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 18 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. Makayla DavisSpeech-Language Pathologist1477234540
  2. Sandra Davis, APN-CNPNurse Practitioner1982762720
  3. Taryrsha Davis, APNNurse Practitioner1821552761
  4. Zev Davis, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1356307367
  5. Isabella Davison-ArancioBehavior Technician1285362004
  6. Amber Dawson, O.D.Optometrist1023262789
  7. Sonia Dayal-Boyce, MS CCC-SLP/LSpeech-Language Pathologist1841842408
  8. Theresa De La FuenteMarriage & Family Therapist1023365350
  9. Matthew De La Torre, APN-CNPNurse Practitioner1043714165
  10. Mary Dea, DOInternal Medicine Physician1518951474
  11. Julia Deac, MSSpeech-Language Pathologist1679363493
  12. Jocelyn DeangBehavior Technician1891503967
  13. Arnold Deangelis, DDSGeneral Practice Dentistry1689710972
  14. Daniel Debartolo, M.D.Ophthalmology Physician1659392868
  15. Marie Debartolo, APNNurse Practitioner1689921595
  16. Danielle Deboer, DNP, FNP-CNurse Practitioner1194483172
  17. Alex DeboltStudent in an Organized Health Care Education/Training Program1760985295
  18. Keith Dedecker, DPTPhysical Therapist1578930418
  19. Katelyn Dedic, M.S.ED, PEL-SCProfessional Counselor1316763691
  20. Emily Deeney, BCBABehavior Analyst1902117211
  21. Melissa Deer Pelletier, D.O.Obstetrics & Gynecology Physician1104231620
  22. Maria Defilippis, DDSGeneral Practice Dentistry1982708053
  23. Elina Defranceschi, PA-CSurgical Physician Assistant1750789798
  24. Kendra Defrank, MA, LCPCProfessional Counselor1073021473
  25. Melissa Degeeter, PHARMDPharmacist1619176567
  26. Danielle Degrado, APN-CNPNurse Practitioner1942758776
  27. John Paul Dehler, PA-CPhysician Assistant1982705166
  28. Lynnzee Dehn, MS, CCC-SLPSpeech-Language Pathologist1710504964
  29. Adriana Del OlmoMental Health Counselor1184397028
  30. Michelle Del RealBehavior Analyst1043099401
  31. Danyelle Hannah Del RosarioSpeech-Language Pathologist1144900168
  32. Grace Elaine Del RosarioPhysical Therapist1720704265
  33. Laura Del ToroInterpreter1689939217
  34. Michelle Dela Pena, APRN, FNPFamily Nurse Practitioner1811518178
  35. Amanda DelaguilaBehavior Analyst1770067530
  36. Tiffany Delane, PA-CMedical Physician Assistant1255311502
  37. Joannne Delany, APN-CNS BCAdult Health Clinical Nurse Specialist1942668355
  38. Kimberly Delapp, MDObstetrics & Gynecology Physician1679990121
  39. Danielle DelfiniBehavior Analyst1225645930
  40. David DelgadoBehavior Analyst1720797764
  41. Isabel DelgadoBehavior Technician1558294652
  42. Ketjona Deli, PA-CPhysician Assistant1750971685
  43. Maeve Deloughery, OTRLOccupational Therapist1609944776
  44. Debora Delre, APN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1780048058
  45. Zachary DemboCounselor1396272423
  46. Ashley Dempsey, PHARMDPharmacist1053853705
  47. Maryssa Denardo, LSW, CADCMental Health Counselor1427639004
  48. Kara Dendrinos, OTRPediatric Occupational Therapist1386840155
  49. Maureen DeneenPediatric Occupational Therapist1073068540
  50. David Dennis, LCSWClinical Social Worker1255196911

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.