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 85 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. Maria TrentadueStudent in an Organized Health Care Education/Training Program1962983577
  2. Vanessa Treps, NPNurse Practitioner1043440316
  3. Michael Treptow, LCSWClinical Social Worker1760577217
  4. Gregory Trevino, MDInternal Medicine Physician1023078631
  5. Peter Trichardt, D.C.Chiropractor1073730842
  6. Kaelinh TrinhPediatric Nurse Practitioner1407629223
  7. Theodore Troe, MDAnatomic Pathology & Clinical Pathology Physician1467530493
  8. Elizabeth Troia, RPHPharmacist1720368459
  9. Andrea Trombetta, PAPhysician Assistant1861021057
  10. Maddie TrostBehavior Technician1396361697
  11. Mary Trovato, MA, NCC, LPCMental Health Counselor1093474561
  12. Alexis TrujilloMental Health Counselor1356228639
  13. Andrew Tselepis, RPHPharmacist1861516346
  14. Pei-Yuan Tsou, MDHospitalist Physician1609293695
  15. Justin Tubbs, PTAPhysical Therapy Assistant1043954639
  16. Alicia TucekPhysician Assistant1306608898
  17. Katherine Tucker, PTPhysical Therapist1225269814
  18. Anna Tulley, MA-CF SLPSpeech-Language Pathologist1265160030
  19. George Tune, DCChiropractor1649949173
  20. Jason Tung, O.D.Optometrist1578727046
  21. Rachael TupperBehavior Technician1356940100
  22. Maria Turas, COTA/LOccupational Therapy Assistant1619492659
  23. Stefan Turcic, D.D.SGeneral Practice Dentistry1821130501
  24. Kristin Turnbull, NPFamily Nurse Practitioner1851727283
  25. Crystal TurnerBehavior Technician1194491241
  26. Kayla Turner, LPCProfessional Counselor1245995331
  27. Kristin TurnerFamily Nurse Practitioner1992096838
  28. Mark Turner, D.C.Chiropractor1629002035
  29. Maryellen TurnerContractor1396098570
  30. Stacey TurnerRegistered Nurse1821449760
  31. Stacy TurnerCounselor1962226373
  32. Brittany Turriff, LPCProfessional Counselor1124497045
  33. Piotr Tuszynski, PTPhysical Therapist1992854228
  34. Jonathan Twu, M.D.Orthopaedic Surgery Physician1629417290
  35. Kiran TyagiPhysical Therapist1205388451
  36. Anna TylkaBehavior Technician1992573364
  37. Timothy Tyrrell, MDInternal Medicine Physician1578551719
  38. Stephanie TysonDevelopmental Therapist1073297958
  39. Gary Tzeng, M.D.Anesthesiology Physician1609823715
  40. Richard Ueberfluss, PTOrthopedic Physical Therapist1306075577
  41. Fatema Ukani, PAPhysician Assistant1831582055
  42. Lindsay Ulaszek, OTR/LOccupational Therapist1336530369
  43. Zachary Ullman, DPTPhysical Therapist1346862430
  44. Judith Umunna, OTR/LOccupational Therapist1568781151
  45. Lindsey Underway, ECSEDevelopmental Therapist1285354860
  46. Samir Undevia, MDHematology & Oncology Physician1740228857
  47. Nicolle UribeMental Health Counselor1649027004
  48. Laura Uselding, MDPediatrics Physician1669651204
  49. Aaradhana Vadakara, PT,DPTPhysical Therapist1104432202
  50. Ankur Vaghani, M.D.Diagnostic Radiology Physician1518117514

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.