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 57 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. William Mourad, M.D.Gastroenterology Physician1760698161
  2. Spencer MoustisProfessional Counselor1669265567
  3. Caryn MoySpeech-Language Pathologist1538784921
  4. Robert Moylan, LCPCMental Health Counselor1164475984
  5. Anna Moynihan, DMDGeneral Practice Dentistry1891257796
  6. Harold Mozwecz, MDGastroenterology Physician1356318349
  7. Joan Mrozek, R.N.-BC, L.C.S.W.Clinical Social Worker1245694421
  8. Bridget Mrozla, NPNurse Practitioner1851663330
  9. Nataliya MruhPharmacist1366114316
  10. Estelle Mruz, RNFARegistered Nurse First Assistant1972648335
  11. Jill MudgeClinical Social Worker1477387462
  12. Eric Mueller, LCSW,CADCClinical Social Worker1619119765
  13. Jessica MuellerCounselor1922527282
  14. Jordan MuellerCounselor1386533347
  15. Linda Mueller, MDEmergency Medicine Physician1992775803
  16. Khaalid MuhammadBehavior Analyst1992543060
  17. Fouzia Muhammedkarim, MDFamily Medicine Physician1508071309
  18. Celine MuiBehavior Technician1447023411
  19. Tarannum Mujtaba, M.DDiagnostic Radiology Physician1891249793
  20. Paul Mullen, PSY. D.Psychologist1588743231
  21. Jo Muller, APRNPsychiatric/Mental Health Nurse Practitioner1689126799
  22. Kara Mulligan, PA-CPhysician Assistant1487085023
  23. Katherine MullinsAthletic Trainer1497358121
  24. Riley Mullins, DCChiropractor1508556853
  25. Anna Mulrooney, MS, CCC-SLPSpeech-Language Pathologist1801198254
  26. Hunter MumawRegistered Dietitian1528836954
  27. Margaret Mumford, RNSchool Registered Nurse1265987960
  28. Eric Munn, M.D.Rheumatology Physician1659336063
  29. Kirsten Munson, LCPCProfessional Counselor1053410068
  30. Benjamin Muoghalu, PHARMDPharmacist1467399873
  31. Hurmina Muqtadar, MDNeurology Physician1366647232
  32. Melissa Murillo, LSWSocial Worker1164112918
  33. Angela MuriraAnesthesiology Physician1639757347
  34. Elena Muro, PA-CPhysician Assistant1699625160
  35. Abigail Murphy, APNFamily Nurse Practitioner1164812988
  36. Brian Murphy, M.D.Orthopaedic Hand Surgery Physician1609862325
  37. Brittany Murphy, DPT, PTPhysical Therapist1225807340
  38. Coleen Murphy, APRN-FNPFamily Nurse Practitioner1629647201
  39. Jeanine Murphy, APN-CNPNurse Practitioner1619495017
  40. Kathleen Murphy, MA, CRC, LCPC, CEASMental Health Counselor1801411665
  41. Meghan MurphyBehavior Analyst1073011003
  42. Michael Murphy, EDDPastoral Counselor1497996201
  43. Patricia Murphy, MDPediatrics Physician1396712741
  44. William Murphy, D.D.S.General Practice Dentistry1316076979
  45. Catherine Murray, MSW, LCSWClinical Social Worker1407177611
  46. Kathleen Murray, PH.D.Speech-Language Pathologist1578739041
  47. Nancy Murray, ED.DClinical Psychologist1457574899
  48. Rachel Murray, LCSWClinical Social Worker1073048245
  49. Emily Murschel, ANPNurse Practitioner1699559674
  50. Brian Musial, L.ACAcupuncturist1932456720

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.