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 80 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. Deborah SpennerClinical Social Worker1790389138
  2. Lisa Spevacek, ODOptometrist1184700908
  3. Gina Spielman, LCSWClinical Social Worker1790859577
  4. Annette Spiezio, LCPCProfessional Counselor1083031363
  5. Suada Spirtovic, MDAnesthesiology Physician1700972999
  6. Lanie Spoljaric, MPTPediatric Physical Therapist1295896579
  7. Emma SpooBehavior Technician1528566361
  8. Todd Spragg, DDSGeneral Practice Dentistry1427153956
  9. Kevin Sprenkle, PSY.DClinical Psychologist1033752282
  10. Nicole Springer-Iannantuoni, PSY.D.Psychologist1154565877
  11. Daniel Sproul, DSL, IHPHealth & Wellness Coach1790668572
  12. Natalie Sprovieri-Karlovic, LPCMental Health Counselor1720780604
  13. Rey SriaroonHospitalist Physician1407199003
  14. Jayanthi Sridhar, PTPhysical Therapist1497926679
  15. Padmini Sriman, BCBABehavior Analyst1386926012
  16. Courtney SrumSpeech-Language Pathologist1831608397
  17. Natasha St. Victor, LCSWClinical Social Worker1720533573
  18. Tamara Stabrowski, RD, LDN, CEDRDRegistered Dietitian1942668827
  19. Catherine Stachnik, D.O.Neurology Physician1740572247
  20. Peter Stadalsky, DCChiropractor1285417717
  21. Jillian StaffeldtBehavior Technician1710838206
  22. Steven Stakenas, APRN, CNPNurse Practitioner1558459099
  23. Jack StamAthletic Trainer1265377030
  24. Joseph Stang, M.S.W.Clinical Social Worker1881785822
  25. Jessica StanishPhysical Therapist1982019543
  26. Kelly Stankiewicz, M.D.Dermatology Physician1598987307
  27. Milena Stankovic, BCBA-1-20-46770Behavior Analyst1285123208
  28. Veronica Stanton, DNP, PNP - PCPediatric Nurse Practitioner1720786239
  29. Kimberly StarrWomen's Health Nurse Practitioner1043510597
  30. David Stasior, M.D.Emergency Medicine Physician1750613717
  31. Lori Stauch, O.D.Optometrist1508917618
  32. Cynthia Stedman, DPTPediatric Physical Therapist1063643823
  33. Linda Steeb, DOInternal Medicine Physician1740454404
  34. Ashley Stefanski, PHARMDPharmacist1235781832
  35. Dana Steffen, MBA, RDN, LDNRegistered Dietitian1316827983
  36. Roberta Stege, LCPC, CADCProfessional Counselor1730676859
  37. Emilija SteigvilaiteBehavior Technician1184370769
  38. Alome Stein, PSY.D.Clinical Psychologist1386765949
  39. Olivia SteinbergOptometrist1770938177
  40. Stephen Steinmetz, O.D.Optometrist1265414817
  41. Clara StelmanAnesthesiology Physician1790247682
  42. Leslie Stentz, DCChiropractor1679427256
  43. William Stephan, MDInterventional Cardiology Physician1851344931
  44. Tracy Stephen, ATC/LATSpecialist1477513620
  45. Maryellen SterkCounselor1760042493
  46. Daniel Sterling, PHARMDPharmacist1053657817
  47. Marie Steta, APNAdult Health Nurse Practitioner1588055958
  48. Darlene Stevens, LCPCMental Health Counselor1528302098
  49. Jennifer Stewart, LCPCCounselor1851959019
  50. Stacey Stewart, LCPCProfessional Counselor1619054178

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.