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 84 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. Kristina Thomas, LCSWSocial Worker1548721673
  2. Marina Thomas, OTR/LPediatric Occupational Therapist1740829654
  3. Nancy Thomas, MDPediatrics Physician1417972738
  4. Robert Thomas, DDSOrthodontics and Dentofacial Orthopedics Dentistry1508239807
  5. Shannon ThomasPhysical Therapist1740728575
  6. Jessica Thome, MS, RDN, LDNRegistered Dietitian1912757915
  7. Alyssa Thompson, DPTPhysical Therapist1801422183
  8. Jessica Thompson, D.C.Chiropractor1770785941
  9. Tricia Thomson, M.D.Pediatrics Physician1104087030
  10. Kevin Thornsberry, D.D.S.Dentist1649415696
  11. Jennifer ThrasherDevelopmental Therapist1043574544
  12. Karen Throntveit, RN, CSP, DTDevelopmental Therapist1417132796
  13. Jesse Throw, DCStudent in an Organized Health Care Education/Training Program1619745619
  14. Niki Thurkow, PH.D., BCBA-DBehavior Analyst1457684599
  15. Courtney TidwellAssistant Behavior Analyst1730631359
  16. Kirsten Tillman, LCSWClinical Social Worker1558559880
  17. Emily TillotsonFamily Nurse Practitioner1740830694
  18. Adam Tilson, D.C.Chiropractor1265682553
  19. Samantha TinglofRegistered Nurse1235008731
  20. Stephanie Tintner, LCSWClinical Social Worker1720666357
  21. Beth Tipton, PH.D.Clinical Psychologist1669624722
  22. Jennifer To, MA, BCBABehavior Analyst1144772732
  23. Michelle ToPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1790392223
  24. Swarupa Todatry, N.C.T.M.Massage Therapist1053551184
  25. Katie ToddSpecialist1750755807
  26. Hailey Tokarsyck, MS, LPCProfessional Counselor1174346779
  27. Matthew Toman, APNFamily Nurse Practitioner1750894952
  28. Peggy TomchekCounselor1972085199
  29. Jennifer Tomich, O.D.Optometrist1912125949
  30. Denise Tompkins, PSY.D.Clinical Child & Adolescent Psychologist1881876480
  31. Amanda TorresFamily Nurse Practitioner1750914917
  32. David Torres, L.C.S.W.Clinical Social Worker1245248731
  33. Eric Torres, PA-CPhysician Assistant1225406499
  34. Mayra TorresSocial Worker1003688649
  35. Sharon Tortal, COTAOccupational Therapy Assistant1063927168
  36. Melissa Toulios, APNFamily Nurse Practitioner1912207036
  37. Karim Tourk, M.D.Internal Medicine Physician1679569347
  38. Caitlin TovarStudent in an Organized Health Care Education/Training Program1265259766
  39. James Tovell, A.T.,C.Specialist1699744631
  40. Nicole Tracy, RD, LDNPediatric Nutrition Registered Dietitian1154448199
  41. Rachel TracyOccupational Therapist1457924243
  42. Brittany Tracz BaileyPhysical Therapy Assistant1023443207
  43. Kim Trager, D.C.Chiropractor1194794685
  44. Douglas Tran, MDInternal Medicine Physician1144270976
  45. Kyle Tran, D.C.Chiropractor1639368798
  46. Tamaryn Tran, MS, CF-SLPSpeech-Language Pathologist1518708817
  47. Leah Travers-Pucci, LCSWClinical Social Worker1326557471
  48. Heather Treat, LPClinical Psychologist1316396096
  49. Sheila Treftz, APNAcute Care Nurse Practitioner1023074051
  50. Melanie Trenkler, LCSWClinical Social Worker1790322709

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.