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 15 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. Jennifer Gilbert, LMFT, LACMarriage & Family Therapist1700065844
  2. Andrew GilhartAddiction (Substance Use Disorder) Counselor1629581582
  3. Sandra Gill, NCTMBMassage Therapist1821113457
  4. Danielle GillespieMental Health Counselor1104201797
  5. Arthur GinleyMental Health Counselor1750747713
  6. Alphonse Giordano, MDFamily Medicine Physician1477514388
  7. Carl Givan, D.D.S.General Practice Dentistry1801961131
  8. Mary Jane Glaspey, LCSWAddiction (Substance Use Disorder) Counselor1780906891
  9. Melissa Glenbowski, COTAOccupational Therapy Assistant1114523321
  10. Reilly GlivaSpeech-Language Pathologist1033647805
  11. Shannon Glorioso, L.M.T.Massage Therapist1578964862
  12. Christopher Gnip, DPTOrthopedic Physical Therapist1144230160
  13. Leah Goetz, LPCProfessional Counselor1205116449
  14. Eva Goins, RNPsychiatric/Mental Health Registered Nurse1932614807
  15. Carla Golba, R.N.Registered Nurse1972904571
  16. Ilona Gomez, FNPFamily Nurse Practitioner1093441677
  17. Karla GomezMental Health Counselor1720359730
  18. Mary Gonnella, LCSWClinical Social Worker1952701682
  19. Catalina GonsalesDoula1205790045
  20. Justina GonzalesMental Health Counselor1619257086
  21. Nicole GonzalesBehavior Technician1144055153
  22. Priscilla GonzalezCounselor1376089987
  23. Tomeka Gonzalez, M.S.W.Social Worker1821422338
  24. Bianca Gonzalez-De La RosaCounselor1710497896
  25. Anne GoochSpeech-Language Pathologist1598595001
  26. Peter GoochCounselor1811409741
  27. Amity Good, MSW, LCSWClinical Social Worker1518147131
  28. Rhonda Goodman, LCSWClinical Social Worker1477969038
  29. Quinn GoodrichCounselor1033630397
  30. Nathanael Goyins, BCBABehavior Analyst1790431690
  31. Shabbat GraciaBehavior Technician1134071012
  32. Carole GrajedaAddiction (Substance Use Disorder) Counselor1497163224
  33. Kali GrajedaMental Health Counselor1497214241
  34. Zoe GravesCounselor1609242668
  35. Bridget Green, LPNLicensed Practical Nurse1821303280
  36. Mallory Greenwood, PHARMDPharmacist1346618410
  37. James Gregory, MDFamily Medicine Physician1437105210
  38. Mary GreimannPhysical Therapist1205287554
  39. Suzanne GreinerRegistered Nurse1780489666
  40. Mekayla Gresham, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1730053109
  41. Katelynn GretenSocial Worker1184025645
  42. Kurtis GriessSchool Counselor1376935262
  43. Allison Griffin, MA, NCCProfessional Counselor1073959847
  44. Ashlee Griffin, DOTrauma Surgery Physician1184114886
  45. Stephanie GriffinCounselor1295147916
  46. Rebekah Griffith, DPTPhysical Therapist1487800389
  47. Monica Grijalva Ruiz, LCSWClinical Social Worker1811760564
  48. Marie Grob, RDHDental Hygienist1720861883
  49. Tiffany Grosjean, M.A., L.P.C.Professional Counselor1356565683
  50. Amber Groves, MAAddiction (Substance Use Disorder) Counselor1700217809

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.