NPPES file of Aug 9, 2026

Doctors and health care providers in St Charles, IL

1,113 individual NPPES records list a practice address in St Charles, 40th of 541 Illinois cities. The largest group is behavior technician: 117, 11% of the city's records, against 4% across Illinois. Page 5 of 23.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in St Charles

  1. Behavior Technician117
  2. Clinical Social Worker93
  3. Speech-Language Pathologist84
  4. Professional Counselor74
  5. Chiropractor55
  6. Physical Therapist49
  7. Mental Health Counselor44
  8. Pharmacist38

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

St Charles in Illinois

  • Rank in Illinois40th of 541 cities by records
  • Share of the state0.5% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups26.4% of all records

Compared with Illinois as a whole, St Charles has 4.1× the state's share of pediatric occupational therapist records and 0.42× its share of family nurse practitioner records.

Providers in St Charles, alphabetically

  1. Patrick Davis, DOObstetrics & Gynecology Physician1942739396
  2. Natalie De Lira, RBTBehavior Technician1285448910
  3. Barbara Decarlo, APRN, CNPNurse Practitioner1477887727
  4. Nicole Decker, BCBABehavior Analyst1801267729
  5. Samantha DedicClinical Social Worker1639727340
  6. Anariella Defrancesco, PHARMDPharmacist1689217200
  7. John Deku, LCPC, NCCProfessional Counselor1083004055
  8. Elijah Paul DelosreyesRegistered Nurse1881474518
  9. Joan Demers Bittner, RBTBehavior Technician1649004391
  10. Pamela Denhof, ATCSpecialist1043283526
  11. Katherine DennySpeech-Language Pathologist1669670808
  12. Cheryl Denz, LCPCProfessional Counselor1730209578
  13. Teila Desarno, L.C.P.C., C.A.D.C.Professional Counselor1558724039
  14. Suzanne Deserto, L.M.F.T., C.A.D.C.Marriage & Family Therapist1619169513
  15. Melissa Di Natale, LPCProfessional Counselor1750260899
  16. Jussyl DiazlunaBehavior Technician1184478026
  17. Katie DickinsonOccupational Therapist1912625237
  18. Brittany DicksonBehavior Technician1386567402
  19. Stacey Digrazia, MS, LCPCProfessional Counselor1700325065
  20. Ioanna Dimova, DCChiropractor1467075952
  21. Elisabeth DinuzzoAudiologist1871324145
  22. Kathryn Ditch, M.S., L.M.F.TMarriage & Family Therapist1063716074
  23. Leeann DixonBehavior Technician1225516016
  24. L Dohan, D.D.S.General Practice Dentistry1649203878
  25. Megan Donnally, MOT/LOccupational Therapist1508651084
  26. Katherine DouglasClinical Social Worker1982026555
  27. Thomas Dovidio, DOPediatrics Physician1316141203
  28. Lacie Drennan, D.C.Chiropractor1245761436
  29. Amy Drescher-Crumpley, DNP, CNM, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1801907589
  30. Jocelyn Droege, PH.D.Clinical Psychologist1346710605
  31. Christine Drucker, CCC-SLPSpeech-Language Pathologist1770767576
  32. Erin Dubba, LCPC, ATR, MS, MAProfessional Counselor1659786325
  33. Jennifer Dunlap, RBTBehavior Technician1124837547
  34. Courtney DuranSocial Worker1194300228
  35. Crystal DuranBehavior Technician1205533734
  36. Kaylee DurdanBehavior Technician1073370557
  37. Katherine Dybas, RBTBehavior Technician1962262402
  38. Mary E PegahiBehavior Analyst1134931546
  39. Lexie EckenrodBehavior Technician1508597527
  40. James Edmonds, DDSGeneral Practice Dentistry1760542393
  41. Joyce Edwards, L.ACAcupuncturist1740450287
  42. Annelise Ehrhardt, M.A., CCC-SLPSpeech-Language Pathologist1154884765
  43. Jenna Eisses, PA-CPhysician Assistant1033678529
  44. Kathryn Ejnik, P.T.Physical Therapist1134400682
  45. Helen ElayanCounselor1407140114
  46. Kimberly EldridgeClinical Social Worker1891274577
  47. Carol Elendt, LPCMental Health Counselor1720527377
  48. Erica Elliott, ARNPNurse Practitioner1659634129
  49. Melissa EndrenalBehavior Technician1659086650
  50. Christen Eppes, LPCProfessional Counselor1952279630

The largest Illinois cities

  1. Chicago63,379
  2. Springfield4,997
  3. Naperville4,634
  4. Peoria4,621
  5. Evanston4,013

All of Illinois →

How to read this directory

St Charles, Illinois appears in the CMS National Plan and Provider Enumeration System with 1,113 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 St Charles - 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 St Charles 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 St Charles is weighted toward Behavior Technician (117 clinicians, followed by Clinical Social Worker with 93 and Speech-Language Pathologist with 84). 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, St Charles reports roughly 8.9 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, Internal Medicine Physician is the most prominent one with no provider currently listing a St Charles practice address, a coverage gap St Charles patients typically fill by traveling to a larger nearby hub.

For St Charles 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 St Charles, IL?

There are 1,113 registered healthcare providers in St Charles, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in St Charles?

The most common specialties in St Charles are Behavior Technician, Clinical Social Worker, Speech-Language Pathologist, Professional Counselor, Chiropractor. Behavior Technician has the most providers with 117.

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.