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 26 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. Jeffrey Maxwell, PTAPhysical Therapy Assistant1003486879
  2. Rachel Maxwell, PT, DPTPhysical Therapist1821660820
  3. John May, ODOptometrist1154351732
  4. Philippa May, MA-CCC-SLPSpeech-Language Pathologist1568248722
  5. Katherine MayfieldCase Manager/Care Coordinator1033671730
  6. Michael Mayo, MDChild & Adolescent Psychiatry Physician1245255504
  7. Lisanne Mazzola, LPCProfessional Counselor1396074514
  8. Brandi MazzucaBehavior Analyst1437462090
  9. Michael McAllister, PTAPhysical Therapy Assistant1285207340
  10. Robert McBride, D.D.S.Endodontics1477865657
  11. Brenna McBrien, R.N.Medical-Surgical Registered Nurse1124393376
  12. Devin McCann, CCC-SLPSpeech-Language Pathologist1144006305
  13. Molly McCarthy, MS, CCC-SLPSpeech-Language Pathologist1225490790
  14. Patrick McClure, DDSGeneral Practice Dentistry1629070537
  15. Nancy McConnell, PA-CMedical Physician Assistant1154384790
  16. Renee McCormick, COTAOccupational Therapy Assistant1922479898
  17. Alicia McCown, PA-CSurgical Physician Assistant1740359439
  18. Brenna McCracken, MACounselor1619020872
  19. Caitlin McCroryCase Manager/Care Coordinator1427243294
  20. Barbara McCubbin, LPCProfessional Counselor1932849551
  21. Matthew McDiarmid, DOInterventional Cardiology Physician1003234162
  22. Angela McDonald, PAPhysician Assistant1972735488
  23. Shivan McDonald, PTPhysical Therapist1891368684
  24. Gwendolyn McGinnis, MD, MCRRadiation Oncology Physician1326471194
  25. Kelsey McGuireCounselor1194210476
  26. Kathryn McGuirk, MSW, LCSW, CACIISocial Worker1205950235
  27. Veda McIntire, PT, DPT, PRPCPhysical Therapist1104094440
  28. Rachael McLaughlinAddiction (Substance Use Disorder) Counselor1497286504
  29. Cari McLerranProfessional Counselor1053197020
  30. Rachael McManusClinical Social Worker1801265574
  31. Jerico McMillon, BA, CACIIIAddiction (Substance Use Disorder) Counselor1750625463
  32. Makaela McNettNurse Practitioner1639548134
  33. Deena McNichol, LCSWClinical Social Worker1811360761
  34. Joanna McTevia, LCSW, LACClinical Social Worker1679918908
  35. Valerie MedinaCounselor1194212944
  36. Teal MeffordFamily Nurse Practitioner1932654555
  37. Felicia MeinekeMental Health Counselor1497167415
  38. Randi MeinertMental Health Counselor1508410366
  39. Elisa Melendez, MDFamily Medicine Physician1962523555
  40. Elizabeth Mellem, LSWSocial Worker1083945273
  41. Amanuel MellesMental Health Counselor1467847400
  42. Edward Melton, M.D.Family Medicine Physician1689629008
  43. Sam Melton, PMHNPPsychiatric/Mental Health Nurse Practitioner1841519626
  44. Adaliz Mendez, MSWCounselor1588057780
  45. Ana Mendoza, RDHDental Hygienist1376237743
  46. Carlos Mendoza, M.D.Cardiovascular Disease Physician1619965894
  47. Wendy Menkel, RDHDental Hygienist1710367081
  48. Basak Didem Meral, MA, LPCProfessional Counselor1710657101
  49. Audrey Mercer, BSMental Health Counselor1891161972
  50. Meaghan MercerEmergency Medicine Physician1417219262

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.