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 88 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. Claudia Walter, PA-CPhysician Assistant1255250700
  2. Emily Walters, BCBABehavior Analyst1407480262
  3. Ramona WaltonSchool Counselor1003556606
  4. Allison Walz, O.D.Optometrist1659503159
  5. Alan Wang, MDGastroenterology Physician1831376359
  6. Emmy Wang, DCChiropractor1922246974
  7. Hannah Wang, PA-CPhysician Assistant1235073107
  8. Joe Wang, D.C.Chiropractor1104057728
  9. Ping Wang, PTAPhysical Medicine & Rehabilitation Physician1104487289
  10. Tom Wang, MDAnesthesiology Physician1922498641
  11. Yibin WangRegistered Dietitian1003275249
  12. Yilin Wang, M.S., OTROccupational Therapist1376941062
  13. Yuxin WangPharmacist1780965285
  14. Tracy Wannemacher, MS CCC SLPLSpeech-Language Pathologist1417022138
  15. Malisa WardRespiratory/Developmental/Rehabilitative Specialist/Technologist1780407643
  16. Najibullah Wardak, PHARMDPharmacist1932869336
  17. Austin WardenChiropractor1770041022
  18. Nicole Ware, APNFamily Nurse Practitioner1548771595
  19. Julie WarehamBehavior Analyst1194382614
  20. Kristine Warnes, APN-CNPNurse Practitioner1871543264
  21. Cara Warning, PT, DPTPhysical Therapist1982202164
  22. Dorothy Warzocha, MDFamily Medicine Physician1598716722
  23. Chad Wasson, D.C.Rehabilitation Chiropractor1053469692
  24. Kristin Waterfield, M.A., L.C.P.C.Professional Counselor1134494594
  25. Jessica Waters, PA-CPhysician Assistant1043688690
  26. Kayla Waters, COTAOccupational Therapist1366228959
  27. Jennifer Watgen, MA, NCC, LCPCProfessional Counselor1871878736
  28. Kristin Watkins, APN-CNPNurse Practitioner1093667032
  29. Ashley Watts, DPTPhysical Therapist1316225410
  30. Joanne Watts, APNFamily Nurse Practitioner1396992962
  31. Olga Watts-Smith, LCPCMental Health Counselor1124239884
  32. Kristlin WeathersbyFamily Nurse Practitioner1912646159
  33. Janelle Webb, PT,DPTPhysical Therapist1457123366
  34. Nikendra WebberBehavior Technician1336960871
  35. Amy Weber, MPTPhysical Medicine & Rehabilitation Physician1942216833
  36. Elyse Weber, M.S.Genetic Counselor (M.S.)1366412587
  37. Gary Weber, D.D.SGeneral Practice Dentistry1730311820
  38. Kyle Weber, PH.D.Clinical Psychologist1770890857
  39. Susan Weber, APNAcute Care Nurse Practitioner1942368782
  40. Toby Weber, MSW, LCSWClinical Social Worker1548554835
  41. James Weeks, DDSGeneral Practice Dentistry1326293051
  42. Peter Weeks, MDObstetrics & Gynecology Physician1174584130
  43. Robin Weeks, LCSWClinical Social Worker1679054647
  44. Carrie Wegener, MASTERS OF OCCUPATIOOccupational Therapist1588727887
  45. Emily Wegenke, LLMSWClinical Social Worker1699482166
  46. Margaret Wehrenberg, PSY.D.Psychologist1760561583
  47. Colleen WehrliSpeech-Language Pathologist1386074615
  48. Cortney Weigand, D.C.Chiropractor1750651808
  49. Anne Weigel, N.P.Family Nurse Practitioner1346249620
  50. Mitchel Weiler, OTR/LOccupational Therapist1497403448

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.