NPPES file of Aug 9, 2026

Doctors and health care providers in Thornton, CO

2,234 individual NPPES records list a practice address in Thornton, 17th of 193 Colorado cities. The largest group is mental health counselor: 244, 11% of the city's records, against 6% across Colorado. Page 45 of 45.

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

The 8 largest groups in Thornton

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

Thornton in Colorado

  • Rank in Colorado17th of 193 cities by records
  • Share of the state1.5% of Colorado's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.4% of all records
  • Mental Health Counselor rank10th of the 10 Colorado cities with the most

Compared with Colorado as a whole, Thornton has 4.7× the state's share of interpreter records and 0.22× its share of behavior technician records.

Providers in Thornton, alphabetically

  1. Aileene WyattProfessional Counselor1639681497
  2. Mackenzy WyckoffNurse's Aide1184127359
  3. Courtney YalenCounselor1417487208
  4. Julie Yancey, OTROccupational Therapist1104815901
  5. Christina YanezSocial Worker1053710723
  6. Mayna Yang, RNRegistered Nurse1851172845
  7. Thoua Yang, CMTSpecialist1255779237
  8. Tima YarmandGeneral Practice Dentistry1538862339
  9. Julie YarringtonCounselor1497144471
  10. Kristin Yates, OTOccupational Therapist1881841922
  11. Lindsey Yates, DDSDentist1861641011
  12. Sunethra Yerrapragada, DMDGeneral Practice Dentistry1518417419
  13. Karen Yocum, CPNP MSNPediatric Nurse Practitioner1265496988
  14. Erica YoungDoula1396676581
  15. Jamie Youngman, OTD, OTR/LOccupational Therapist1497308134
  16. Mark ZacconeSurgical Assistant1093181679
  17. Kyle Zachgo, DCChiropractor1174147623
  18. Laura Zahradnick, MDObstetrics & Gynecology Physician1760005235
  19. Valerie ZajacMental Health Counselor1962845644
  20. Janice Zamora, M.S., CCC-SLPSpeech-Language Pathologist1679878821
  21. Stacy ZanderOccupational Therapist1770369415
  22. Jonathyn ZapfCounselor1750748356
  23. Trina Zaragoza, NBC-HWCHealth & Wellness Coach1477371300
  24. David Zarou, D.O.Neuromusculoskeletal Medicine & OMM Physician1558326645
  25. Carolyn Zatko, LPC, LACAddiction (Substance Use Disorder) Counselor1639400823
  26. Julie Zavala, PNPPediatric Nurse Practitioner1952552408
  27. Christine Zeitlin, M.A., CCC-SLPSpeech-Language Pathologist1467867960
  28. Annarose Zelano, COTAOccupational Therapy Assistant1417577628
  29. Auxiliadora ZeledonMental Health Counselor1861026841
  30. Weston Zink, LPC LACProfessional Counselor1245762541
  31. Kelsey Zinser, DMDGeneral Practice Dentistry1699392811
  32. Grace ZolnoskyCounselor1770078057
  33. Gary Zuehlsdorff, DOInternal Medicine Physician1134247471
  34. David Zurita, DOOrthopaedic Surgery Physician1336642925

The largest Colorado cities

  1. Denver25,068
  2. Colorado Springs19,771
  3. Aurora17,400
  4. Fort Collins6,928
  5. Boulder5,635

All of Colorado →

How to read this directory

Thornton, Colorado appears in the CMS National Plan and Provider Enumeration System with 2,234 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 Thornton - 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 Thornton 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 Thornton is weighted toward Mental Health Counselor (244 clinicians, followed by Counselor with 162 and Clinical Social Worker with 139). 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 Colorado's population, Thornton reports roughly 38 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 Colorado's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Thornton practice address, a coverage gap Thornton patients typically fill by traveling to a larger nearby hub.

For Thornton 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 Thornton, CO?

There are 2,234 registered healthcare providers in Thornton, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Thornton?

The most common specialties in Thornton are Mental Health Counselor, Counselor, Clinical Social Worker, Professional Counselor, Speech-Language Pathologist. Mental Health Counselor has the most providers with 244.

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.