NPPES file of Aug 9, 2026

Doctors and health care providers in Crystal Lake, IL

1,442 individual NPPES records list a practice address in Crystal Lake, 28th of 541 Illinois cities. The largest group is behavior technician: 120, 8% of the city's records, against 4% across Illinois. Page 13 of 29.

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

The 8 largest groups in Crystal Lake

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

Crystal Lake in Illinois

  • Rank in Illinois28th of 541 cities by records
  • Share of the state0.6% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups21% of all records

Compared with Illinois as a whole, Crystal Lake has 2.5× the state's share of occupational therapy assistant records and 0.41× its share of internal medicine physician records.

Providers in Crystal Lake, alphabetically

  1. Andrew HowardAthletic Trainer1104223924
  2. Jill Howe, D.C.Chiropractor1699888347
  3. Kelley Hoyt, MS PTPhysical Therapist1619148673
  4. Jonathan Huang, M.D.Internal Medicine Physician1922374024
  5. Christopher Hubbard, BCBA, LBABehavior Analyst1750260139
  6. Gina Huber, PTPhysical Therapist1093187262
  7. Sabrina Huerta, CNA, CCMAHome Health Aide1215799630
  8. Daniela Huerta De Hathaway, MDInternal Medicine Physician1235390154
  9. Killeen HultgrenHealth & Wellness Coach1639038169
  10. Alexandria HummelClinical Social Worker1487134979
  11. Michael Humphrey, PTPhysical Therapist1306103619
  12. Lori Hunter, PTPhysical Therapist1477800449
  13. Gordon Husby, PTPhysical Therapist1467485128
  14. Joanna Hutson, NP-CNurse Practitioner1730632407
  15. Melissa HutzellMental Health Counselor1386206258
  16. Lisa IandolaBehavior Technician1619829314
  17. Yvette ImanBehavior Technician1568264414
  18. Alexandra Isrow, MT-BCMusic Therapist1376840819
  19. Stacey Isrow, BS/PSYC, DTSpecialist1649366063
  20. Sandra Jaeschke, CNPNurse Practitioner1003815770
  21. Danielle JakesDevelopmental Therapist1992087852
  22. Kadijah JamesBehavior Technician1316503493
  23. Rachael JamesBehavior Technician1457179137
  24. Robert JamesBehavior Technician1215873252
  25. Vanessa Jameson, DPTPhysical Therapist1770157208
  26. Megan Janik, OTR/LSpecialist1194097725
  27. Alexandra JanshenClinical Social Worker1801522727
  28. Timothy Jantz, D.P.M.Podiatrist1447259080
  29. Eliza JanusMental Health Counselor1629904537
  30. Elayne Jarvis, DEVELOPMENTAL THERAPDevelopmental Therapist1497981732
  31. Shafaq Javaid, LCPCProfessional Counselor1619308749
  32. Kirsten Jefferson, CADCAddiction (Substance Use Disorder) Counselor1588528251
  33. Hyojin Jeon, MDFamily Medicine Physician1578190054
  34. Allison Johnson, PTGeriatric Physical Therapist1174984405
  35. Aubry Johnson, PT, DPTPhysical Therapist1154098358
  36. Gabrielle Johnson, LCPCProfessional Counselor1033559273
  37. Jennifer Johnson, LCPCMental Health Counselor1598135675
  38. Meghan JohnsonBehavior Technician1093375594
  39. Melanie Johnson, LMFTMarriage & Family Therapist1679833487
  40. Ryan Johnson, LMTMassage Therapist1588073431
  41. Ryan Johnson, LPC, NCCMental Health Counselor1346069663
  42. Taylor Johnson, FNP-BCFamily Nurse Practitioner1467122697
  43. Jennifer Johnston, L.C.S.W.Clinical Social Worker1003931619
  44. Donald Jones, LCSWClinical Social Worker1023095346
  45. Jessica Jones, LCSW, CADCClinical Social Worker1184343642
  46. Marina Jones, PHARMDPharmacist1659976942
  47. Melissa JonesHearing Instrument Specialist1972292084
  48. Michael Jones, DDSOral and Maxillofacial Surgery (Dentist)1215955745
  49. Cyndi Joplin, MA, CCC-SLPSpeech-Language Pathologist1972623668
  50. Madalene Jorda, SLPSpeech-Language Pathologist1508581182

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

Crystal Lake, Illinois appears in the CMS National Plan and Provider Enumeration System with 1,442 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 Crystal Lake - 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 Crystal Lake 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 Crystal Lake is weighted toward Behavior Technician (120 clinicians, followed by Physical Therapist with 92 and Clinical Social Worker with 91). 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, Crystal Lake reports roughly 11.5 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 Crystal Lake practice address, a coverage gap Crystal Lake patients typically fill by traveling to a larger nearby hub.

For Crystal Lake 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 Crystal Lake, IL?

There are 1,442 registered healthcare providers in Crystal Lake, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Crystal Lake?

The most common specialties in Crystal Lake are Behavior Technician, Physical Therapist, Clinical Social Worker, Professional Counselor, Speech-Language Pathologist. Behavior Technician has the most providers with 120.

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.