NPPES file of Aug 9, 2026

Doctors and health care providers in Naperville, IL

4,634 individual NPPES records list a practice address in Naperville, 3rd of 541 Illinois cities. The largest group is professional counselor: 329, 7% of the city's records, against 4% across Illinois. Page 37 of 93.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Naperville

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Naperville in Illinois

  • Rank in Illinois3rd of 541 cities by records
  • Share of the state1.9% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups19.4% of all records
  • Professional Counselor rank2nd of the 10 Illinois cities with the most

Compared with Illinois as a whole, Naperville has 2.1× the state's share of behavior analyst records and 0.54× its share of internal medicine physician records.

Providers in Naperville, alphabetically

  1. Jennifer JassoClinical Social Worker1073370995
  2. Olivia Jaudes, LPMT, MT-BCMusic Therapist1518763515
  3. Genesabel JavierOccupational Therapy Assistant1700548658
  4. John JaworskiOrthopedic Physical Therapist1275495160
  5. Seema Jeelani, D.O.Emergency Medicine Physician1013207331
  6. Tierney JeffersPhysician Assistant1508474370
  7. Kyshema Jefferson, PHD, MACounseling Psychologist1376428045
  8. Angela Jeffries, MSN CRNPPediatric Nurse Practitioner1013114511
  9. Maya JelenBehavior Technician1881411072
  10. Sara Jelinek, MS, BCBAContractor1336661842
  11. Judy JelmSpeech-Language Pathologist1659534972
  12. Valerie Jencks, M.S.Marriage & Family Therapist1003908187
  13. Brazil JenkinsBehavior Technician1326867268
  14. Julie Jensen, MDObstetrics & Gynecology Physician1326147240
  15. Kelly Jensen, PSY.D.Clinical Psychologist1720909666
  16. Christopher Jeziorkowski, M.D.Emergency Medicine Physician1912347402
  17. Caitlyn JezowitClinical Psychologist1952080897
  18. Danial Jilani, MD, MPHVascular & Interventional Radiology Physician1902224652
  19. Camila JimenezBehavior Technician1013881358
  20. John Jimenez, DDSGeneral Practice Dentistry1457419129
  21. Om Jindal, R.PHPharmacotherapy Pharmacist1225315542
  22. Ning Jing, M.A., CCC-AAudiologist1386624724
  23. Sandi Jiongco, APN-CNSClinical Nurse Specialist1225428741
  24. Andre Joachim, LPC, NCCMental Health Counselor1790320067
  25. Jennifer JohantgenBehavior Analyst1477034833
  26. Robert JohnGeneral Practice Dentistry1245329291
  27. Megan JohnnicBehavior Technician1831690213
  28. Melanie JohnsenClinical Social Worker1023390697
  29. Amy JohnsonDevelopmental Therapist1023980158
  30. Andrew Johnson, M.D.Dermatology Physician1619310232
  31. Barbara Johnson, PTPediatric Physical Therapist1215242797
  32. Clarque JohnsonProfessional Counselor1093329922
  33. Courtney Johnson, FNPNurse Practitioner1255225108
  34. Dennis Johnson, D.D.S.General Practice Dentistry1063553659
  35. Elise Johnson, BCBABehavior Analyst1407498926
  36. Gabrielle JohnsonBehavior Technician1033920731
  37. Ingrid JohnsonDevelopmental Therapist1093208332
  38. Jenna JohnsonBehavior Analyst1891058293
  39. Kaitlan JohnsonProfessional Counselor1447015706
  40. Karin Johnson, PSYDClinical Psychologist1699837310
  41. Kaytlyn JohnsonProfessional Counselor1699549865
  42. Kristie Johnson, LCPC CADC CADPProfessional Counselor1184879942
  43. Laura Johnson, M.A. CCCSpeech-Language Pathologist1194896225
  44. Mekell Johnson, MOTOccupational Therapist1982376489
  45. Tracee JohnsonProfessional Counselor1720926165
  46. Deborah Johnson Heim, PSY DClinical Psychologist1083793632
  47. Paula Johnson Strasky, PT, MOMTPhysical Therapist1811054091
  48. Deann Johnston, LCSWClinical Social Worker1639358922
  49. Mary Johnston, RNRegistered Nurse First Assistant1659595494
  50. Aniyah JonesBehavior Technician1285118455

The largest Illinois cities

  1. Chicago63,379
  2. Springfield4,997
  3. Peoria4,621
  4. Evanston4,013
  5. Rockford3,893

All of Illinois →

How to read this directory

Naperville, Illinois appears in the CMS National Plan and Provider Enumeration System with 4,634 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 Naperville - 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 Naperville 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 Naperville is weighted toward Professional Counselor (329 clinicians, followed by Clinical Social Worker with 307 and Physical Therapist with 263). 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, Naperville reports roughly 36.9 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.

Of Illinois's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Naperville practice address, a coverage gap Naperville patients typically fill by traveling to a larger nearby hub.

For Naperville 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 Naperville, IL?

There are 4,634 registered healthcare providers in Naperville, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Naperville?

The most common specialties in Naperville are Professional Counselor, Clinical Social Worker, Physical Therapist, Behavior Technician, Speech-Language Pathologist. Professional Counselor has the most providers with 329.

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.