrington, MS, RD, LDNRegistered Dietitian1811130024
  40. David Herrmann, DDSGeneral Practice Dentistry1336365188
  41. Lana Herrmann, MDPediatrics Physician1598550683
  42. Lester Herro, ODOptometrist1851420590
  43. Abigail HerroldClinical Psychologist1083265524
  44. Joseph Herrold, MD, MPHTrauma Surgery Physician1013311067
  45. Burnetta Herron, M.D.Surgery Physician1841211513
  46. Denise HerronCounselor1154810547
  47. Devere Herron, D.D.S.Dentist1083826507
  48. James Herron, MDInternal Medicine Physician1174555361
  49. Jesse Herron, APRN, CRNP, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1841706371
  50. Mary Herron, LCSWClinical Social Worker1972830172

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.