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 40 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. Jami Swenson, O.D.Optometrist1427431386
  2. Douglas Swindell, ODCorneal and Contact Management Optometrist1124094164
  3. Leya Sylvester, LPCCProfessional Counselor1831978345
  4. Jeanine Szabla, PMHNP, MSNPsychiatric/Mental Health Nurse Practitioner1619220761
  5. Jurand SzwajaMassage Therapist1316790744
  6. Hiroko Tanaoka, PT, DPTPhysical Therapist1265299895
  7. Allison TanisPhysician Assistant1578284147
  8. Debora Tasayco JabolaInterpreter1447067533
  9. Tedd TaskeyMarriage & Family Therapist1932526530
  10. James Tate, D.D.S.Dentist1457738833
  11. Karyn TaylorOncology Registered Nurse1124958996
  12. Matthew TaylorPediatric Occupational Therapist1508788563
  13. Rachel TaylorHealth Service Psychologist1881097731
  14. Marisa Teel, MAMental Health Counselor1629492301
  15. Donna Tegethoff, P.T.Physical Therapist1740290220
  16. Melanie Telford, PSY.D.Mental Health Counselor1275786584
  17. Wynona TellbuescherDentist1427737204
  18. Ross Temkin, CNTP, RWPNutritionist1073223962
  19. Michelle Templeton, PH.D.Counseling Psychologist1962486068
  20. Rebecca TerlouwCounselor1215327044
  21. Benny Terry, PHARMDPharmacist1558823526
  22. Olga Textoris, NPFamily Nurse Practitioner1437701000
  23. James Tharp, M.D.Pediatrics Physician1568721785
  24. Tracy Thayer, LPCProfessional Counselor1992000616
  25. Jennifer Theis, M.S.Counselor1922285972
  26. Courtney Thom, LCSWClinical Social Worker1861932964
  27. Elana ThomasSocial Worker1760854863
  28. Samantha Thomas, MSW, LCSWClinical Social Worker1457210908
  29. Shelene Thomas, D.P.T.Physical Therapist1487788071
  30. Heather Thompson, RNRegistered Nurse1053765529
  31. Kimberly ThompsonSpecialist1013391796
  32. Lori Thorndike, D.O.Family Medicine Physician1477755718
  33. Debra Thornton, NCC , LPCProfessional Counselor1982182366
  34. Tania Thoroughgood, LPC, LPCCProfessional Counselor1285774539
  35. Riley ThorsonMental Health Counselor1780244681
  36. Nicole ThouttBehavior Technician1417495789
  37. Hadley Thurmon, D.D.S.General Practice Dentistry1821172628
  38. Angelina Thurston, LPCMental Health Counselor1790035194
  39. Chantal Tibbitts, N.C.C.Professional Counselor1700162534
  40. Eric Ticen, RPH.Pharmacist1043597297
  41. Travis TidwellBehavior Technician1740080308
  42. Scott Timlin, DDSGeneral Practice Dentistry1437271947
  43. Hannah TippettMental Health Counselor1801443031
  44. Zachary Titus, CASAddiction (Substance Use Disorder) Counselor1386587566
  45. Easha Tiwari, LCSWClinical Social Worker1154712602
  46. Rafael Torosyan, MDNephrology Physician1578901625
  47. Crystal TorresMental Health Counselor1447721550
  48. Jennina Townsend, D.D.S.Dentist1942539713
  49. Michaela Tratos, MS, LPC, LACProfessional Counselor1912491549
  50. Lori Trembath, DDSGeneral Practice Dentistry1073568929

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.