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 29 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. Tiffany WilsonClinical Social Worker1992359046
  2. Mackenzie WinkielPhysical Therapist1396570891
  3. Jenna Winsko, ANP-BCAdult Health Nurse Practitioner1013261361
  4. Emily WintersDevelopmental Therapist1134642796
  5. Megan Wisser-Chung, RD, LDNRegistered Dietitian1821113549
  6. Andrew WoenkerBehavior Technician1134059801
  7. Olivia WohlfordBehavior Technician1922869742
  8. Elizabeth WolfSocial Worker1699162396
  9. Jessica Wolf, MDNeurology Physician1104441252
  10. Jurney WolfBehavior Technician1821800095
  11. Lori WolfbergDevelopmental Therapist1174973556
  12. Jessica Woloshyn, NCC, LPCProfessional Counselor1871188375
  13. Jarrett Wolske, MS, OTR/LPediatric Occupational Therapist1386154136
  14. Susi Wong, PHARMDPharmacist1124628383
  15. Sara Work, M.S., CCC-SLP/LSpeech-Language Pathologist1174753057
  16. Diana WozniakMassage Therapist1356720304
  17. Heather Wright, M.S., CCC-SLPSpeech-Language Pathologist1033283411
  18. Sylwia Wronka, PHARMDPharmacist1184451361
  19. Catherine WysockaPediatrics Physician1184156903
  20. John Yang, DMDGeneral Practice Dentistry1619970332
  21. Reanna YarveicyProfessional Counselor1578222014
  22. Ellen Young, LCPCMental Health Counselor1952068249
  23. Mary YoungOccupational Therapist1245561547
  24. Andrew Yu, M.D.Pain Medicine (Anesthesiology) Physician1689889354
  25. Dustin Yuhn, PHARMDPharmacist1285925800
  26. Antonio Yuk, M.D.Neurological Surgery Physician1235181306
  27. Emily Zachman, M.S.Speech-Language Pathologist1861241275
  28. Thomas Zafiratos, D.D.S.General Practice Dentistry1619290640
  29. Stacy Zaharias, MACounselor1881285468
  30. Jane Zamudio, LCPCProfessional Counselor1972220085
  31. Brittany Zarate, OTR/LPediatric Occupational Therapist1659953313
  32. Alexandria Zell, MOT, OTR/LOccupational Therapist1447066113
  33. Susan Zels, PTAPhysical Therapy Assistant1548527005
  34. Lisa ZemaitisPhysical Therapy Assistant1770954125
  35. Rebecca Zender, MA LPC, MS CCC-SLPSpeech-Language Pathologist1295913598
  36. Christopher Zielinski, BCBABehavior Analyst1205358769
  37. Sara Zielinski, MS, OTR/LOccupational Therapist1912246596
  38. Robert Zima, LCPCProfessional Counselor1306083902
  39. Deborah Zorn, PTPhysical Therapist1275749269
  40. Leanne Gabrielle ZshornackBehavior Technician1255123121
  41. Kristen ZuccoOccupational Therapist1598530495
  42. Tami Zuck, D.D.S.General Practice Dentistry1508909573

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.