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 44 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. Sara WilkinsonPhysical Therapist1376102103
  2. James WillettsCounselor1679082853
  3. Michael WilleyPharmacist1023764966
  4. Andrea Williams, PA-CPhysician Assistant1639957871
  5. Audrey WilliamsSocial Worker1164823373
  6. Brenda Williams, M.S.Mental Health Counselor1073814364
  7. Brenda Williams, LCSWClinical Social Worker1083360994
  8. Crystal Williams, RDHDental Hygienist1790106599
  9. Darol WilliamsAddiction (Substance Use Disorder) Counselor1487169306
  10. Joe Williams, M.D.Pediatrics Physician1275575128
  11. Joshua Williams, AG-CNSAcute Care Clinical Nurse Specialist1194385732
  12. Lee WilliamsCounselor1225437205
  13. Marjorie WilliamsSpeech-Language Pathologist1124763701
  14. Nicole Williams, LCSWClinical Social Worker1174939201
  15. Sarah WilliamsSchool Social Worker1285525188
  16. Taresa WilliamsNurse's Aide1730652868
  17. Justin Willis, LMTMassage Therapist1003186446
  18. Emily Willmann, AGNP-CPrimary Care Nurse Practitioner1467020644
  19. Alexandria Wilson, PT, DPTPhysical Therapist1992660351
  20. Angela Wilson, LPNLicensed Practical Nurse1568764538
  21. Karlie WilsonBehavior Analyst1174114300
  22. Lisa Wilson, OTROccupational Therapist1518175629
  23. Marcus Wilson, BAAddiction (Substance Use Disorder) Counselor1174055750
  24. Regina WilsonMental Health Counselor1386037737
  25. Sarah WilsonCounselor1801381181
  26. Star Wilson, RNPsychiatric/Mental Health Registered Nurse1962535526
  27. Samantha Winder, ODOptometrist1376906966
  28. Kelley Winkle-BryanMental Health Counselor1962978015
  29. Mary Wintersieck, PT, DPTPhysical Therapist1437405644
  30. Alex Wirth, LMTMassage Therapist1427783273
  31. Kristina WirzOccupational Therapist1871379750
  32. Rudolph Woessner, DDSGeneral Practice Dentistry1124168364
  33. Hayley Wolach, NPFamily Nurse Practitioner1518680263
  34. Elizabeth Wolfe, LCSWClinical Social Worker1285871707
  35. Joshua WolfinsohnMental Health Counselor1669803037
  36. Lawrence Wolk, MDPediatrics Physician1104932649
  37. Margarita Wong, PAPhysician Assistant1902935547
  38. Monica Wong, FNPFamily Nurse Practitioner1952119000
  39. Robert Wong, RCCounselor1851422117
  40. Brittany Wood, PA-CPhysician Assistant1508254038
  41. Kara WoodardSpeech-Language Pathologist1730518325
  42. Jennifer WoodbySpeech-Language Pathologist1710305719
  43. Montoya WoodenDoula1962350876
  44. Katherine Woodley, MA, LPCMental Health Counselor1306974894
  45. Paul Wozniak, LPCProfessional Counselor1013379072
  46. Teresa Wren, LMSWSocial Worker1932357175
  47. Kelli WretlindMental Health Counselor1568909406
  48. Rebeca WrightAddiction (Substance Use Disorder) Counselor1790159655
  49. Lily Wu, PT, DPTPhysical Therapist1871010215
  50. Amy WurthCase Manager/Care Coordinator1013316991

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.