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 12 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. Steven Hatcher, D.C.Chiropractor1467826339
  2. Kristin Havemann, DPTPhysical Therapist1710553425
  3. Timothy Havenhill, M.D.Orthopaedic Hand Surgery Physician1124190723
  4. Timothy Hayes, PSY.D.Clinical Psychologist1134131568
  5. Cameron Hays, MDPediatrics Physician1740860204
  6. Cathy Heavey, PTAPhysical Therapy Assistant1811399744
  7. Sarah Hehemann, DNPPediatric Nurse Practitioner1710717871
  8. Kenneth Heinrichs, PSYDClinical Psychologist1467556589
  9. Amanda Helbling, MPTPhysical Therapist1336268226
  10. Alexander Hembrey, PA-CSurgical Physician Assistant1497295125
  11. Virginia Hemelt, MDNeurology Physician1710984638
  12. Tiffani Henn, APRN, FNP-CFamily Nurse Practitioner1255115838
  13. William HennessyPhysical Therapy Assistant1700661352
  14. Amanda Henry, D.D.SDentist1982969770
  15. Kay Henry, DDSGeneral Practice Dentistry1720115819
  16. Meredith HenselSpeech-Language Pathologist1124533088
  17. Amy Hensley, LCSWClinical Social Worker1538672894
  18. Christine Hepperlen, NPNurse Practitioner1316017007
  19. Mary Heraty, LCPCProfessional Counselor1750464483
  20. Joseph Herba, O.D.Optometrist1265584247
  21. Abbey HerediaOccupational Therapist1558117515
  22. Joann HermanCounselor1891812111
  23. Maribel HernandezBehavior Technician1437089018
  24. Madelyn Hesslau, LCPCMental Health Counselor1285412791
  25. Ryan Hesslau, LCPCMental Health Counselor1386481349
  26. Mary Hewson, LPNLicensed Practical Nurse1538967914
  27. Caitlin HickmanBehavior Analyst1366090490
  28. Tania HickmanMassage Therapist1972456705
  29. Jordan Hieber, RBT, M.A.Behavior Technician1013843747
  30. Kayla Hieras, RBTBehavior Technician1477373397
  31. Aimee Higgins, LACAcupuncturist1205404373
  32. Laura Hildebrandt, PTAPhysical Therapy Assistant1861680290
  33. Emily HilgenbergBehavior Technician1609735653
  34. Matthew Hill, DCChiropractor1992288203
  35. Shannon Hill, LCSWClinical Social Worker1164177325
  36. Kathy Hinz, ED.DSchool Psychologist1952809394
  37. Sarah HirstOccupational Therapist1336861939
  38. Daniel Ho, DMDDentist1306525142
  39. Lauren HochbergBehavior Technician1568923548
  40. Mackenzie HodgeBehavior Technician1760376966
  41. Kelsey HoffmanMental Health Counselor1881527372
  42. Robert Hoffman, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1487690731
  43. Kyle Holder, FNP-BCNurse Practitioner1386389815
  44. Mary Holem, FNP-BCFamily Nurse Practitioner1972897791
  45. Amanda Hollensbe, PTPhysical Therapist1922053149
  46. Leah HolstenDevelopmental Therapist1538650403
  47. Barbara Holub, L.AC., M.S.O.M.Acupuncturist1730355611
  48. Britta Hon, DPTPhysical Therapist1770624413
  49. Aimee HopkinsonHealth & Wellness Coach1861351306
  50. Jeremy Houtakker, P.A.Surgical Physician Assistant1902092109

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.