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 59 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. Jacqueline Neumann, CPNP-PCPediatric Nurse Practitioner1609309277
  2. Jc NeumannBehavior Technician1902446107
  3. Michael Neville, D.O.Family Medicine Physician1174800155
  4. Rae Nevling, MA, LPCProfessional Counselor1255739843
  5. Eilish Newcomb, OTD, OTR/LOccupational Therapist1538007778
  6. David Newkirk, D.D.S.General Practice Dentistry1528132008
  7. Cheryl Newman, MS,DTDevelopmental Therapist1780092122
  8. Candy Ng, PHARM D.Pharmacist1346170305
  9. Amy Nguyen, OTR/LOccupational Therapist1194974881
  10. Keith NguyenPharmacotherapy Pharmacist1447602388
  11. Quan Nguyen, D.C.Chiropractor1669790937
  12. Amy Nichols, LCPCMental Health Counselor1679087340
  13. Jaye Nichols, LCSW, MSWClinical Social Worker1578612941
  14. Jessica NicholsBehavior Technician1467253005
  15. Poshlyn Nicholson, MSWMental Health Counselor1053285478
  16. Jennifer Nicoletti, LCPCProfessional Counselor1841430287
  17. Tara NieberdingContractor1225528524
  18. Janet Nielsen, M.D.Family Medicine Physician1679773980
  19. Thomas NielsenPsychologist1558090340
  20. Coni Nielson, APN-CNPNurse Practitioner1831114933
  21. Genalin Niere-Metcalf, R.N., M.A., PSY.DClinical Psychologist1639451057
  22. Doris Nietert, M.D.Pediatrics Physician1942283759
  23. Maria NietoBehavior Technician1073099024
  24. Tara Nikodem, PA-CSurgical Physician Assistant1720322654
  25. Laura Nilles, P.T.Physical Therapist1407988454
  26. Linda Nisonoff, PH.D.Clinical Psychologist1184707549
  27. Paulina Niziol, ODOptometrist1699405209
  28. Suzanne Niznik, OTR/LOccupational Therapist1124744974
  29. Joan NoceraSpeech-Language Assistant1245696590
  30. Katherine Noel, DNPPediatric Nurse Practitioner1356176044
  31. Jocelyn Nolan, LCSWClinical Social Worker1053026492
  32. Lilah NolanStudent in an Organized Health Care Education/Training Program1538640735
  33. Samantha NolanProfessional Counselor1295311397
  34. Sean Nolen, CADC, MA,Mental Health Counselor1790585412
  35. Danielle NolinAthletic Trainer1225408438
  36. Margaret Nolte, APN-CNPNurse Practitioner1255821930
  37. Patrick Nolten, PH.D.Cognitive & Behavioral Psychologist1649302167
  38. Colleen Noonan, PACFamily Medicine Physician1366439234
  39. Caitlin NorbergBehavior Technician1750040390
  40. Samuel Norgaard, DCChiropractor1881358562
  41. Jessica Norman, PHD LCPCProfessional Counselor1710242284
  42. Dawn Norris, M.A. CCC-SLPSpeech-Language Pathologist1477693083
  43. Mallory NortonNurse Practitioner1356945091
  44. Rebecca Norton-Jones, LCPC, LMFTProfessional Counselor1437128766
  45. Colleen NorwellClinical Social Worker1114288578
  46. Tamara Nosa, APRNFamily Nurse Practitioner1598423006
  47. Maiada NosseirPharmacist1568305910
  48. Ahmad Nourallah, MDSurgery Physician1164965992
  49. Cheryl Novak, DCChiropractor1790505394
  50. Tim Novak, LCPCMental Health Counselor1235352493

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.