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 10 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. Heather GarciaSocial Worker1912354077
  2. Missael GarciaBehavior Technician1639630163
  3. Nicole Garcia, PSYDClinical Neuropsychologist1194552752
  4. Yovaniel Garcia DiazBehavior Technician1750238283
  5. Marissa Gardner, LSWClinical Social Worker1740901594
  6. Vamsi Garlapati, MDPsychiatry Physician1407855711
  7. Noreen Garmisch, LPCMental Health Counselor1366116154
  8. Jennifer Garrels, FNP-BC,RN,RDFamily Nurse Practitioner1801351648
  9. Amy Gartner, LCSWClinical Social Worker1982841359
  10. Mary Garza, LPCMental Health Counselor1336903350
  11. John Gaskill, M.D.Emergency Medicine Physician1316058043
  12. Christopher GatesSpeech-Language Pathologist1699853085
  13. Julie GatesSpeech-Language Pathologist1326126715
  14. Kenneth Gates, M.A.Professional Counselor1609905009
  15. Lisa GazdziakFamily Nurse Practitioner1386310605
  16. Erica GazijaNutritionist1326907858
  17. Karen GeallisOccupational Therapist1992959209
  18. Michelle Gehlaar, COTAOccupational Therapy Assistant1558112847
  19. Monica Geiser, PT, DPTPhysical Therapist1497484828
  20. Glenn Gelman, PSY.D.Clinical Psychologist1487736690
  21. Larry Gelman, PSY.D.Clinical Psychologist1902988215
  22. Payton GentgesPhysician Assistant1184445447
  23. Frank Gentile, M.D.Anesthesiology Physician1831157080
  24. Michelle Gerlach, LCSW, MAClinical Social Worker1730647090
  25. Margaret Giacchetti, DNP, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1467321802
  26. Jeanne Giampa, PTPhysical Therapist1295941268
  27. Todd Giese, MDPediatrics Physician1558374017
  28. Kaitlin Gillespie, DPTPhysical Therapist1114348786
  29. Brizza Gillette, DNP- PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1396672259
  30. Sean Gilmore, DCChiropractor1881038040
  31. Gregory Given, PT, MHS, SCS, ATCSports Physical Therapist1720166655
  32. Marina Gladson, MDFamily Medicine Physician1588751366
  33. Nicole Glinski, B.S, COTA/LOccupational Therapy Assistant1134578453
  34. Katherine Godfrey, MDChild & Adolescent Psychiatry Physician1215064365
  35. Stephanie Goede, PA-CSurgical Physician Assistant1548519986
  36. Grant Goehler, LCSWClinical Social Worker1184212680
  37. Megan GoffBehavior Analyst1528820982
  38. Juliana Gonzales-Hannon, CNPFamily Nurse Practitioner1285099622
  39. Elisabet Gonzalez, BTBehavior Technician1932970159
  40. Gabriela GonzalezBehavior Technician1043027071
  41. Jasmine Gonzalez, LSWClinical Social Worker1053811992
  42. Wendy GonzalezBehavior Technician1548117377
  43. David Goodman, MD PHDOtolaryngology Physician1477610665
  44. Morgan Goorsky, LCSWClinical Social Worker1720727332
  45. Andrew GordinierCounselor1366014078
  46. Olesea Gore, LPCMental Health Counselor1518765585
  47. Lorena Gorey, ED.D.Professional Counselor1629356555
  48. Ann Gorski, PTPediatric Physical Therapist1861511784
  49. Crisy GowanMental Health Counselor1831420603
  50. Sandra Graba, MDPediatrics Physician1477717213

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.