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 51 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. Zoeeh MarreroBehavior Technician1033817465
  2. John Marsala, DDSGeneral Practice Dentistry1497062749
  3. Desiree Marsden, BCBABehavior Analyst1609490937
  4. Astrid Marshall, MDObstetrics & Gynecology Physician1457884108
  5. Alexandra MartinBehavior Technician1528777497
  6. Angela Martin, LCPCProfessional Counselor1932502853
  7. Janice MartinPharmacist1679920540
  8. Jill Martin, RPHPharmacist1124305024
  9. John Martin, PH.D.Psychologist1417921271
  10. Joseph Martin, MDHospitalist Physician1912974262
  11. Lisa Martin, MD MPHPediatrics Physician1245204122
  12. Paula Martin, M.S., CCC-SLPSpeech-Language Pathologist1255696050
  13. Sarah Martin, LPCProfessional Counselor1629650460
  14. Suzanne Martin, DTDevelopmental Therapist1023309242
  15. Ana MartinezBehavior Technician1417629239
  16. Bridget MartinezMental Health Counselor1447718259
  17. Harriett MartinezStudent in an Organized Health Care Education/Training Program1710468715
  18. Jacklyn Martinez, LPCProfessional Counselor1083442560
  19. Kevin MartinezFamily Medicine Physician1144752403
  20. Sara Martinez, M.S. BCBABehavior Analyst1194204057
  21. Haydee Martinez-Rosales, LPCCounselor1386521722
  22. Rami Martini, DOHospitalist Physician1972997948
  23. Aditi Martyniouk, DMDGeneral Practice Dentistry1437635711
  24. Rachit Marwaha, M.DInternal Medicine Physician1285168526
  25. Rakesh Marwaha, M.D.Specialist1164539094
  26. Sarah Maseth, PHARM.D.Pharmacist1144302365
  27. Alan Masline, LPCMental Health Counselor1104535574
  28. Anthony Mason, LCSWClinical Social Worker1528647427
  29. Lauren Mason, LSW, CADCSocial Worker1356910996
  30. Moira Massicotte, PTPhysical Therapist1225232267
  31. Jeffrey MasterBehavior Technician1831965250
  32. Isaac Masters, DCRehabilitation Chiropractor1699467308
  33. Kevin Masterson, M.D.Psychiatry Physician1962881318
  34. Lorey MaszkaCounselor1124255500
  35. Lidia Matamala GonzalezBehavior Technician1790569309
  36. Arieahn Matamonasa Bennett, PH.D.Clinical Psychologist1982981759
  37. Ashley Matejcak, MS, CCC-SLPSpeech-Language Pathologist1801299821
  38. Nicholas Mathenia, D.O.Neurology Physician1720377328
  39. Asha Mathew, APRNFamily Nurse Practitioner1497697791
  40. Binitha Mathew, FNPFamily Nurse Practitioner1194996835
  41. Michelle MathewOccupational Therapist1912641192
  42. Tobby Mathew, M.D.Internal Medicine Physician1962701342
  43. Linda Mathews, LCPC, ATR-BCProfessional Counselor1912097213
  44. Sunil Mathews, M.D.Emergency Medicine Physician1821147125
  45. James Matter, PSY.D.Clinical Psychologist1427127034
  46. Erika MatteucciSpeech-Language Pathologist1982107553
  47. Nikitha MatteyMental Health Counselor1275481897
  48. Heidi Matthews, MS, ATCAthletic Trainer1497724199
  49. Danielle Maturo, OTR/LOccupational Therapist1780118927
  50. Elyse MaturoOccupational Therapist1629545546

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.